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| <h1>Source code for airflow.models.dagrun</h1><div class="highlight"><pre> |
| <span></span><span class="c1">#</span> |
| <span class="c1"># Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="c1"># or more contributor license agreements. See the NOTICE file</span> |
| <span class="c1"># distributed with this work for additional information</span> |
| <span class="c1"># regarding copyright ownership. The ASF licenses this file</span> |
| <span class="c1"># to you under the Apache License, Version 2.0 (the</span> |
| <span class="c1"># "License"); you may not use this file except in compliance</span> |
| <span class="c1"># with the License. You may obtain a copy of the License at</span> |
| <span class="c1">#</span> |
| <span class="c1"># http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="c1">#</span> |
| <span class="c1"># Unless required by applicable law or agreed to in writing,</span> |
| <span class="c1"># software distributed under the License is distributed on an</span> |
| <span class="c1"># "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span> |
| <span class="c1"># KIND, either express or implied. See the License for the</span> |
| <span class="c1"># specific language governing permissions and limitations</span> |
| <span class="c1"># under the License.</span> |
| <span class="kn">from</span> <span class="nn">__future__</span> <span class="kn">import</span> <span class="n">annotations</span> |
| |
| <span class="kn">import</span> <span class="nn">itertools</span> |
| <span class="kn">import</span> <span class="nn">os</span> |
| <span class="kn">import</span> <span class="nn">warnings</span> |
| <span class="kn">from</span> <span class="nn">collections</span> <span class="kn">import</span> <span class="n">defaultdict</span> |
| <span class="kn">from</span> <span class="nn">datetime</span> <span class="kn">import</span> <span class="n">datetime</span> |
| <span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="p">(</span> |
| <span class="n">TYPE_CHECKING</span><span class="p">,</span> |
| <span class="n">Any</span><span class="p">,</span> |
| <span class="n">Callable</span><span class="p">,</span> |
| <span class="n">Iterable</span><span class="p">,</span> |
| <span class="n">Iterator</span><span class="p">,</span> |
| <span class="n">NamedTuple</span><span class="p">,</span> |
| <span class="n">Sequence</span><span class="p">,</span> |
| <span class="n">TypeVar</span><span class="p">,</span> |
| <span class="n">cast</span><span class="p">,</span> |
| <span class="n">overload</span><span class="p">,</span> |
| <span class="p">)</span> |
| |
| <span class="kn">from</span> <span class="nn">sqlalchemy</span> <span class="kn">import</span> <span class="p">(</span> |
| <span class="n">Boolean</span><span class="p">,</span> |
| <span class="n">Column</span><span class="p">,</span> |
| <span class="n">ForeignKey</span><span class="p">,</span> |
| <span class="n">Index</span><span class="p">,</span> |
| <span class="n">Integer</span><span class="p">,</span> |
| <span class="n">PickleType</span><span class="p">,</span> |
| <span class="n">String</span><span class="p">,</span> |
| <span class="n">UniqueConstraint</span><span class="p">,</span> |
| <span class="n">and_</span><span class="p">,</span> |
| <span class="n">func</span><span class="p">,</span> |
| <span class="n">or_</span><span class="p">,</span> |
| <span class="n">text</span><span class="p">,</span> |
| <span class="p">)</span> |
| <span class="kn">from</span> <span class="nn">sqlalchemy.exc</span> <span class="kn">import</span> <span class="n">IntegrityError</span> |
| <span class="kn">from</span> <span class="nn">sqlalchemy.ext.declarative</span> <span class="kn">import</span> <span class="n">declared_attr</span> |
| <span class="kn">from</span> <span class="nn">sqlalchemy.orm</span> <span class="kn">import</span> <span class="n">joinedload</span><span class="p">,</span> <span class="n">relationship</span><span class="p">,</span> <span class="n">synonym</span> |
| <span class="kn">from</span> <span class="nn">sqlalchemy.orm.session</span> <span class="kn">import</span> <span class="n">Session</span> |
| <span class="kn">from</span> <span class="nn">sqlalchemy.sql.expression</span> <span class="kn">import</span> <span class="n">false</span><span class="p">,</span> <span class="n">select</span><span class="p">,</span> <span class="n">true</span> |
| |
| <span class="kn">from</span> <span class="nn">airflow</span> <span class="kn">import</span> <span class="n">settings</span> |
| <span class="kn">from</span> <span class="nn">airflow.callbacks.callback_requests</span> <span class="kn">import</span> <span class="n">DagCallbackRequest</span> |
| <span class="kn">from</span> <span class="nn">airflow.configuration</span> <span class="kn">import</span> <span class="n">conf</span> <span class="k">as</span> <span class="n">airflow_conf</span> |
| <span class="kn">from</span> <span class="nn">airflow.exceptions</span> <span class="kn">import</span> <span class="n">AirflowException</span><span class="p">,</span> <span class="n">RemovedInAirflow3Warning</span><span class="p">,</span> <span class="n">TaskNotFound</span> |
| <span class="kn">from</span> <span class="nn">airflow.models.base</span> <span class="kn">import</span> <span class="n">Base</span><span class="p">,</span> <span class="n">StringID</span> |
| <span class="kn">from</span> <span class="nn">airflow.models.mappedoperator</span> <span class="kn">import</span> <span class="n">MappedOperator</span> |
| <span class="kn">from</span> <span class="nn">airflow.models.taskinstance</span> <span class="kn">import</span> <span class="n">TaskInstance</span> <span class="k">as</span> <span class="n">TI</span> |
| <span class="kn">from</span> <span class="nn">airflow.models.tasklog</span> <span class="kn">import</span> <span class="n">LogTemplate</span> |
| <span class="kn">from</span> <span class="nn">airflow.stats</span> <span class="kn">import</span> <span class="n">Stats</span> |
| <span class="kn">from</span> <span class="nn">airflow.ti_deps.dep_context</span> <span class="kn">import</span> <span class="n">DepContext</span> |
| <span class="kn">from</span> <span class="nn">airflow.ti_deps.dependencies_states</span> <span class="kn">import</span> <span class="n">SCHEDULEABLE_STATES</span> |
| <span class="kn">from</span> <span class="nn">airflow.typing_compat</span> <span class="kn">import</span> <span class="n">Literal</span> |
| <span class="kn">from</span> <span class="nn">airflow.utils</span> <span class="kn">import</span> <span class="n">timezone</span> |
| <span class="kn">from</span> <span class="nn">airflow.utils.helpers</span> <span class="kn">import</span> <span class="n">is_container</span> |
| <span class="kn">from</span> <span class="nn">airflow.utils.log.logging_mixin</span> <span class="kn">import</span> <span class="n">LoggingMixin</span> |
| <span class="kn">from</span> <span class="nn">airflow.utils.session</span> <span class="kn">import</span> <span class="n">NEW_SESSION</span><span class="p">,</span> <span class="n">provide_session</span> |
| <span class="kn">from</span> <span class="nn">airflow.utils.sqlalchemy</span> <span class="kn">import</span> <span class="n">UtcDateTime</span><span class="p">,</span> <span class="n">nulls_first</span><span class="p">,</span> <span class="n">skip_locked</span><span class="p">,</span> <span class="n">tuple_in_condition</span><span class="p">,</span> <span class="n">with_row_locks</span> |
| <span class="kn">from</span> <span class="nn">airflow.utils.state</span> <span class="kn">import</span> <span class="n">DagRunState</span><span class="p">,</span> <span class="n">State</span><span class="p">,</span> <span class="n">TaskInstanceState</span> |
| <span class="kn">from</span> <span class="nn">airflow.utils.types</span> <span class="kn">import</span> <span class="n">NOTSET</span><span class="p">,</span> <span class="n">ArgNotSet</span><span class="p">,</span> <span class="n">DagRunType</span> |
| |
| <span class="k">if</span> <span class="n">TYPE_CHECKING</span><span class="p">:</span> |
| <span class="kn">from</span> <span class="nn">airflow.models.dag</span> <span class="kn">import</span> <span class="n">DAG</span> |
| <span class="kn">from</span> <span class="nn">airflow.models.operator</span> <span class="kn">import</span> <span class="n">Operator</span> |
| |
| |
| <div class="viewcode-block" id="CreatedTasksType"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.CreatedTasksType">[docs]</a><span class="n">CreatedTasksType</span> <span class="o">=</span> <span class="n">TypeVar</span><span class="p">(</span><span class="s2">"CreatedTasksType"</span><span class="p">)</span></div> |
| |
| |
| <div class="viewcode-block" id="TISchedulingDecision"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.TISchedulingDecision">[docs]</a><span class="k">class</span> <span class="nc">TISchedulingDecision</span><span class="p">(</span><span class="n">NamedTuple</span><span class="p">):</span> |
| <span class="sd">"""Type of return for DagRun.task_instance_scheduling_decisions"""</span> |
| |
| <div class="viewcode-block" id="TISchedulingDecision.tis"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.TISchedulingDecision.tis">[docs]</a> <span class="n">tis</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="n">TI</span><span class="p">]</span></div> |
| <div class="viewcode-block" id="TISchedulingDecision.schedulable_tis"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.TISchedulingDecision.schedulable_tis">[docs]</a> <span class="n">schedulable_tis</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="n">TI</span><span class="p">]</span></div> |
| <div class="viewcode-block" id="TISchedulingDecision.changed_tis"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.TISchedulingDecision.changed_tis">[docs]</a> <span class="n">changed_tis</span><span class="p">:</span> <span class="nb">bool</span></div> |
| <div class="viewcode-block" id="TISchedulingDecision.unfinished_tis"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.TISchedulingDecision.unfinished_tis">[docs]</a> <span class="n">unfinished_tis</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="n">TI</span><span class="p">]</span></div> |
| <div class="viewcode-block" id="TISchedulingDecision.finished_tis"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.TISchedulingDecision.finished_tis">[docs]</a> <span class="n">finished_tis</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="n">TI</span><span class="p">]</span></div></div> |
| |
| |
| <div class="viewcode-block" id="DagRun"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun">[docs]</a><span class="k">class</span> <span class="nc">DagRun</span><span class="p">(</span><span class="n">Base</span><span class="p">,</span> <span class="n">LoggingMixin</span><span class="p">):</span> |
| <span class="sd">"""</span> |
| <span class="sd"> DagRun describes an instance of a Dag. It can be created</span> |
| <span class="sd"> by the scheduler (for regular runs) or by an external trigger</span> |
| <span class="sd"> """</span> |
| |
| <div class="viewcode-block" id="DagRun.__tablename__"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.__tablename__">[docs]</a> <span class="n">__tablename__</span> <span class="o">=</span> <span class="s2">"dag_run"</span></div> |
| |
| <div class="viewcode-block" id="DagRun.id"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.id">[docs]</a> <span class="nb">id</span> <span class="o">=</span> <span class="n">Column</span><span class="p">(</span><span class="n">Integer</span><span class="p">,</span> <span class="n">primary_key</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span></div> |
| <div class="viewcode-block" id="DagRun.dag_id"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.dag_id">[docs]</a> <span class="n">dag_id</span> <span class="o">=</span> <span class="n">Column</span><span class="p">(</span><span class="n">StringID</span><span class="p">(),</span> <span class="n">nullable</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span></div> |
| <div class="viewcode-block" id="DagRun.queued_at"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.queued_at">[docs]</a> <span class="n">queued_at</span> <span class="o">=</span> <span class="n">Column</span><span class="p">(</span><span class="n">UtcDateTime</span><span class="p">)</span></div> |
| <div class="viewcode-block" id="DagRun.execution_date"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.execution_date">[docs]</a> <span class="n">execution_date</span> <span class="o">=</span> <span class="n">Column</span><span class="p">(</span><span class="n">UtcDateTime</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="n">timezone</span><span class="o">.</span><span class="n">utcnow</span><span class="p">,</span> <span class="n">nullable</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span></div> |
| <div class="viewcode-block" id="DagRun.start_date"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.start_date">[docs]</a> <span class="n">start_date</span> <span class="o">=</span> <span class="n">Column</span><span class="p">(</span><span class="n">UtcDateTime</span><span class="p">)</span></div> |
| <div class="viewcode-block" id="DagRun.end_date"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.end_date">[docs]</a> <span class="n">end_date</span> <span class="o">=</span> <span class="n">Column</span><span class="p">(</span><span class="n">UtcDateTime</span><span class="p">)</span></div> |
| <span class="n">_state</span> <span class="o">=</span> <span class="n">Column</span><span class="p">(</span><span class="s1">'state'</span><span class="p">,</span> <span class="n">String</span><span class="p">(</span><span class="mi">50</span><span class="p">),</span> <span class="n">default</span><span class="o">=</span><span class="n">State</span><span class="o">.</span><span class="n">QUEUED</span><span class="p">)</span> |
| <div class="viewcode-block" id="DagRun.run_id"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.run_id">[docs]</a> <span class="n">run_id</span> <span class="o">=</span> <span class="n">Column</span><span class="p">(</span><span class="n">StringID</span><span class="p">(),</span> <span class="n">nullable</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span></div> |
| <div class="viewcode-block" id="DagRun.creating_job_id"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.creating_job_id">[docs]</a> <span class="n">creating_job_id</span> <span class="o">=</span> <span class="n">Column</span><span class="p">(</span><span class="n">Integer</span><span class="p">)</span></div> |
| <div class="viewcode-block" id="DagRun.external_trigger"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.external_trigger">[docs]</a> <span class="n">external_trigger</span> <span class="o">=</span> <span class="n">Column</span><span class="p">(</span><span class="n">Boolean</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span></div> |
| <div class="viewcode-block" id="DagRun.run_type"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.run_type">[docs]</a> <span class="n">run_type</span> <span class="o">=</span> <span class="n">Column</span><span class="p">(</span><span class="n">String</span><span class="p">(</span><span class="mi">50</span><span class="p">),</span> <span class="n">nullable</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span></div> |
| <div class="viewcode-block" id="DagRun.conf"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.conf">[docs]</a> <span class="n">conf</span> <span class="o">=</span> <span class="n">Column</span><span class="p">(</span><span class="n">PickleType</span><span class="p">)</span></div> |
| <span class="c1"># These two must be either both NULL or both datetime.</span> |
| <div class="viewcode-block" id="DagRun.data_interval_start"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.data_interval_start">[docs]</a> <span class="n">data_interval_start</span> <span class="o">=</span> <span class="n">Column</span><span class="p">(</span><span class="n">UtcDateTime</span><span class="p">)</span></div> |
| <div class="viewcode-block" id="DagRun.data_interval_end"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.data_interval_end">[docs]</a> <span class="n">data_interval_end</span> <span class="o">=</span> <span class="n">Column</span><span class="p">(</span><span class="n">UtcDateTime</span><span class="p">)</span></div> |
| <span class="c1"># When a scheduler last attempted to schedule TIs for this DagRun</span> |
| <div class="viewcode-block" id="DagRun.last_scheduling_decision"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.last_scheduling_decision">[docs]</a> <span class="n">last_scheduling_decision</span> <span class="o">=</span> <span class="n">Column</span><span class="p">(</span><span class="n">UtcDateTime</span><span class="p">)</span></div> |
| <div class="viewcode-block" id="DagRun.dag_hash"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.dag_hash">[docs]</a> <span class="n">dag_hash</span> <span class="o">=</span> <span class="n">Column</span><span class="p">(</span><span class="n">String</span><span class="p">(</span><span class="mi">32</span><span class="p">))</span></div> |
| <span class="c1"># Foreign key to LogTemplate. DagRun rows created prior to this column's</span> |
| <span class="c1"># existence have this set to NULL. Later rows automatically populate this on</span> |
| <span class="c1"># insert to point to the latest LogTemplate entry.</span> |
| <div class="viewcode-block" id="DagRun.log_template_id"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.log_template_id">[docs]</a> <span class="n">log_template_id</span> <span class="o">=</span> <span class="n">Column</span><span class="p">(</span> |
| <span class="n">Integer</span><span class="p">,</span> |
| <span class="n">ForeignKey</span><span class="p">(</span><span class="s2">"log_template.id"</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="s2">"task_instance_log_template_id_fkey"</span><span class="p">,</span> <span class="n">ondelete</span><span class="o">=</span><span class="s2">"NO ACTION"</span><span class="p">),</span> |
| <span class="n">default</span><span class="o">=</span><span class="n">select</span><span class="p">([</span><span class="n">func</span><span class="o">.</span><span class="n">max</span><span class="p">(</span><span class="n">LogTemplate</span><span class="o">.</span><span class="n">__table__</span><span class="o">.</span><span class="n">c</span><span class="o">.</span><span class="n">id</span><span class="p">)]),</span></div> |
| <span class="p">)</span> |
| |
| <span class="c1"># Remove this `if` after upgrading Sphinx-AutoAPI</span> |
| <span class="k">if</span> <span class="ow">not</span> <span class="n">TYPE_CHECKING</span> <span class="ow">and</span> <span class="s2">"BUILDING_AIRFLOW_DOCS"</span> <span class="ow">in</span> <span class="n">os</span><span class="o">.</span><span class="n">environ</span><span class="p">:</span> |
| <span class="n">dag</span><span class="p">:</span> <span class="n">DAG</span> <span class="o">|</span> <span class="kc">None</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="n">dag</span><span class="p">:</span> <span class="n">DAG</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span> |
| |
| <div class="viewcode-block" id="DagRun.__table_args__"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.__table_args__">[docs]</a> <span class="n">__table_args__</span> <span class="o">=</span> <span class="p">(</span> |
| <span class="n">Index</span><span class="p">(</span><span class="s1">'dag_id_state'</span><span class="p">,</span> <span class="n">dag_id</span><span class="p">,</span> <span class="n">_state</span><span class="p">),</span> |
| <span class="n">UniqueConstraint</span><span class="p">(</span><span class="s1">'dag_id'</span><span class="p">,</span> <span class="s1">'execution_date'</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="s1">'dag_run_dag_id_execution_date_key'</span><span class="p">),</span> |
| <span class="n">UniqueConstraint</span><span class="p">(</span><span class="s1">'dag_id'</span><span class="p">,</span> <span class="s1">'run_id'</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="s1">'dag_run_dag_id_run_id_key'</span><span class="p">),</span> |
| <span class="n">Index</span><span class="p">(</span><span class="s1">'idx_last_scheduling_decision'</span><span class="p">,</span> <span class="n">last_scheduling_decision</span><span class="p">),</span> |
| <span class="n">Index</span><span class="p">(</span><span class="s1">'idx_dag_run_dag_id'</span><span class="p">,</span> <span class="n">dag_id</span><span class="p">),</span> |
| <span class="n">Index</span><span class="p">(</span> |
| <span class="s1">'idx_dag_run_running_dags'</span><span class="p">,</span> |
| <span class="s1">'state'</span><span class="p">,</span> |
| <span class="s1">'dag_id'</span><span class="p">,</span> |
| <span class="n">postgresql_where</span><span class="o">=</span><span class="n">text</span><span class="p">(</span><span class="s2">"state='running'"</span><span class="p">),</span> |
| <span class="n">mssql_where</span><span class="o">=</span><span class="n">text</span><span class="p">(</span><span class="s2">"state='running'"</span><span class="p">),</span> |
| <span class="n">sqlite_where</span><span class="o">=</span><span class="n">text</span><span class="p">(</span><span class="s2">"state='running'"</span><span class="p">),</span> |
| <span class="p">),</span> |
| <span class="c1"># since mysql lacks filtered/partial indices, this creates a</span> |
| <span class="c1"># duplicate index on mysql. Not the end of the world</span> |
| <span class="n">Index</span><span class="p">(</span> |
| <span class="s1">'idx_dag_run_queued_dags'</span><span class="p">,</span> |
| <span class="s1">'state'</span><span class="p">,</span> |
| <span class="s1">'dag_id'</span><span class="p">,</span> |
| <span class="n">postgresql_where</span><span class="o">=</span><span class="n">text</span><span class="p">(</span><span class="s2">"state='queued'"</span><span class="p">),</span> |
| <span class="n">mssql_where</span><span class="o">=</span><span class="n">text</span><span class="p">(</span><span class="s2">"state='queued'"</span><span class="p">),</span> |
| <span class="n">sqlite_where</span><span class="o">=</span><span class="n">text</span><span class="p">(</span><span class="s2">"state='queued'"</span><span class="p">),</span></div> |
| <span class="p">),</span> |
| <span class="p">)</span> |
| |
| <div class="viewcode-block" id="DagRun.task_instances"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.task_instances">[docs]</a> <span class="n">task_instances</span> <span class="o">=</span> <span class="n">relationship</span><span class="p">(</span> |
| <span class="n">TI</span><span class="p">,</span> <span class="n">back_populates</span><span class="o">=</span><span class="s2">"dag_run"</span><span class="p">,</span> <span class="n">cascade</span><span class="o">=</span><span class="s1">'save-update, merge, delete, delete-orphan'</span></div> |
| <span class="p">)</span> |
| <div class="viewcode-block" id="DagRun.dag_model"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.dag_model">[docs]</a> <span class="n">dag_model</span> <span class="o">=</span> <span class="n">relationship</span><span class="p">(</span> |
| <span class="s2">"DagModel"</span><span class="p">,</span> |
| <span class="n">primaryjoin</span><span class="o">=</span><span class="s2">"foreign(DagRun.dag_id) == DagModel.dag_id"</span><span class="p">,</span> |
| <span class="n">uselist</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> |
| <span class="n">viewonly</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span></div> |
| <span class="p">)</span> |
| |
| <div class="viewcode-block" id="DagRun.DEFAULT_DAGRUNS_TO_EXAMINE"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.DEFAULT_DAGRUNS_TO_EXAMINE">[docs]</a> <span class="n">DEFAULT_DAGRUNS_TO_EXAMINE</span> <span class="o">=</span> <span class="n">airflow_conf</span><span class="o">.</span><span class="n">getint</span><span class="p">(</span> |
| <span class="s1">'scheduler'</span><span class="p">,</span> |
| <span class="s1">'max_dagruns_per_loop_to_schedule'</span><span class="p">,</span> |
| <span class="n">fallback</span><span class="o">=</span><span class="mi">20</span><span class="p">,</span></div> |
| <span class="p">)</span> |
| |
| <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span> |
| <span class="bp">self</span><span class="p">,</span> |
| <span class="n">dag_id</span><span class="p">:</span> <span class="nb">str</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">run_id</span><span class="p">:</span> <span class="nb">str</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">queued_at</span><span class="p">:</span> <span class="n">datetime</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">|</span> <span class="n">ArgNotSet</span> <span class="o">=</span> <span class="n">NOTSET</span><span class="p">,</span> |
| <span class="n">execution_date</span><span class="p">:</span> <span class="n">datetime</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">start_date</span><span class="p">:</span> <span class="n">datetime</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">external_trigger</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">conf</span><span class="p">:</span> <span class="n">Any</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">state</span><span class="p">:</span> <span class="n">DagRunState</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">run_type</span><span class="p">:</span> <span class="nb">str</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">dag_hash</span><span class="p">:</span> <span class="nb">str</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">creating_job_id</span><span class="p">:</span> <span class="nb">int</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">data_interval</span><span class="p">:</span> <span class="nb">tuple</span><span class="p">[</span><span class="n">datetime</span><span class="p">,</span> <span class="n">datetime</span><span class="p">]</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="p">):</span> |
| <span class="k">if</span> <span class="n">data_interval</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="c1"># Legacy: Only happen for runs created prior to Airflow 2.2.</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">data_interval_start</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">data_interval_end</span> <span class="o">=</span> <span class="kc">None</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">data_interval_start</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">data_interval_end</span> <span class="o">=</span> <span class="n">data_interval</span> |
| |
| <span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span> <span class="o">=</span> <span class="n">dag_id</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">run_id</span> <span class="o">=</span> <span class="n">run_id</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">execution_date</span> <span class="o">=</span> <span class="n">execution_date</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">start_date</span> <span class="o">=</span> <span class="n">start_date</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">external_trigger</span> <span class="o">=</span> <span class="n">external_trigger</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">conf</span> <span class="o">=</span> <span class="n">conf</span> <span class="ow">or</span> <span class="p">{}</span> |
| <span class="k">if</span> <span class="n">state</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">state</span> <span class="o">=</span> <span class="n">state</span> |
| <span class="k">if</span> <span class="n">queued_at</span> <span class="ow">is</span> <span class="n">NOTSET</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">queued_at</span> <span class="o">=</span> <span class="n">timezone</span><span class="o">.</span><span class="n">utcnow</span><span class="p">()</span> <span class="k">if</span> <span class="n">state</span> <span class="o">==</span> <span class="n">State</span><span class="o">.</span><span class="n">QUEUED</span> <span class="k">else</span> <span class="kc">None</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">queued_at</span> <span class="o">=</span> <span class="n">queued_at</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">run_type</span> <span class="o">=</span> <span class="n">run_type</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">dag_hash</span> <span class="o">=</span> <span class="n">dag_hash</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">creating_job_id</span> <span class="o">=</span> <span class="n">creating_job_id</span> |
| <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">()</span> |
| |
| <div class="viewcode-block" id="DagRun.__repr__"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.__repr__">[docs]</a> <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> |
| <span class="k">return</span> <span class="p">(</span> |
| <span class="s1">'<DagRun </span><span class="si">{dag_id}</span><span class="s1"> @ </span><span class="si">{execution_date}</span><span class="s1">: </span><span class="si">{run_id}</span><span class="s1">, state:</span><span class="si">{state}</span><span class="s1">, '</span> |
| <span class="s1">'queued_at: </span><span class="si">{queued_at}</span><span class="s1">. externally triggered: </span><span class="si">{external_trigger}</span><span class="s1">>'</span> |
| <span class="p">)</span><span class="o">.</span><span class="n">format</span><span class="p">(</span> |
| <span class="n">dag_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> |
| <span class="n">execution_date</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">execution_date</span><span class="p">,</span> |
| <span class="n">run_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> |
| <span class="n">state</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">state</span><span class="p">,</span> |
| <span class="n">queued_at</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">queued_at</span><span class="p">,</span> |
| <span class="n">external_trigger</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">external_trigger</span><span class="p">,</span></div> |
| <span class="p">)</span> |
| |
| <span class="nd">@property</span> |
| <div class="viewcode-block" id="DagRun.logical_date"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.logical_date">[docs]</a> <span class="k">def</span> <span class="nf">logical_date</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="n">datetime</span><span class="p">:</span> |
| <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">execution_date</span></div> |
| |
| <div class="viewcode-block" id="DagRun.get_state"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.get_state">[docs]</a> <span class="k">def</span> <span class="nf">get_state</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> |
| <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_state</span></div> |
| |
| <div class="viewcode-block" id="DagRun.set_state"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.set_state">[docs]</a> <span class="k">def</span> <span class="nf">set_state</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">state</span><span class="p">:</span> <span class="n">DagRunState</span><span class="p">):</span> |
| <span class="k">if</span> <span class="n">state</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">State</span><span class="o">.</span><span class="n">dag_states</span><span class="p">:</span> |
| <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"invalid DagRun state: </span><span class="si">{</span><span class="n">state</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> |
| <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_state</span> <span class="o">!=</span> <span class="n">state</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">_state</span> <span class="o">=</span> <span class="n">state</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">end_date</span> <span class="o">=</span> <span class="n">timezone</span><span class="o">.</span><span class="n">utcnow</span><span class="p">()</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_state</span> <span class="ow">in</span> <span class="n">State</span><span class="o">.</span><span class="n">finished</span> <span class="k">else</span> <span class="kc">None</span> |
| <span class="k">if</span> <span class="n">state</span> <span class="o">==</span> <span class="n">State</span><span class="o">.</span><span class="n">QUEUED</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">queued_at</span> <span class="o">=</span> <span class="n">timezone</span><span class="o">.</span><span class="n">utcnow</span><span class="p">()</span></div> |
| |
| <span class="nd">@declared_attr</span> |
| <div class="viewcode-block" id="DagRun.state"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.state">[docs]</a> <span class="k">def</span> <span class="nf">state</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> |
| <span class="k">return</span> <span class="n">synonym</span><span class="p">(</span><span class="s1">'_state'</span><span class="p">,</span> <span class="n">descriptor</span><span class="o">=</span><span class="nb">property</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">get_state</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">set_state</span><span class="p">))</span></div> |
| |
| <span class="nd">@provide_session</span> |
| <div class="viewcode-block" id="DagRun.refresh_from_db"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.refresh_from_db">[docs]</a> <span class="k">def</span> <span class="nf">refresh_from_db</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">session</span><span class="p">:</span> <span class="n">Session</span> <span class="o">=</span> <span class="n">NEW_SESSION</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Reloads the current dagrun from the database</span> |
| |
| <span class="sd"> :param session: database session</span> |
| <span class="sd"> """</span> |
| <span class="n">dr</span> <span class="o">=</span> <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="n">DagRun</span><span class="p">)</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="n">DagRun</span><span class="o">.</span><span class="n">dag_id</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> <span class="n">DagRun</span><span class="o">.</span><span class="n">run_id</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">)</span><span class="o">.</span><span class="n">one</span><span class="p">()</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">id</span> <span class="o">=</span> <span class="n">dr</span><span class="o">.</span><span class="n">id</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">state</span> <span class="o">=</span> <span class="n">dr</span><span class="o">.</span><span class="n">state</span></div> |
| |
| <span class="nd">@classmethod</span> |
| <span class="nd">@provide_session</span> |
| <div class="viewcode-block" id="DagRun.active_runs_of_dags"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.active_runs_of_dags">[docs]</a> <span class="k">def</span> <span class="nf">active_runs_of_dags</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">dag_ids</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">only_running</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">session</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span> <span class="o">-></span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">int</span><span class="p">]:</span> |
| <span class="sd">"""Get the number of active dag runs for each dag."""</span> |
| <span class="n">query</span> <span class="o">=</span> <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> <span class="n">func</span><span class="o">.</span><span class="n">count</span><span class="p">(</span><span class="s1">'*'</span><span class="p">))</span> |
| <span class="k">if</span> <span class="n">dag_ids</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="c1"># 'set' called to avoid duplicate dag_ids, but converted back to 'list'</span> |
| <span class="c1"># because SQLAlchemy doesn't accept a set here.</span> |
| <span class="n">query</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">dag_id</span><span class="o">.</span><span class="n">in_</span><span class="p">(</span><span class="nb">list</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">dag_ids</span><span class="p">))))</span> |
| <span class="k">if</span> <span class="n">only_running</span><span class="p">:</span> |
| <span class="n">query</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">state</span> <span class="o">==</span> <span class="n">State</span><span class="o">.</span><span class="n">RUNNING</span><span class="p">)</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="n">query</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">state</span><span class="o">.</span><span class="n">in_</span><span class="p">([</span><span class="n">State</span><span class="o">.</span><span class="n">RUNNING</span><span class="p">,</span> <span class="n">State</span><span class="o">.</span><span class="n">QUEUED</span><span class="p">]))</span> |
| <span class="n">query</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">group_by</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">dag_id</span><span class="p">)</span> |
| <span class="k">return</span> <span class="p">{</span><span class="n">dag_id</span><span class="p">:</span> <span class="n">count</span> <span class="k">for</span> <span class="n">dag_id</span><span class="p">,</span> <span class="n">count</span> <span class="ow">in</span> <span class="n">query</span><span class="o">.</span><span class="n">all</span><span class="p">()}</span></div> |
| |
| <span class="nd">@classmethod</span> |
| <div class="viewcode-block" id="DagRun.next_dagruns_to_examine"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.next_dagruns_to_examine">[docs]</a> <span class="k">def</span> <span class="nf">next_dagruns_to_examine</span><span class="p">(</span> |
| <span class="bp">cls</span><span class="p">,</span> |
| <span class="n">state</span><span class="p">:</span> <span class="n">DagRunState</span><span class="p">,</span> |
| <span class="n">session</span><span class="p">:</span> <span class="n">Session</span><span class="p">,</span> |
| <span class="n">max_number</span><span class="p">:</span> <span class="nb">int</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="p">):</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Return the next DagRuns that the scheduler should attempt to schedule.</span> |
| |
| <span class="sd"> This will return zero or more DagRun rows that are row-level-locked with a "SELECT ... FOR UPDATE"</span> |
| <span class="sd"> query, you should ensure that any scheduling decisions are made in a single transaction -- as soon as</span> |
| <span class="sd"> the transaction is committed it will be unlocked.</span> |
| |
| <span class="sd"> :rtype: list[airflow.models.DagRun]</span> |
| <span class="sd"> """</span> |
| <span class="kn">from</span> <span class="nn">airflow.models.dag</span> <span class="kn">import</span> <span class="n">DagModel</span> |
| |
| <span class="k">if</span> <span class="n">max_number</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="n">max_number</span> <span class="o">=</span> <span class="bp">cls</span><span class="o">.</span><span class="n">DEFAULT_DAGRUNS_TO_EXAMINE</span> |
| |
| <span class="c1"># TODO: Bake this query, it is run _A lot_</span> |
| <span class="n">query</span> <span class="o">=</span> <span class="p">(</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="bp">cls</span><span class="p">)</span> |
| <span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">state</span> <span class="o">==</span> <span class="n">state</span><span class="p">,</span> <span class="bp">cls</span><span class="o">.</span><span class="n">run_type</span> <span class="o">!=</span> <span class="n">DagRunType</span><span class="o">.</span><span class="n">BACKFILL_JOB</span><span class="p">)</span> |
| <span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">DagModel</span><span class="p">,</span> <span class="n">DagModel</span><span class="o">.</span><span class="n">dag_id</span> <span class="o">==</span> <span class="bp">cls</span><span class="o">.</span><span class="n">dag_id</span><span class="p">)</span> |
| <span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="n">DagModel</span><span class="o">.</span><span class="n">is_paused</span> <span class="o">==</span> <span class="n">false</span><span class="p">(),</span> <span class="n">DagModel</span><span class="o">.</span><span class="n">is_active</span> <span class="o">==</span> <span class="n">true</span><span class="p">())</span> |
| <span class="p">)</span> |
| <span class="k">if</span> <span class="n">state</span> <span class="o">==</span> <span class="n">State</span><span class="o">.</span><span class="n">QUEUED</span><span class="p">:</span> |
| <span class="c1"># For dag runs in the queued state, we check if they have reached the max_active_runs limit</span> |
| <span class="c1"># and if so we drop them</span> |
| <span class="n">running_drs</span> <span class="o">=</span> <span class="p">(</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="n">DagRun</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> <span class="n">func</span><span class="o">.</span><span class="n">count</span><span class="p">(</span><span class="n">DagRun</span><span class="o">.</span><span class="n">state</span><span class="p">)</span><span class="o">.</span><span class="n">label</span><span class="p">(</span><span class="s1">'num_running'</span><span class="p">))</span> |
| <span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="n">DagRun</span><span class="o">.</span><span class="n">state</span> <span class="o">==</span> <span class="n">DagRunState</span><span class="o">.</span><span class="n">RUNNING</span><span class="p">)</span> |
| <span class="o">.</span><span class="n">group_by</span><span class="p">(</span><span class="n">DagRun</span><span class="o">.</span><span class="n">dag_id</span><span class="p">)</span> |
| <span class="o">.</span><span class="n">subquery</span><span class="p">()</span> |
| <span class="p">)</span> |
| <span class="n">query</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">outerjoin</span><span class="p">(</span><span class="n">running_drs</span><span class="p">,</span> <span class="n">running_drs</span><span class="o">.</span><span class="n">c</span><span class="o">.</span><span class="n">dag_id</span> <span class="o">==</span> <span class="n">DagRun</span><span class="o">.</span><span class="n">dag_id</span><span class="p">)</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span> |
| <span class="n">func</span><span class="o">.</span><span class="n">coalesce</span><span class="p">(</span><span class="n">running_drs</span><span class="o">.</span><span class="n">c</span><span class="o">.</span><span class="n">num_running</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o"><</span> <span class="n">DagModel</span><span class="o">.</span><span class="n">max_active_runs</span> |
| <span class="p">)</span> |
| <span class="n">query</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">order_by</span><span class="p">(</span> |
| <span class="n">nulls_first</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">last_scheduling_decision</span><span class="p">,</span> <span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">),</span> |
| <span class="bp">cls</span><span class="o">.</span><span class="n">execution_date</span><span class="p">,</span> |
| <span class="p">)</span> |
| |
| <span class="k">if</span> <span class="ow">not</span> <span class="n">settings</span><span class="o">.</span><span class="n">ALLOW_FUTURE_EXEC_DATES</span><span class="p">:</span> |
| <span class="n">query</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="n">DagRun</span><span class="o">.</span><span class="n">execution_date</span> <span class="o"><=</span> <span class="n">func</span><span class="o">.</span><span class="n">now</span><span class="p">())</span> |
| |
| <span class="k">return</span> <span class="n">with_row_locks</span><span class="p">(</span> |
| <span class="n">query</span><span class="o">.</span><span class="n">limit</span><span class="p">(</span><span class="n">max_number</span><span class="p">),</span> <span class="n">of</span><span class="o">=</span><span class="bp">cls</span><span class="p">,</span> <span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">,</span> <span class="o">**</span><span class="n">skip_locked</span><span class="p">(</span><span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">)</span></div> |
| <span class="p">)</span> |
| |
| <span class="nd">@classmethod</span> |
| <span class="nd">@provide_session</span> |
| <div class="viewcode-block" id="DagRun.find"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.find">[docs]</a> <span class="k">def</span> <span class="nf">find</span><span class="p">(</span> |
| <span class="bp">cls</span><span class="p">,</span> |
| <span class="n">dag_id</span><span class="p">:</span> <span class="nb">str</span> <span class="o">|</span> <span class="nb">list</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">run_id</span><span class="p">:</span> <span class="n">Iterable</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">execution_date</span><span class="p">:</span> <span class="n">datetime</span> <span class="o">|</span> <span class="n">Iterable</span><span class="p">[</span><span class="n">datetime</span><span class="p">]</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">state</span><span class="p">:</span> <span class="n">DagRunState</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">external_trigger</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">no_backfills</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span><span class="p">,</span> |
| <span class="n">run_type</span><span class="p">:</span> <span class="n">DagRunType</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">session</span><span class="p">:</span> <span class="n">Session</span> <span class="o">=</span> <span class="n">NEW_SESSION</span><span class="p">,</span> |
| <span class="n">execution_start_date</span><span class="p">:</span> <span class="n">datetime</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">execution_end_date</span><span class="p">:</span> <span class="n">datetime</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="nb">list</span><span class="p">[</span><span class="n">DagRun</span><span class="p">]:</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Returns a set of dag runs for the given search criteria.</span> |
| |
| <span class="sd"> :param dag_id: the dag_id or list of dag_id to find dag runs for</span> |
| <span class="sd"> :param run_id: defines the run id for this dag run</span> |
| <span class="sd"> :param run_type: type of DagRun</span> |
| <span class="sd"> :param execution_date: the execution date</span> |
| <span class="sd"> :param state: the state of the dag run</span> |
| <span class="sd"> :param external_trigger: whether this dag run is externally triggered</span> |
| <span class="sd"> :param no_backfills: return no backfills (True), return all (False).</span> |
| <span class="sd"> Defaults to False</span> |
| <span class="sd"> :param session: database session</span> |
| <span class="sd"> :param execution_start_date: dag run that was executed from this date</span> |
| <span class="sd"> :param execution_end_date: dag run that was executed until this date</span> |
| <span class="sd"> """</span> |
| <span class="n">qry</span> <span class="o">=</span> <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="bp">cls</span><span class="p">)</span> |
| <span class="n">dag_ids</span> <span class="o">=</span> <span class="p">[</span><span class="n">dag_id</span><span class="p">]</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">dag_id</span><span class="p">,</span> <span class="nb">str</span><span class="p">)</span> <span class="k">else</span> <span class="n">dag_id</span> |
| <span class="k">if</span> <span class="n">dag_ids</span><span class="p">:</span> |
| <span class="n">qry</span> <span class="o">=</span> <span class="n">qry</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">dag_id</span><span class="o">.</span><span class="n">in_</span><span class="p">(</span><span class="n">dag_ids</span><span class="p">))</span> |
| |
| <span class="k">if</span> <span class="n">is_container</span><span class="p">(</span><span class="n">run_id</span><span class="p">):</span> |
| <span class="n">qry</span> <span class="o">=</span> <span class="n">qry</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">run_id</span><span class="o">.</span><span class="n">in_</span><span class="p">(</span><span class="n">run_id</span><span class="p">))</span> |
| <span class="k">elif</span> <span class="n">run_id</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="n">qry</span> <span class="o">=</span> <span class="n">qry</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">run_id</span> <span class="o">==</span> <span class="n">run_id</span><span class="p">)</span> |
| <span class="k">if</span> <span class="n">is_container</span><span class="p">(</span><span class="n">execution_date</span><span class="p">):</span> |
| <span class="n">qry</span> <span class="o">=</span> <span class="n">qry</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">execution_date</span><span class="o">.</span><span class="n">in_</span><span class="p">(</span><span class="n">execution_date</span><span class="p">))</span> |
| <span class="k">elif</span> <span class="n">execution_date</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="n">qry</span> <span class="o">=</span> <span class="n">qry</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">execution_date</span> <span class="o">==</span> <span class="n">execution_date</span><span class="p">)</span> |
| <span class="k">if</span> <span class="n">execution_start_date</span> <span class="ow">and</span> <span class="n">execution_end_date</span><span class="p">:</span> |
| <span class="n">qry</span> <span class="o">=</span> <span class="n">qry</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">execution_date</span><span class="o">.</span><span class="n">between</span><span class="p">(</span><span class="n">execution_start_date</span><span class="p">,</span> <span class="n">execution_end_date</span><span class="p">))</span> |
| <span class="k">elif</span> <span class="n">execution_start_date</span><span class="p">:</span> |
| <span class="n">qry</span> <span class="o">=</span> <span class="n">qry</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">execution_date</span> <span class="o">>=</span> <span class="n">execution_start_date</span><span class="p">)</span> |
| <span class="k">elif</span> <span class="n">execution_end_date</span><span class="p">:</span> |
| <span class="n">qry</span> <span class="o">=</span> <span class="n">qry</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">execution_date</span> <span class="o"><=</span> <span class="n">execution_end_date</span><span class="p">)</span> |
| <span class="k">if</span> <span class="n">state</span><span class="p">:</span> |
| <span class="n">qry</span> <span class="o">=</span> <span class="n">qry</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">state</span> <span class="o">==</span> <span class="n">state</span><span class="p">)</span> |
| <span class="k">if</span> <span class="n">external_trigger</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="n">qry</span> <span class="o">=</span> <span class="n">qry</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">external_trigger</span> <span class="o">==</span> <span class="n">external_trigger</span><span class="p">)</span> |
| <span class="k">if</span> <span class="n">run_type</span><span class="p">:</span> |
| <span class="n">qry</span> <span class="o">=</span> <span class="n">qry</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">run_type</span> <span class="o">==</span> <span class="n">run_type</span><span class="p">)</span> |
| <span class="k">if</span> <span class="n">no_backfills</span><span class="p">:</span> |
| <span class="n">qry</span> <span class="o">=</span> <span class="n">qry</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">run_type</span> <span class="o">!=</span> <span class="n">DagRunType</span><span class="o">.</span><span class="n">BACKFILL_JOB</span><span class="p">)</span> |
| |
| <span class="k">return</span> <span class="n">qry</span><span class="o">.</span><span class="n">order_by</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">execution_date</span><span class="p">)</span><span class="o">.</span><span class="n">all</span><span class="p">()</span></div> |
| |
| <span class="nd">@classmethod</span> |
| <span class="nd">@provide_session</span> |
| <div class="viewcode-block" id="DagRun.find_duplicate"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.find_duplicate">[docs]</a> <span class="k">def</span> <span class="nf">find_duplicate</span><span class="p">(</span> |
| <span class="bp">cls</span><span class="p">,</span> |
| <span class="n">dag_id</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> |
| <span class="n">run_id</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> |
| <span class="n">execution_date</span><span class="p">:</span> <span class="n">datetime</span><span class="p">,</span> |
| <span class="n">session</span><span class="p">:</span> <span class="n">Session</span> <span class="o">=</span> <span class="n">NEW_SESSION</span><span class="p">,</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="n">DagRun</span> <span class="o">|</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Return an existing run for the DAG with a specific run_id or execution_date.</span> |
| |
| <span class="sd"> *None* is returned if no such DAG run is found.</span> |
| |
| <span class="sd"> :param dag_id: the dag_id to find duplicates for</span> |
| <span class="sd"> :param run_id: defines the run id for this dag run</span> |
| <span class="sd"> :param execution_date: the execution date</span> |
| <span class="sd"> :param session: database session</span> |
| <span class="sd"> """</span> |
| <span class="k">return</span> <span class="p">(</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="bp">cls</span><span class="p">)</span> |
| <span class="o">.</span><span class="n">filter</span><span class="p">(</span> |
| <span class="bp">cls</span><span class="o">.</span><span class="n">dag_id</span> <span class="o">==</span> <span class="n">dag_id</span><span class="p">,</span> |
| <span class="n">or_</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">run_id</span> <span class="o">==</span> <span class="n">run_id</span><span class="p">,</span> <span class="bp">cls</span><span class="o">.</span><span class="n">execution_date</span> <span class="o">==</span> <span class="n">execution_date</span><span class="p">),</span></div> |
| <span class="p">)</span> |
| <span class="o">.</span><span class="n">one_or_none</span><span class="p">()</span> |
| <span class="p">)</span> |
| |
| <span class="nd">@staticmethod</span> |
| <div class="viewcode-block" id="DagRun.generate_run_id"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.generate_run_id">[docs]</a> <span class="k">def</span> <span class="nf">generate_run_id</span><span class="p">(</span><span class="n">run_type</span><span class="p">:</span> <span class="n">DagRunType</span><span class="p">,</span> <span class="n">execution_date</span><span class="p">:</span> <span class="n">datetime</span><span class="p">)</span> <span class="o">-></span> <span class="nb">str</span><span class="p">:</span> |
| <span class="sd">"""Generate Run ID based on Run Type and Execution Date"""</span> |
| <span class="c1"># _Ensure_ run_type is a DagRunType, not just a string from user code</span> |
| <span class="k">return</span> <span class="n">DagRunType</span><span class="p">(</span><span class="n">run_type</span><span class="p">)</span><span class="o">.</span><span class="n">generate_run_id</span><span class="p">(</span><span class="n">execution_date</span><span class="p">)</span></div> |
| |
| <span class="nd">@provide_session</span> |
| <div class="viewcode-block" id="DagRun.get_task_instances"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.get_task_instances">[docs]</a> <span class="k">def</span> <span class="nf">get_task_instances</span><span class="p">(</span> |
| <span class="bp">self</span><span class="p">,</span> |
| <span class="n">state</span><span class="p">:</span> <span class="n">Iterable</span><span class="p">[</span><span class="n">TaskInstanceState</span> <span class="o">|</span> <span class="kc">None</span><span class="p">]</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="n">session</span><span class="p">:</span> <span class="n">Session</span> <span class="o">=</span> <span class="n">NEW_SESSION</span><span class="p">,</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="nb">list</span><span class="p">[</span><span class="n">TI</span><span class="p">]:</span> |
| <span class="sd">"""Returns the task instances for this dag run"""</span> |
| <span class="n">tis</span> <span class="o">=</span> <span class="p">(</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="n">TI</span><span class="p">)</span> |
| <span class="o">.</span><span class="n">options</span><span class="p">(</span><span class="n">joinedload</span><span class="p">(</span><span class="n">TI</span><span class="o">.</span><span class="n">dag_run</span><span class="p">))</span> |
| <span class="o">.</span><span class="n">filter</span><span class="p">(</span> |
| <span class="n">TI</span><span class="o">.</span><span class="n">dag_id</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> |
| <span class="n">TI</span><span class="o">.</span><span class="n">run_id</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> |
| <span class="p">)</span> |
| <span class="p">)</span> |
| |
| <span class="k">if</span> <span class="n">state</span><span class="p">:</span> |
| <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">state</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span> |
| <span class="n">tis</span> <span class="o">=</span> <span class="n">tis</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="n">TI</span><span class="o">.</span><span class="n">state</span> <span class="o">==</span> <span class="n">state</span><span class="p">)</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="c1"># this is required to deal with NULL values</span> |
| <span class="k">if</span> <span class="n">State</span><span class="o">.</span><span class="n">NONE</span> <span class="ow">in</span> <span class="n">state</span><span class="p">:</span> |
| <span class="k">if</span> <span class="nb">all</span><span class="p">(</span><span class="n">x</span> <span class="ow">is</span> <span class="kc">None</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">state</span><span class="p">):</span> |
| <span class="n">tis</span> <span class="o">=</span> <span class="n">tis</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="n">TI</span><span class="o">.</span><span class="n">state</span><span class="o">.</span><span class="n">is_</span><span class="p">(</span><span class="kc">None</span><span class="p">))</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="n">not_none_state</span> <span class="o">=</span> <span class="p">[</span><span class="n">s</span> <span class="k">for</span> <span class="n">s</span> <span class="ow">in</span> <span class="n">state</span> <span class="k">if</span> <span class="n">s</span><span class="p">]</span> |
| <span class="n">tis</span> <span class="o">=</span> <span class="n">tis</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="n">or_</span><span class="p">(</span><span class="n">TI</span><span class="o">.</span><span class="n">state</span><span class="o">.</span><span class="n">in_</span><span class="p">(</span><span class="n">not_none_state</span><span class="p">),</span> <span class="n">TI</span><span class="o">.</span><span class="n">state</span><span class="o">.</span><span class="n">is_</span><span class="p">(</span><span class="kc">None</span><span class="p">)))</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="n">tis</span> <span class="o">=</span> <span class="n">tis</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="n">TI</span><span class="o">.</span><span class="n">state</span><span class="o">.</span><span class="n">in_</span><span class="p">(</span><span class="n">state</span><span class="p">))</span> |
| |
| <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">dag</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">dag</span><span class="o">.</span><span class="n">partial</span><span class="p">:</span> |
| <span class="n">tis</span> <span class="o">=</span> <span class="n">tis</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="n">TI</span><span class="o">.</span><span class="n">task_id</span><span class="o">.</span><span class="n">in_</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">dag</span><span class="o">.</span><span class="n">task_ids</span><span class="p">))</span> |
| <span class="k">return</span> <span class="n">tis</span><span class="o">.</span><span class="n">all</span><span class="p">()</span></div> |
| |
| <span class="nd">@provide_session</span> |
| <div class="viewcode-block" id="DagRun.get_task_instance"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.get_task_instance">[docs]</a> <span class="k">def</span> <span class="nf">get_task_instance</span><span class="p">(</span> |
| <span class="bp">self</span><span class="p">,</span> |
| <span class="n">task_id</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> |
| <span class="n">session</span><span class="p">:</span> <span class="n">Session</span> <span class="o">=</span> <span class="n">NEW_SESSION</span><span class="p">,</span> |
| <span class="o">*</span><span class="p">,</span> |
| <span class="n">map_index</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="n">TI</span> <span class="o">|</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Returns the task instance specified by task_id for this dag run</span> |
| |
| <span class="sd"> :param task_id: the task id</span> |
| <span class="sd"> :param session: Sqlalchemy ORM Session</span> |
| <span class="sd"> """</span> |
| <span class="k">return</span> <span class="p">(</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="n">TI</span><span class="p">)</span> |
| <span class="o">.</span><span class="n">filter_by</span><span class="p">(</span><span class="n">dag_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> <span class="n">run_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> <span class="n">task_id</span><span class="o">=</span><span class="n">task_id</span><span class="p">,</span> <span class="n">map_index</span><span class="o">=</span><span class="n">map_index</span><span class="p">)</span></div> |
| <span class="o">.</span><span class="n">one_or_none</span><span class="p">()</span> |
| <span class="p">)</span> |
| |
| <div class="viewcode-block" id="DagRun.get_dag"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.get_dag">[docs]</a> <span class="k">def</span> <span class="nf">get_dag</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="n">DAG</span><span class="p">:</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Returns the Dag associated with this DagRun.</span> |
| |
| <span class="sd"> :return: DAG</span> |
| <span class="sd"> """</span> |
| <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">dag</span><span class="p">:</span> |
| <span class="k">raise</span> <span class="n">AirflowException</span><span class="p">(</span><span class="sa">f</span><span class="s2">"The DAG (.dag) for </span><span class="si">{</span><span class="bp">self</span><span class="si">}</span><span class="s2"> needs to be set"</span><span class="p">)</span> |
| |
| <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">dag</span></div> |
| |
| <span class="nd">@provide_session</span> |
| <div class="viewcode-block" id="DagRun.get_previous_dagrun"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.get_previous_dagrun">[docs]</a> <span class="k">def</span> <span class="nf">get_previous_dagrun</span><span class="p">(</span> |
| <span class="bp">self</span><span class="p">,</span> <span class="n">state</span><span class="p">:</span> <span class="n">DagRunState</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> <span class="n">session</span><span class="p">:</span> <span class="n">Session</span> <span class="o">=</span> <span class="n">NEW_SESSION</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="n">DagRun</span> <span class="o">|</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="sd">"""The previous DagRun, if there is one"""</span> |
| <span class="n">filters</span> <span class="o">=</span> <span class="p">[</span> |
| <span class="n">DagRun</span><span class="o">.</span><span class="n">dag_id</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> |
| <span class="n">DagRun</span><span class="o">.</span><span class="n">execution_date</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">execution_date</span><span class="p">,</span> |
| <span class="p">]</span> |
| <span class="k">if</span> <span class="n">state</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="n">filters</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">DagRun</span><span class="o">.</span><span class="n">state</span> <span class="o">==</span> <span class="n">state</span><span class="p">)</span> |
| <span class="k">return</span> <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="n">DagRun</span><span class="p">)</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="o">*</span><span class="n">filters</span><span class="p">)</span><span class="o">.</span><span class="n">order_by</span><span class="p">(</span><span class="n">DagRun</span><span class="o">.</span><span class="n">execution_date</span><span class="o">.</span><span class="n">desc</span><span class="p">())</span><span class="o">.</span><span class="n">first</span><span class="p">()</span></div> |
| |
| <span class="nd">@provide_session</span> |
| <div class="viewcode-block" id="DagRun.get_previous_scheduled_dagrun"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.get_previous_scheduled_dagrun">[docs]</a> <span class="k">def</span> <span class="nf">get_previous_scheduled_dagrun</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">session</span><span class="p">:</span> <span class="n">Session</span> <span class="o">=</span> <span class="n">NEW_SESSION</span><span class="p">)</span> <span class="o">-></span> <span class="n">DagRun</span> <span class="o">|</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="sd">"""The previous, SCHEDULED DagRun, if there is one"""</span> |
| <span class="k">return</span> <span class="p">(</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="n">DagRun</span><span class="p">)</span> |
| <span class="o">.</span><span class="n">filter</span><span class="p">(</span> |
| <span class="n">DagRun</span><span class="o">.</span><span class="n">dag_id</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> |
| <span class="n">DagRun</span><span class="o">.</span><span class="n">execution_date</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">execution_date</span><span class="p">,</span> |
| <span class="n">DagRun</span><span class="o">.</span><span class="n">run_type</span> <span class="o">!=</span> <span class="n">DagRunType</span><span class="o">.</span><span class="n">MANUAL</span><span class="p">,</span> |
| <span class="p">)</span> |
| <span class="o">.</span><span class="n">order_by</span><span class="p">(</span><span class="n">DagRun</span><span class="o">.</span><span class="n">execution_date</span><span class="o">.</span><span class="n">desc</span><span class="p">())</span></div> |
| <span class="o">.</span><span class="n">first</span><span class="p">()</span> |
| <span class="p">)</span> |
| |
| <span class="nd">@provide_session</span> |
| <div class="viewcode-block" id="DagRun.update_state"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.update_state">[docs]</a> <span class="k">def</span> <span class="nf">update_state</span><span class="p">(</span> |
| <span class="bp">self</span><span class="p">,</span> <span class="n">session</span><span class="p">:</span> <span class="n">Session</span> <span class="o">=</span> <span class="n">NEW_SESSION</span><span class="p">,</span> <span class="n">execute_callbacks</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">True</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="nb">tuple</span><span class="p">[</span><span class="nb">list</span><span class="p">[</span><span class="n">TI</span><span class="p">],</span> <span class="n">DagCallbackRequest</span> <span class="o">|</span> <span class="kc">None</span><span class="p">]:</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Determines the overall state of the DagRun based on the state</span> |
| <span class="sd"> of its TaskInstances.</span> |
| |
| <span class="sd"> :param session: Sqlalchemy ORM Session</span> |
| <span class="sd"> :param execute_callbacks: Should dag callbacks (success/failure, SLA etc) be invoked</span> |
| <span class="sd"> directly (default: true) or recorded as a pending request in the ``callback`` property</span> |
| <span class="sd"> :return: Tuple containing tis that can be scheduled in the current loop & `callback` that</span> |
| <span class="sd"> needs to be executed</span> |
| <span class="sd"> """</span> |
| <span class="c1"># Callback to execute in case of Task Failures</span> |
| <span class="n">callback</span><span class="p">:</span> <span class="n">DagCallbackRequest</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span> |
| |
| <span class="k">class</span> <span class="nc">_UnfinishedStates</span><span class="p">(</span><span class="n">NamedTuple</span><span class="p">):</span> |
| <span class="n">tis</span><span class="p">:</span> <span class="n">Sequence</span><span class="p">[</span><span class="n">TI</span><span class="p">]</span> |
| |
| <span class="nd">@classmethod</span> |
| <span class="k">def</span> <span class="nf">calculate</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">unfinished_tis</span><span class="p">:</span> <span class="n">Sequence</span><span class="p">[</span><span class="n">TI</span><span class="p">])</span> <span class="o">-></span> <span class="n">_UnfinishedStates</span><span class="p">:</span> |
| <span class="k">return</span> <span class="bp">cls</span><span class="p">(</span><span class="n">tis</span><span class="o">=</span><span class="n">unfinished_tis</span><span class="p">)</span> |
| |
| <span class="nd">@property</span> |
| <span class="k">def</span> <span class="nf">should_schedule</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> |
| <span class="k">return</span> <span class="p">(</span> |
| <span class="nb">bool</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">tis</span><span class="p">)</span> |
| <span class="ow">and</span> <span class="nb">all</span><span class="p">(</span><span class="ow">not</span> <span class="n">t</span><span class="o">.</span><span class="n">task</span><span class="o">.</span><span class="n">depends_on_past</span> <span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">tis</span><span class="p">)</span> |
| <span class="ow">and</span> <span class="nb">all</span><span class="p">(</span><span class="n">t</span><span class="o">.</span><span class="n">task</span><span class="o">.</span><span class="n">max_active_tis_per_dag</span> <span class="ow">is</span> <span class="kc">None</span> <span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">tis</span><span class="p">)</span> |
| <span class="ow">and</span> <span class="nb">all</span><span class="p">(</span><span class="n">t</span><span class="o">.</span><span class="n">state</span> <span class="o">!=</span> <span class="n">TaskInstanceState</span><span class="o">.</span><span class="n">DEFERRED</span> <span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">tis</span><span class="p">)</span> |
| <span class="p">)</span> |
| |
| <span class="k">def</span> <span class="nf">recalculate</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="n">_UnfinishedStates</span><span class="p">:</span> |
| <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_replace</span><span class="p">(</span><span class="n">tis</span><span class="o">=</span><span class="p">[</span><span class="n">t</span> <span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">tis</span> <span class="k">if</span> <span class="n">t</span><span class="o">.</span><span class="n">state</span> <span class="ow">in</span> <span class="n">State</span><span class="o">.</span><span class="n">unfinished</span><span class="p">])</span> |
| |
| <span class="n">start_dttm</span> <span class="o">=</span> <span class="n">timezone</span><span class="o">.</span><span class="n">utcnow</span><span class="p">()</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">last_scheduling_decision</span> <span class="o">=</span> <span class="n">start_dttm</span> |
| <span class="k">with</span> <span class="n">Stats</span><span class="o">.</span><span class="n">timer</span><span class="p">(</span><span class="sa">f</span><span class="s2">"dagrun.dependency-check.</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span><span class="si">}</span><span class="s2">"</span><span class="p">):</span> |
| <span class="n">dag</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_dag</span><span class="p">()</span> |
| <span class="n">info</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">task_instance_scheduling_decisions</span><span class="p">(</span><span class="n">session</span><span class="p">)</span> |
| |
| <span class="n">tis</span> <span class="o">=</span> <span class="n">info</span><span class="o">.</span><span class="n">tis</span> |
| <span class="n">schedulable_tis</span> <span class="o">=</span> <span class="n">info</span><span class="o">.</span><span class="n">schedulable_tis</span> |
| <span class="n">changed_tis</span> <span class="o">=</span> <span class="n">info</span><span class="o">.</span><span class="n">changed_tis</span> |
| <span class="n">finished_tis</span> <span class="o">=</span> <span class="n">info</span><span class="o">.</span><span class="n">finished_tis</span> |
| <span class="n">unfinished</span> <span class="o">=</span> <span class="n">_UnfinishedStates</span><span class="o">.</span><span class="n">calculate</span><span class="p">(</span><span class="n">info</span><span class="o">.</span><span class="n">unfinished_tis</span><span class="p">)</span> |
| |
| <span class="k">if</span> <span class="n">unfinished</span><span class="o">.</span><span class="n">should_schedule</span><span class="p">:</span> |
| <span class="n">are_runnable_tasks</span> <span class="o">=</span> <span class="n">schedulable_tis</span> <span class="ow">or</span> <span class="n">changed_tis</span> |
| <span class="c1"># small speed up</span> |
| <span class="k">if</span> <span class="ow">not</span> <span class="n">are_runnable_tasks</span><span class="p">:</span> |
| <span class="n">are_runnable_tasks</span><span class="p">,</span> <span class="n">changed_by_upstream</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_are_premature_tis</span><span class="p">(</span> |
| <span class="n">unfinished</span><span class="o">.</span><span class="n">tis</span><span class="p">,</span> <span class="n">finished_tis</span><span class="p">,</span> <span class="n">session</span> |
| <span class="p">)</span> |
| <span class="k">if</span> <span class="n">changed_by_upstream</span><span class="p">:</span> <span class="c1"># Something changed, we need to recalculate!</span> |
| <span class="n">unfinished</span> <span class="o">=</span> <span class="n">unfinished</span><span class="o">.</span><span class="n">recalculate</span><span class="p">()</span> |
| |
| <span class="n">leaf_task_ids</span> <span class="o">=</span> <span class="p">{</span><span class="n">t</span><span class="o">.</span><span class="n">task_id</span> <span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="n">dag</span><span class="o">.</span><span class="n">leaves</span><span class="p">}</span> |
| <span class="n">leaf_tis</span> <span class="o">=</span> <span class="p">[</span><span class="n">ti</span> <span class="k">for</span> <span class="n">ti</span> <span class="ow">in</span> <span class="n">tis</span> <span class="k">if</span> <span class="n">ti</span><span class="o">.</span><span class="n">task_id</span> <span class="ow">in</span> <span class="n">leaf_task_ids</span> <span class="k">if</span> <span class="n">ti</span><span class="o">.</span><span class="n">state</span> <span class="o">!=</span> <span class="n">TaskInstanceState</span><span class="o">.</span><span class="n">REMOVED</span><span class="p">]</span> |
| |
| <span class="c1"># if all roots finished and at least one failed, the run failed</span> |
| <span class="k">if</span> <span class="ow">not</span> <span class="n">unfinished</span><span class="o">.</span><span class="n">tis</span> <span class="ow">and</span> <span class="nb">any</span><span class="p">(</span><span class="n">leaf_ti</span><span class="o">.</span><span class="n">state</span> <span class="ow">in</span> <span class="n">State</span><span class="o">.</span><span class="n">failed_states</span> <span class="k">for</span> <span class="n">leaf_ti</span> <span class="ow">in</span> <span class="n">leaf_tis</span><span class="p">):</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">'Marking run </span><span class="si">%s</span><span class="s1"> failed'</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">set_state</span><span class="p">(</span><span class="n">DagRunState</span><span class="o">.</span><span class="n">FAILED</span><span class="p">)</span> |
| <span class="k">if</span> <span class="n">execute_callbacks</span><span class="p">:</span> |
| <span class="n">dag</span><span class="o">.</span><span class="n">handle_callback</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">success</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">reason</span><span class="o">=</span><span class="s1">'task_failure'</span><span class="p">,</span> <span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">)</span> |
| <span class="k">elif</span> <span class="n">dag</span><span class="o">.</span><span class="n">has_on_failure_callback</span><span class="p">:</span> |
| <span class="kn">from</span> <span class="nn">airflow.models.dag</span> <span class="kn">import</span> <span class="n">DagModel</span> |
| |
| <span class="n">dag_model</span> <span class="o">=</span> <span class="n">DagModel</span><span class="o">.</span><span class="n">get_dagmodel</span><span class="p">(</span><span class="n">dag</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> <span class="n">session</span><span class="p">)</span> |
| <span class="n">callback</span> <span class="o">=</span> <span class="n">DagCallbackRequest</span><span class="p">(</span> |
| <span class="n">full_filepath</span><span class="o">=</span><span class="n">dag</span><span class="o">.</span><span class="n">fileloc</span><span class="p">,</span> |
| <span class="n">dag_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> |
| <span class="n">run_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> |
| <span class="n">is_failure_callback</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> |
| <span class="n">processor_subdir</span><span class="o">=</span><span class="n">dag_model</span><span class="o">.</span><span class="n">processor_subdir</span><span class="p">,</span> |
| <span class="n">msg</span><span class="o">=</span><span class="s1">'task_failure'</span><span class="p">,</span> |
| <span class="p">)</span> |
| |
| <span class="c1"># if all leaves succeeded and no unfinished tasks, the run succeeded</span> |
| <span class="k">elif</span> <span class="ow">not</span> <span class="n">unfinished</span><span class="o">.</span><span class="n">tis</span> <span class="ow">and</span> <span class="nb">all</span><span class="p">(</span><span class="n">leaf_ti</span><span class="o">.</span><span class="n">state</span> <span class="ow">in</span> <span class="n">State</span><span class="o">.</span><span class="n">success_states</span> <span class="k">for</span> <span class="n">leaf_ti</span> <span class="ow">in</span> <span class="n">leaf_tis</span><span class="p">):</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'Marking run </span><span class="si">%s</span><span class="s1"> successful'</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">set_state</span><span class="p">(</span><span class="n">DagRunState</span><span class="o">.</span><span class="n">SUCCESS</span><span class="p">)</span> |
| <span class="k">if</span> <span class="n">execute_callbacks</span><span class="p">:</span> |
| <span class="n">dag</span><span class="o">.</span><span class="n">handle_callback</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">success</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">reason</span><span class="o">=</span><span class="s1">'success'</span><span class="p">,</span> <span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">)</span> |
| <span class="k">elif</span> <span class="n">dag</span><span class="o">.</span><span class="n">has_on_success_callback</span><span class="p">:</span> |
| <span class="kn">from</span> <span class="nn">airflow.models.dag</span> <span class="kn">import</span> <span class="n">DagModel</span> |
| |
| <span class="n">dag_model</span> <span class="o">=</span> <span class="n">DagModel</span><span class="o">.</span><span class="n">get_dagmodel</span><span class="p">(</span><span class="n">dag</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> <span class="n">session</span><span class="p">)</span> |
| <span class="n">callback</span> <span class="o">=</span> <span class="n">DagCallbackRequest</span><span class="p">(</span> |
| <span class="n">full_filepath</span><span class="o">=</span><span class="n">dag</span><span class="o">.</span><span class="n">fileloc</span><span class="p">,</span> |
| <span class="n">dag_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> |
| <span class="n">run_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> |
| <span class="n">is_failure_callback</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> |
| <span class="n">processor_subdir</span><span class="o">=</span><span class="n">dag_model</span><span class="o">.</span><span class="n">processor_subdir</span><span class="p">,</span> |
| <span class="n">msg</span><span class="o">=</span><span class="s1">'success'</span><span class="p">,</span> |
| <span class="p">)</span> |
| |
| <span class="c1"># if *all tasks* are deadlocked, the run failed</span> |
| <span class="k">elif</span> <span class="n">unfinished</span><span class="o">.</span><span class="n">should_schedule</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">are_runnable_tasks</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">'Deadlock; marking run </span><span class="si">%s</span><span class="s1"> failed'</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">set_state</span><span class="p">(</span><span class="n">DagRunState</span><span class="o">.</span><span class="n">FAILED</span><span class="p">)</span> |
| <span class="k">if</span> <span class="n">execute_callbacks</span><span class="p">:</span> |
| <span class="n">dag</span><span class="o">.</span><span class="n">handle_callback</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">success</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">reason</span><span class="o">=</span><span class="s1">'all_tasks_deadlocked'</span><span class="p">,</span> <span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">)</span> |
| <span class="k">elif</span> <span class="n">dag</span><span class="o">.</span><span class="n">has_on_failure_callback</span><span class="p">:</span> |
| <span class="kn">from</span> <span class="nn">airflow.models.dag</span> <span class="kn">import</span> <span class="n">DagModel</span> |
| |
| <span class="n">dag_model</span> <span class="o">=</span> <span class="n">DagModel</span><span class="o">.</span><span class="n">get_dagmodel</span><span class="p">(</span><span class="n">dag</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> <span class="n">session</span><span class="p">)</span> |
| <span class="n">callback</span> <span class="o">=</span> <span class="n">DagCallbackRequest</span><span class="p">(</span> |
| <span class="n">full_filepath</span><span class="o">=</span><span class="n">dag</span><span class="o">.</span><span class="n">fileloc</span><span class="p">,</span> |
| <span class="n">dag_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> |
| <span class="n">run_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> |
| <span class="n">is_failure_callback</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> |
| <span class="n">processor_subdir</span><span class="o">=</span><span class="n">dag_model</span><span class="o">.</span><span class="n">processor_subdir</span><span class="p">,</span> |
| <span class="n">msg</span><span class="o">=</span><span class="s1">'all_tasks_deadlocked'</span><span class="p">,</span> |
| <span class="p">)</span> |
| |
| <span class="c1"># finally, if the roots aren't done, the dag is still running</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">set_state</span><span class="p">(</span><span class="n">DagRunState</span><span class="o">.</span><span class="n">RUNNING</span><span class="p">)</span> |
| |
| <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_state</span> <span class="o">==</span> <span class="n">DagRunState</span><span class="o">.</span><span class="n">FAILED</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">_state</span> <span class="o">==</span> <span class="n">DagRunState</span><span class="o">.</span><span class="n">SUCCESS</span><span class="p">:</span> |
| <span class="n">msg</span> <span class="o">=</span> <span class="p">(</span> |
| <span class="s2">"DagRun Finished: dag_id=</span><span class="si">%s</span><span class="s2">, execution_date=</span><span class="si">%s</span><span class="s2">, run_id=</span><span class="si">%s</span><span class="s2">, "</span> |
| <span class="s2">"run_start_date=</span><span class="si">%s</span><span class="s2">, run_end_date=</span><span class="si">%s</span><span class="s2">, run_duration=</span><span class="si">%s</span><span class="s2">, "</span> |
| <span class="s2">"state=</span><span class="si">%s</span><span class="s2">, external_trigger=</span><span class="si">%s</span><span class="s2">, run_type=</span><span class="si">%s</span><span class="s2">, "</span> |
| <span class="s2">"data_interval_start=</span><span class="si">%s</span><span class="s2">, data_interval_end=</span><span class="si">%s</span><span class="s2">, dag_hash=</span><span class="si">%s</span><span class="s2">"</span> |
| <span class="p">)</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span> |
| <span class="n">msg</span><span class="p">,</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">execution_date</span><span class="p">,</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">start_date</span><span class="p">,</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">end_date</span><span class="p">,</span> |
| <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">end_date</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">start_date</span><span class="p">)</span><span class="o">.</span><span class="n">total_seconds</span><span class="p">()</span> |
| <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">start_date</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">end_date</span> |
| <span class="k">else</span> <span class="kc">None</span><span class="p">,</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">_state</span><span class="p">,</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">external_trigger</span><span class="p">,</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">run_type</span><span class="p">,</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">data_interval_start</span><span class="p">,</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">data_interval_end</span><span class="p">,</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">dag_hash</span><span class="p">,</span> |
| <span class="p">)</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">flush</span><span class="p">()</span> |
| |
| <span class="bp">self</span><span class="o">.</span><span class="n">_emit_true_scheduling_delay_stats_for_finished_state</span><span class="p">(</span><span class="n">finished_tis</span><span class="p">)</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">_emit_duration_stats_for_finished_state</span><span class="p">()</span> |
| |
| <span class="n">session</span><span class="o">.</span><span class="n">merge</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> |
| <span class="c1"># We do not flush here for performance reasons(It increases queries count by +20)</span> |
| |
| <span class="k">return</span> <span class="n">schedulable_tis</span><span class="p">,</span> <span class="n">callback</span></div> |
| |
| <span class="nd">@provide_session</span> |
| <div class="viewcode-block" id="DagRun.task_instance_scheduling_decisions"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.task_instance_scheduling_decisions">[docs]</a> <span class="k">def</span> <span class="nf">task_instance_scheduling_decisions</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">session</span><span class="p">:</span> <span class="n">Session</span> <span class="o">=</span> <span class="n">NEW_SESSION</span><span class="p">)</span> <span class="o">-></span> <span class="n">TISchedulingDecision</span><span class="p">:</span> |
| <span class="n">tis</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_task_instances</span><span class="p">(</span><span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">,</span> <span class="n">state</span><span class="o">=</span><span class="n">State</span><span class="o">.</span><span class="n">task_states</span><span class="p">)</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">"number of tis tasks for </span><span class="si">%s</span><span class="s2">: </span><span class="si">%s</span><span class="s2"> task(s)"</span><span class="p">,</span> <span class="bp">self</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">tis</span><span class="p">))</span> |
| |
| <span class="k">def</span> <span class="nf">_filter_tis_and_exclude_removed</span><span class="p">(</span><span class="n">dag</span><span class="p">:</span> <span class="n">DAG</span><span class="p">,</span> <span class="n">tis</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="n">TI</span><span class="p">])</span> <span class="o">-></span> <span class="n">Iterable</span><span class="p">[</span><span class="n">TI</span><span class="p">]:</span> |
| <span class="sd">"""Populate ``ti.task`` while excluding those missing one, marking them as REMOVED."""</span> |
| <span class="k">for</span> <span class="n">ti</span> <span class="ow">in</span> <span class="n">tis</span><span class="p">:</span> |
| <span class="k">try</span><span class="p">:</span> |
| <span class="n">ti</span><span class="o">.</span><span class="n">task</span> <span class="o">=</span> <span class="n">dag</span><span class="o">.</span><span class="n">get_task</span><span class="p">(</span><span class="n">ti</span><span class="o">.</span><span class="n">task_id</span><span class="p">)</span> |
| <span class="k">except</span> <span class="n">TaskNotFound</span><span class="p">:</span> |
| <span class="k">if</span> <span class="n">ti</span><span class="o">.</span><span class="n">state</span> <span class="o">!=</span> <span class="n">State</span><span class="o">.</span><span class="n">REMOVED</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s2">"Failed to get task for ti </span><span class="si">%s</span><span class="s2">. Marking it as removed."</span><span class="p">,</span> <span class="n">ti</span><span class="p">)</span> |
| <span class="n">ti</span><span class="o">.</span><span class="n">state</span> <span class="o">=</span> <span class="n">State</span><span class="o">.</span><span class="n">REMOVED</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">flush</span><span class="p">()</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="k">yield</span> <span class="n">ti</span> |
| |
| <span class="n">tis</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">_filter_tis_and_exclude_removed</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">get_dag</span><span class="p">(),</span> <span class="n">tis</span><span class="p">))</span> |
| |
| <span class="n">unfinished_tis</span> <span class="o">=</span> <span class="p">[</span><span class="n">t</span> <span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="n">tis</span> <span class="k">if</span> <span class="n">t</span><span class="o">.</span><span class="n">state</span> <span class="ow">in</span> <span class="n">State</span><span class="o">.</span><span class="n">unfinished</span><span class="p">]</span> |
| <span class="n">finished_tis</span> <span class="o">=</span> <span class="p">[</span><span class="n">t</span> <span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="n">tis</span> <span class="k">if</span> <span class="n">t</span><span class="o">.</span><span class="n">state</span> <span class="ow">in</span> <span class="n">State</span><span class="o">.</span><span class="n">finished</span><span class="p">]</span> |
| <span class="k">if</span> <span class="n">unfinished_tis</span><span class="p">:</span> |
| <span class="n">schedulable_tis</span> <span class="o">=</span> <span class="p">[</span><span class="n">ut</span> <span class="k">for</span> <span class="n">ut</span> <span class="ow">in</span> <span class="n">unfinished_tis</span> <span class="k">if</span> <span class="n">ut</span><span class="o">.</span><span class="n">state</span> <span class="ow">in</span> <span class="n">SCHEDULEABLE_STATES</span><span class="p">]</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">"number of scheduleable tasks for </span><span class="si">%s</span><span class="s2">: </span><span class="si">%s</span><span class="s2"> task(s)"</span><span class="p">,</span> <span class="bp">self</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">schedulable_tis</span><span class="p">))</span> |
| <span class="n">schedulable_tis</span><span class="p">,</span> <span class="n">changed_tis</span><span class="p">,</span> <span class="n">expansion_happened</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_ready_tis</span><span class="p">(</span> |
| <span class="n">schedulable_tis</span><span class="p">,</span> |
| <span class="n">finished_tis</span><span class="p">,</span> |
| <span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">,</span> |
| <span class="p">)</span> |
| |
| <span class="c1"># During expansion we may change some tis into non-schedulable</span> |
| <span class="c1"># states, so we need to re-compute.</span> |
| <span class="k">if</span> <span class="n">expansion_happened</span><span class="p">:</span> |
| <span class="n">new_unfinished_tis</span> <span class="o">=</span> <span class="p">[</span><span class="n">t</span> <span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="n">unfinished_tis</span> <span class="k">if</span> <span class="n">t</span><span class="o">.</span><span class="n">state</span> <span class="ow">in</span> <span class="n">State</span><span class="o">.</span><span class="n">unfinished</span><span class="p">]</span> |
| <span class="n">finished_tis</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">t</span> <span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="n">unfinished_tis</span> <span class="k">if</span> <span class="n">t</span><span class="o">.</span><span class="n">state</span> <span class="ow">in</span> <span class="n">State</span><span class="o">.</span><span class="n">finished</span><span class="p">)</span> |
| <span class="n">unfinished_tis</span> <span class="o">=</span> <span class="n">new_unfinished_tis</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="n">schedulable_tis</span> <span class="o">=</span> <span class="p">[]</span> |
| <span class="n">changed_tis</span> <span class="o">=</span> <span class="kc">False</span> |
| |
| <span class="k">return</span> <span class="n">TISchedulingDecision</span><span class="p">(</span> |
| <span class="n">tis</span><span class="o">=</span><span class="n">tis</span><span class="p">,</span> |
| <span class="n">schedulable_tis</span><span class="o">=</span><span class="n">schedulable_tis</span><span class="p">,</span> |
| <span class="n">changed_tis</span><span class="o">=</span><span class="n">changed_tis</span><span class="p">,</span> |
| <span class="n">unfinished_tis</span><span class="o">=</span><span class="n">unfinished_tis</span><span class="p">,</span> |
| <span class="n">finished_tis</span><span class="o">=</span><span class="n">finished_tis</span><span class="p">,</span></div> |
| <span class="p">)</span> |
| |
| <span class="k">def</span> <span class="nf">_get_ready_tis</span><span class="p">(</span> |
| <span class="bp">self</span><span class="p">,</span> |
| <span class="n">schedulable_tis</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="n">TI</span><span class="p">],</span> |
| <span class="n">finished_tis</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="n">TI</span><span class="p">],</span> |
| <span class="n">session</span><span class="p">:</span> <span class="n">Session</span><span class="p">,</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="nb">tuple</span><span class="p">[</span><span class="nb">list</span><span class="p">[</span><span class="n">TI</span><span class="p">],</span> <span class="nb">bool</span><span class="p">,</span> <span class="nb">bool</span><span class="p">]:</span> |
| <span class="n">old_states</span> <span class="o">=</span> <span class="p">{}</span> |
| <span class="n">ready_tis</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="n">TI</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span> |
| <span class="n">changed_tis</span> <span class="o">=</span> <span class="kc">False</span> |
| |
| <span class="k">if</span> <span class="ow">not</span> <span class="n">schedulable_tis</span><span class="p">:</span> |
| <span class="k">return</span> <span class="n">ready_tis</span><span class="p">,</span> <span class="n">changed_tis</span><span class="p">,</span> <span class="kc">False</span> |
| |
| <span class="c1"># If we expand TIs, we need a new list so that we iterate over them too. (We can't alter</span> |
| <span class="c1"># `schedulable_tis` in place and have the `for` loop pick them up</span> |
| <span class="n">additional_tis</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="n">TI</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span> |
| <span class="n">dep_context</span> <span class="o">=</span> <span class="n">DepContext</span><span class="p">(</span> |
| <span class="n">flag_upstream_failed</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> |
| <span class="n">ignore_unmapped_tasks</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="c1"># Ignore this Dep, as we will expand it if we can.</span> |
| <span class="n">finished_tis</span><span class="o">=</span><span class="n">finished_tis</span><span class="p">,</span> |
| <span class="p">)</span> |
| |
| <span class="c1"># Check dependencies.</span> |
| <span class="n">expansion_happened</span> <span class="o">=</span> <span class="kc">False</span> |
| <span class="k">for</span> <span class="n">schedulable</span> <span class="ow">in</span> <span class="n">itertools</span><span class="o">.</span><span class="n">chain</span><span class="p">(</span><span class="n">schedulable_tis</span><span class="p">,</span> <span class="n">additional_tis</span><span class="p">):</span> |
| <span class="n">old_state</span> <span class="o">=</span> <span class="n">schedulable</span><span class="o">.</span><span class="n">state</span> |
| <span class="k">if</span> <span class="ow">not</span> <span class="n">schedulable</span><span class="o">.</span><span class="n">are_dependencies_met</span><span class="p">(</span><span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">,</span> <span class="n">dep_context</span><span class="o">=</span><span class="n">dep_context</span><span class="p">):</span> |
| <span class="n">old_states</span><span class="p">[</span><span class="n">schedulable</span><span class="o">.</span><span class="n">key</span><span class="p">]</span> <span class="o">=</span> <span class="n">old_state</span> |
| <span class="k">continue</span> |
| <span class="c1"># If schedulable is from a mapped task, but not yet expanded, do it</span> |
| <span class="c1"># now. This is called in two places: First and ideally in the mini</span> |
| <span class="c1"># scheduler at the end of LocalTaskJob, and then as an "expansion of</span> |
| <span class="c1"># last resort" in the scheduler to ensure that the mapped task is</span> |
| <span class="c1"># correctly expanded before executed.</span> |
| <span class="k">if</span> <span class="n">schedulable</span><span class="o">.</span><span class="n">map_index</span> <span class="o"><</span> <span class="mi">0</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">schedulable</span><span class="o">.</span><span class="n">task</span><span class="p">,</span> <span class="n">MappedOperator</span><span class="p">):</span> |
| <span class="n">expanded_tis</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="n">schedulable</span><span class="o">.</span><span class="n">task</span><span class="o">.</span><span class="n">expand_mapped_task</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> <span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">)</span> |
| <span class="k">if</span> <span class="n">expanded_tis</span><span class="p">:</span> |
| <span class="k">assert</span> <span class="n">expanded_tis</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="ow">is</span> <span class="n">schedulable</span> |
| <span class="n">additional_tis</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">expanded_tis</span><span class="p">[</span><span class="mi">1</span><span class="p">:])</span> |
| <span class="n">expansion_happened</span> <span class="o">=</span> <span class="kc">True</span> |
| <span class="k">if</span> <span class="n">schedulable</span><span class="o">.</span><span class="n">state</span> <span class="ow">in</span> <span class="n">SCHEDULEABLE_STATES</span><span class="p">:</span> |
| <span class="n">task</span> <span class="o">=</span> <span class="n">schedulable</span><span class="o">.</span><span class="n">task</span> |
| <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">schedulable</span><span class="o">.</span><span class="n">task</span><span class="p">,</span> <span class="n">MappedOperator</span><span class="p">):</span> |
| <span class="c1"># Ensure the task indexes are complete</span> |
| <span class="n">created</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_revise_mapped_task_indexes</span><span class="p">(</span><span class="n">task</span><span class="p">,</span> <span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">)</span> |
| <span class="n">ready_tis</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">created</span><span class="p">)</span> |
| <span class="n">ready_tis</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">schedulable</span><span class="p">)</span> |
| |
| <span class="c1"># Check if any ti changed state</span> |
| <span class="n">tis_filter</span> <span class="o">=</span> <span class="n">TI</span><span class="o">.</span><span class="n">filter_for_tis</span><span class="p">(</span><span class="n">old_states</span><span class="p">)</span> |
| <span class="k">if</span> <span class="n">tis_filter</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="n">fresh_tis</span> <span class="o">=</span> <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="n">TI</span><span class="p">)</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span><span class="n">tis_filter</span><span class="p">)</span><span class="o">.</span><span class="n">all</span><span class="p">()</span> |
| <span class="n">changed_tis</span> <span class="o">=</span> <span class="nb">any</span><span class="p">(</span><span class="n">ti</span><span class="o">.</span><span class="n">state</span> <span class="o">!=</span> <span class="n">old_states</span><span class="p">[</span><span class="n">ti</span><span class="o">.</span><span class="n">key</span><span class="p">]</span> <span class="k">for</span> <span class="n">ti</span> <span class="ow">in</span> <span class="n">fresh_tis</span><span class="p">)</span> |
| |
| <span class="k">return</span> <span class="n">ready_tis</span><span class="p">,</span> <span class="n">changed_tis</span><span class="p">,</span> <span class="n">expansion_happened</span> |
| |
| <span class="k">def</span> <span class="nf">_are_premature_tis</span><span class="p">(</span> |
| <span class="bp">self</span><span class="p">,</span> |
| <span class="n">unfinished_tis</span><span class="p">:</span> <span class="n">Sequence</span><span class="p">[</span><span class="n">TI</span><span class="p">],</span> |
| <span class="n">finished_tis</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="n">TI</span><span class="p">],</span> |
| <span class="n">session</span><span class="p">:</span> <span class="n">Session</span><span class="p">,</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="nb">tuple</span><span class="p">[</span><span class="nb">bool</span><span class="p">,</span> <span class="nb">bool</span><span class="p">]:</span> |
| <span class="n">dep_context</span> <span class="o">=</span> <span class="n">DepContext</span><span class="p">(</span> |
| <span class="n">flag_upstream_failed</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> |
| <span class="n">ignore_in_retry_period</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> |
| <span class="n">ignore_in_reschedule_period</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> |
| <span class="n">finished_tis</span><span class="o">=</span><span class="n">finished_tis</span><span class="p">,</span> |
| <span class="p">)</span> |
| <span class="c1"># there might be runnable tasks that are up for retry and for some reason(retry delay, etc) are</span> |
| <span class="c1"># not ready yet so we set the flags to count them in</span> |
| <span class="k">return</span> <span class="p">(</span> |
| <span class="nb">any</span><span class="p">(</span><span class="n">ut</span><span class="o">.</span><span class="n">are_dependencies_met</span><span class="p">(</span><span class="n">dep_context</span><span class="o">=</span><span class="n">dep_context</span><span class="p">,</span> <span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">)</span> <span class="k">for</span> <span class="n">ut</span> <span class="ow">in</span> <span class="n">unfinished_tis</span><span class="p">),</span> |
| <span class="n">dep_context</span><span class="o">.</span><span class="n">have_changed_ti_states</span><span class="p">,</span> |
| <span class="p">)</span> |
| |
| <span class="k">def</span> <span class="nf">_emit_true_scheduling_delay_stats_for_finished_state</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">finished_tis</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="n">TI</span><span class="p">])</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <span class="sd">"""</span> |
| <span class="sd"> This is a helper method to emit the true scheduling delay stats, which is defined as</span> |
| <span class="sd"> the time when the first task in DAG starts minus the expected DAG run datetime.</span> |
| <span class="sd"> This method will be used in the update_state method when the state of the DagRun</span> |
| <span class="sd"> is updated to a completed status (either success or failure). The method will find the first</span> |
| <span class="sd"> started task within the DAG and calculate the expected DagRun start time (based on</span> |
| <span class="sd"> dag.execution_date & dag.timetable), and minus these two values to get the delay.</span> |
| <span class="sd"> The emitted data may contains outlier (e.g. when the first task was cleared, so</span> |
| <span class="sd"> the second task's start_date will be used), but we can get rid of the outliers</span> |
| <span class="sd"> on the stats side through the dashboards tooling built.</span> |
| <span class="sd"> Note, the stat will only be emitted if the DagRun is a scheduler triggered one</span> |
| <span class="sd"> (i.e. external_trigger is False).</span> |
| <span class="sd"> """</span> |
| <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span> <span class="o">==</span> <span class="n">State</span><span class="o">.</span><span class="n">RUNNING</span><span class="p">:</span> |
| <span class="k">return</span> |
| <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">external_trigger</span><span class="p">:</span> |
| <span class="k">return</span> |
| <span class="k">if</span> <span class="ow">not</span> <span class="n">finished_tis</span><span class="p">:</span> |
| <span class="k">return</span> |
| |
| <span class="k">try</span><span class="p">:</span> |
| <span class="n">dag</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_dag</span><span class="p">()</span> |
| |
| <span class="k">if</span> <span class="ow">not</span> <span class="n">dag</span><span class="o">.</span><span class="n">timetable</span><span class="o">.</span><span class="n">periodic</span><span class="p">:</span> |
| <span class="c1"># We can't emit this metric if there is no following schedule to calculate from!</span> |
| <span class="k">return</span> |
| |
| <span class="n">ordered_tis_by_start_date</span> <span class="o">=</span> <span class="p">[</span><span class="n">ti</span> <span class="k">for</span> <span class="n">ti</span> <span class="ow">in</span> <span class="n">finished_tis</span> <span class="k">if</span> <span class="n">ti</span><span class="o">.</span><span class="n">start_date</span><span class="p">]</span> |
| <span class="n">ordered_tis_by_start_date</span><span class="o">.</span><span class="n">sort</span><span class="p">(</span><span class="n">key</span><span class="o">=</span><span class="k">lambda</span> <span class="n">ti</span><span class="p">:</span> <span class="n">ti</span><span class="o">.</span><span class="n">start_date</span><span class="p">,</span> <span class="n">reverse</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> |
| <span class="n">first_start_date</span> <span class="o">=</span> <span class="n">ordered_tis_by_start_date</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">start_date</span> |
| <span class="k">if</span> <span class="n">first_start_date</span><span class="p">:</span> |
| <span class="c1"># TODO: Logically, this should be DagRunInfo.run_after, but the</span> |
| <span class="c1"># information is not stored on a DagRun, only before the actual</span> |
| <span class="c1"># execution on DagModel.next_dagrun_create_after. We should add</span> |
| <span class="c1"># a field on DagRun for this instead of relying on the run</span> |
| <span class="c1"># always happening immediately after the data interval.</span> |
| <span class="n">data_interval_end</span> <span class="o">=</span> <span class="n">dag</span><span class="o">.</span><span class="n">get_run_data_interval</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">end</span> |
| <span class="n">true_delay</span> <span class="o">=</span> <span class="n">first_start_date</span> <span class="o">-</span> <span class="n">data_interval_end</span> |
| <span class="k">if</span> <span class="n">true_delay</span><span class="o">.</span><span class="n">total_seconds</span><span class="p">()</span> <span class="o">></span> <span class="mi">0</span><span class="p">:</span> |
| <span class="n">Stats</span><span class="o">.</span><span class="n">timing</span><span class="p">(</span><span class="sa">f</span><span class="s1">'dagrun.</span><span class="si">{</span><span class="n">dag</span><span class="o">.</span><span class="n">dag_id</span><span class="si">}</span><span class="s1">.first_task_scheduling_delay'</span><span class="p">,</span> <span class="n">true_delay</span><span class="p">)</span> |
| <span class="k">except</span> <span class="ne">Exception</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">warning</span><span class="p">(</span><span class="s1">'Failed to record first_task_scheduling_delay metric:'</span><span class="p">,</span> <span class="n">exc_info</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span> |
| |
| <span class="k">def</span> <span class="nf">_emit_duration_stats_for_finished_state</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> |
| <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span> <span class="o">==</span> <span class="n">State</span><span class="o">.</span><span class="n">RUNNING</span><span class="p">:</span> |
| <span class="k">return</span> |
| <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">start_date</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">warning</span><span class="p">(</span><span class="s1">'Failed to record duration of </span><span class="si">%s</span><span class="s1">: start_date is not set.'</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span> |
| <span class="k">return</span> |
| <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">end_date</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">warning</span><span class="p">(</span><span class="s1">'Failed to record duration of </span><span class="si">%s</span><span class="s1">: end_date is not set.'</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span> |
| <span class="k">return</span> |
| |
| <span class="n">duration</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">end_date</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">start_date</span> |
| <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span> <span class="o">==</span> <span class="n">State</span><span class="o">.</span><span class="n">SUCCESS</span><span class="p">:</span> |
| <span class="n">Stats</span><span class="o">.</span><span class="n">timing</span><span class="p">(</span><span class="sa">f</span><span class="s1">'dagrun.duration.success.</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span><span class="si">}</span><span class="s1">'</span><span class="p">,</span> <span class="n">duration</span><span class="p">)</span> |
| <span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span> <span class="o">==</span> <span class="n">State</span><span class="o">.</span><span class="n">FAILED</span><span class="p">:</span> |
| <span class="n">Stats</span><span class="o">.</span><span class="n">timing</span><span class="p">(</span><span class="sa">f</span><span class="s1">'dagrun.duration.failed.</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span><span class="si">}</span><span class="s1">'</span><span class="p">,</span> <span class="n">duration</span><span class="p">)</span> |
| |
| <span class="nd">@provide_session</span> |
| <div class="viewcode-block" id="DagRun.verify_integrity"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.verify_integrity">[docs]</a> <span class="k">def</span> <span class="nf">verify_integrity</span><span class="p">(</span> |
| <span class="bp">self</span><span class="p">,</span> |
| <span class="o">*</span><span class="p">,</span> |
| <span class="n">session</span><span class="p">:</span> <span class="n">Session</span> <span class="o">=</span> <span class="n">NEW_SESSION</span><span class="p">,</span> |
| <span class="p">):</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Verifies the DagRun by checking for removed tasks or tasks that are not in the</span> |
| <span class="sd"> database yet. It will set state to removed or add the task if required.</span> |
| |
| <span class="sd"> :missing_indexes: A dictionary of task vs indexes that are missing.</span> |
| <span class="sd"> :param session: Sqlalchemy ORM Session</span> |
| <span class="sd"> """</span> |
| <span class="kn">from</span> <span class="nn">airflow.settings</span> <span class="kn">import</span> <span class="n">task_instance_mutation_hook</span> |
| |
| <span class="c1"># Set for the empty default in airflow.settings -- if it's not set this means it has been changed</span> |
| <span class="c1"># Note: Literal[True, False] instead of bool because otherwise it doesn't correctly find the overload.</span> |
| <span class="n">hook_is_noop</span><span class="p">:</span> <span class="n">Literal</span><span class="p">[</span><span class="kc">True</span><span class="p">,</span> <span class="kc">False</span><span class="p">]</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">task_instance_mutation_hook</span><span class="p">,</span> <span class="s1">'is_noop'</span><span class="p">,</span> <span class="kc">False</span><span class="p">)</span> |
| |
| <span class="n">dag</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_dag</span><span class="p">()</span> |
| <span class="n">task_ids</span><span class="p">:</span> <span class="nb">set</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span> |
| |
| <span class="n">task_ids</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_check_for_removed_or_restored_tasks</span><span class="p">(</span> |
| <span class="n">dag</span><span class="p">,</span> <span class="n">task_instance_mutation_hook</span><span class="p">,</span> <span class="n">session</span><span class="o">=</span><span class="n">session</span> |
| <span class="p">)</span> |
| |
| <span class="k">def</span> <span class="nf">task_filter</span><span class="p">(</span><span class="n">task</span><span class="p">:</span> <span class="n">Operator</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> |
| <span class="k">return</span> <span class="n">task</span><span class="o">.</span><span class="n">task_id</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">task_ids</span> <span class="ow">and</span> <span class="p">(</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">is_backfill</span> |
| <span class="ow">or</span> <span class="n">task</span><span class="o">.</span><span class="n">start_date</span> <span class="o"><=</span> <span class="bp">self</span><span class="o">.</span><span class="n">execution_date</span> |
| <span class="ow">and</span> <span class="p">(</span><span class="n">task</span><span class="o">.</span><span class="n">end_date</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">execution_date</span> <span class="o"><=</span> <span class="n">task</span><span class="o">.</span><span class="n">end_date</span><span class="p">)</span> |
| <span class="p">)</span> |
| |
| <span class="n">created_counts</span><span class="p">:</span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="n">defaultdict</span><span class="p">(</span><span class="nb">int</span><span class="p">)</span> |
| |
| <span class="c1"># Get task creator function</span> |
| <span class="n">task_creator</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_task_creator</span><span class="p">(</span><span class="n">created_counts</span><span class="p">,</span> <span class="n">task_instance_mutation_hook</span><span class="p">,</span> <span class="n">hook_is_noop</span><span class="p">)</span> |
| |
| <span class="c1"># Create the missing tasks, including mapped tasks</span> |
| <span class="n">tasks</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_create_tasks</span><span class="p">(</span><span class="n">dag</span><span class="p">,</span> <span class="n">task_creator</span><span class="p">,</span> <span class="n">task_filter</span><span class="p">,</span> <span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">)</span> |
| |
| <span class="bp">self</span><span class="o">.</span><span class="n">_create_task_instances</span><span class="p">(</span><span class="n">dag</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> <span class="n">tasks</span><span class="p">,</span> <span class="n">created_counts</span><span class="p">,</span> <span class="n">hook_is_noop</span><span class="p">,</span> <span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">)</span></div> |
| |
| <span class="k">def</span> <span class="nf">_check_for_removed_or_restored_tasks</span><span class="p">(</span> |
| <span class="bp">self</span><span class="p">,</span> <span class="n">dag</span><span class="p">:</span> <span class="n">DAG</span><span class="p">,</span> <span class="n">ti_mutation_hook</span><span class="p">,</span> <span class="o">*</span><span class="p">,</span> <span class="n">session</span><span class="p">:</span> <span class="n">Session</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="nb">set</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Check for removed tasks/restored/missing tasks.</span> |
| |
| <span class="sd"> :param dag: DAG object corresponding to the dagrun</span> |
| <span class="sd"> :param ti_mutation_hook: task_instance_mutation_hook function</span> |
| <span class="sd"> :param session: Sqlalchemy ORM Session</span> |
| |
| <span class="sd"> :return: Task IDs in the DAG run</span> |
| |
| <span class="sd"> """</span> |
| <span class="n">tis</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_task_instances</span><span class="p">(</span><span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">)</span> |
| |
| <span class="c1"># check for removed or restored tasks</span> |
| <span class="n">task_ids</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span> |
| <span class="k">for</span> <span class="n">ti</span> <span class="ow">in</span> <span class="n">tis</span><span class="p">:</span> |
| <span class="n">ti_mutation_hook</span><span class="p">(</span><span class="n">ti</span><span class="p">)</span> |
| <span class="n">task_ids</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">ti</span><span class="o">.</span><span class="n">task_id</span><span class="p">)</span> |
| <span class="n">task</span> <span class="o">=</span> <span class="kc">None</span> |
| <span class="k">try</span><span class="p">:</span> |
| <span class="n">task</span> <span class="o">=</span> <span class="n">dag</span><span class="o">.</span><span class="n">get_task</span><span class="p">(</span><span class="n">ti</span><span class="o">.</span><span class="n">task_id</span><span class="p">)</span> |
| |
| <span class="n">should_restore_task</span> <span class="o">=</span> <span class="p">(</span><span class="n">task</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">)</span> <span class="ow">and</span> <span class="n">ti</span><span class="o">.</span><span class="n">state</span> <span class="o">==</span> <span class="n">State</span><span class="o">.</span><span class="n">REMOVED</span> |
| <span class="k">if</span> <span class="n">should_restore_task</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s2">"Restoring task '</span><span class="si">%s</span><span class="s2">' which was previously removed from DAG '</span><span class="si">%s</span><span class="s2">'"</span><span class="p">,</span> <span class="n">ti</span><span class="p">,</span> <span class="n">dag</span><span class="p">)</span> |
| <span class="n">Stats</span><span class="o">.</span><span class="n">incr</span><span class="p">(</span><span class="sa">f</span><span class="s2">"task_restored_to_dag.</span><span class="si">{</span><span class="n">dag</span><span class="o">.</span><span class="n">dag_id</span><span class="si">}</span><span class="s2">"</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span> |
| <span class="n">ti</span><span class="o">.</span><span class="n">state</span> <span class="o">=</span> <span class="n">State</span><span class="o">.</span><span class="n">NONE</span> |
| <span class="k">except</span> <span class="n">AirflowException</span><span class="p">:</span> |
| <span class="k">if</span> <span class="n">ti</span><span class="o">.</span><span class="n">state</span> <span class="o">==</span> <span class="n">State</span><span class="o">.</span><span class="n">REMOVED</span><span class="p">:</span> |
| <span class="k">pass</span> <span class="c1"># ti has already been removed, just ignore it</span> |
| <span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">state</span> <span class="o">!=</span> <span class="n">State</span><span class="o">.</span><span class="n">RUNNING</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">dag</span><span class="o">.</span><span class="n">partial</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">warning</span><span class="p">(</span><span class="s2">"Failed to get task '</span><span class="si">%s</span><span class="s2">' for dag '</span><span class="si">%s</span><span class="s2">'. Marking it as removed."</span><span class="p">,</span> <span class="n">ti</span><span class="p">,</span> <span class="n">dag</span><span class="p">)</span> |
| <span class="n">Stats</span><span class="o">.</span><span class="n">incr</span><span class="p">(</span><span class="sa">f</span><span class="s2">"task_removed_from_dag.</span><span class="si">{</span><span class="n">dag</span><span class="o">.</span><span class="n">dag_id</span><span class="si">}</span><span class="s2">"</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span> |
| <span class="n">ti</span><span class="o">.</span><span class="n">state</span> <span class="o">=</span> <span class="n">State</span><span class="o">.</span><span class="n">REMOVED</span> |
| <span class="k">continue</span> |
| |
| <span class="k">if</span> <span class="ow">not</span> <span class="n">task</span><span class="o">.</span><span class="n">is_mapped</span><span class="p">:</span> |
| <span class="k">continue</span> |
| <span class="n">task</span> <span class="o">=</span> <span class="n">cast</span><span class="p">(</span><span class="s2">"MappedOperator"</span><span class="p">,</span> <span class="n">task</span><span class="p">)</span> |
| <span class="n">num_mapped_tis</span> <span class="o">=</span> <span class="n">task</span><span class="o">.</span><span class="n">parse_time_mapped_ti_count</span> |
| <span class="c1"># Check if the number of mapped literals has changed and we need to mark this TI as removed</span> |
| <span class="k">if</span> <span class="n">num_mapped_tis</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="k">if</span> <span class="n">ti</span><span class="o">.</span><span class="n">map_index</span> <span class="o">>=</span> <span class="n">num_mapped_tis</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span> |
| <span class="s2">"Removing task '</span><span class="si">%s</span><span class="s2">' as the map_index is longer than the literal mapping list (</span><span class="si">%s</span><span class="s2">)"</span><span class="p">,</span> |
| <span class="n">ti</span><span class="p">,</span> |
| <span class="n">num_mapped_tis</span><span class="p">,</span> |
| <span class="p">)</span> |
| <span class="n">ti</span><span class="o">.</span><span class="n">state</span> <span class="o">=</span> <span class="n">State</span><span class="o">.</span><span class="n">REMOVED</span> |
| <span class="k">elif</span> <span class="n">ti</span><span class="o">.</span><span class="n">map_index</span> <span class="o"><</span> <span class="mi">0</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">"Removing the unmapped TI '</span><span class="si">%s</span><span class="s2">' as the mapping can now be performed"</span><span class="p">,</span> <span class="n">ti</span><span class="p">)</span> |
| <span class="n">ti</span><span class="o">.</span><span class="n">state</span> <span class="o">=</span> <span class="n">State</span><span class="o">.</span><span class="n">REMOVED</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="c1"># What if it is _now_ dynamically mapped, but wasn't before?</span> |
| <span class="n">task</span><span class="o">.</span><span class="n">run_time_mapped_ti_count</span><span class="o">.</span><span class="n">cache_clear</span><span class="p">()</span> <span class="c1"># type: ignore[attr-defined]</span> |
| <span class="n">total_length</span> <span class="o">=</span> <span class="n">task</span><span class="o">.</span><span class="n">run_time_mapped_ti_count</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> <span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">)</span> |
| |
| <span class="k">if</span> <span class="n">total_length</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="c1"># Not all upstreams finished, so we can't tell what should be here. Remove everything.</span> |
| <span class="k">if</span> <span class="n">ti</span><span class="o">.</span><span class="n">map_index</span> <span class="o">>=</span> <span class="mi">0</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span> |
| <span class="s2">"Removing the unmapped TI '</span><span class="si">%s</span><span class="s2">' as the mapping can't be resolved yet"</span><span class="p">,</span> <span class="n">ti</span> |
| <span class="p">)</span> |
| <span class="n">ti</span><span class="o">.</span><span class="n">state</span> <span class="o">=</span> <span class="n">State</span><span class="o">.</span><span class="n">REMOVED</span> |
| <span class="k">continue</span> |
| <span class="c1"># Upstreams finished, check there aren't any extras</span> |
| <span class="k">if</span> <span class="n">ti</span><span class="o">.</span><span class="n">map_index</span> <span class="o">>=</span> <span class="n">total_length</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span> |
| <span class="s2">"Removing task '</span><span class="si">%s</span><span class="s2">' as the map_index is longer than the resolved mapping list (</span><span class="si">%d</span><span class="s2">)"</span><span class="p">,</span> |
| <span class="n">ti</span><span class="p">,</span> |
| <span class="n">total_length</span><span class="p">,</span> |
| <span class="p">)</span> |
| <span class="n">ti</span><span class="o">.</span><span class="n">state</span> <span class="o">=</span> <span class="n">State</span><span class="o">.</span><span class="n">REMOVED</span> |
| |
| <span class="k">return</span> <span class="n">task_ids</span> |
| |
| <span class="nd">@overload</span> |
| <span class="k">def</span> <span class="nf">_get_task_creator</span><span class="p">(</span> |
| <span class="bp">self</span><span class="p">,</span> |
| <span class="n">created_counts</span><span class="p">:</span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">int</span><span class="p">],</span> |
| <span class="n">ti_mutation_hook</span><span class="p">:</span> <span class="n">Callable</span><span class="p">,</span> |
| <span class="n">hook_is_noop</span><span class="p">:</span> <span class="n">Literal</span><span class="p">[</span><span class="kc">True</span><span class="p">],</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="n">Callable</span><span class="p">[[</span><span class="n">Operator</span><span class="p">,</span> <span class="nb">tuple</span><span class="p">[</span><span class="nb">int</span><span class="p">,</span> <span class="o">...</span><span class="p">]],</span> <span class="n">Iterator</span><span class="p">[</span><span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]]]:</span> |
| <span class="o">...</span> |
| |
| <span class="nd">@overload</span> |
| <span class="k">def</span> <span class="nf">_get_task_creator</span><span class="p">(</span> |
| <span class="bp">self</span><span class="p">,</span> |
| <span class="n">created_counts</span><span class="p">:</span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">int</span><span class="p">],</span> |
| <span class="n">ti_mutation_hook</span><span class="p">:</span> <span class="n">Callable</span><span class="p">,</span> |
| <span class="n">hook_is_noop</span><span class="p">:</span> <span class="n">Literal</span><span class="p">[</span><span class="kc">False</span><span class="p">],</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="n">Callable</span><span class="p">[[</span><span class="n">Operator</span><span class="p">,</span> <span class="nb">tuple</span><span class="p">[</span><span class="nb">int</span><span class="p">,</span> <span class="o">...</span><span class="p">]],</span> <span class="n">Iterator</span><span class="p">[</span><span class="n">TI</span><span class="p">]]:</span> |
| <span class="o">...</span> |
| |
| <span class="k">def</span> <span class="nf">_get_task_creator</span><span class="p">(</span> |
| <span class="bp">self</span><span class="p">,</span> |
| <span class="n">created_counts</span><span class="p">:</span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">int</span><span class="p">],</span> |
| <span class="n">ti_mutation_hook</span><span class="p">:</span> <span class="n">Callable</span><span class="p">,</span> |
| <span class="n">hook_is_noop</span><span class="p">:</span> <span class="n">Literal</span><span class="p">[</span><span class="kc">True</span><span class="p">,</span> <span class="kc">False</span><span class="p">],</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="n">Callable</span><span class="p">[[</span><span class="n">Operator</span><span class="p">,</span> <span class="nb">tuple</span><span class="p">[</span><span class="nb">int</span><span class="p">,</span> <span class="o">...</span><span class="p">]],</span> <span class="n">Iterator</span><span class="p">[</span><span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]]</span> <span class="o">|</span> <span class="n">Iterator</span><span class="p">[</span><span class="n">TI</span><span class="p">]]:</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Get the task creator function.</span> |
| |
| <span class="sd"> This function also updates the created_counts dictionary with the number of tasks created.</span> |
| |
| <span class="sd"> :param created_counts: Dictionary of task_type -> count of created TIs</span> |
| <span class="sd"> :param ti_mutation_hook: task_instance_mutation_hook function</span> |
| <span class="sd"> :param hook_is_noop: Whether the task_instance_mutation_hook is a noop</span> |
| |
| <span class="sd"> """</span> |
| <span class="k">if</span> <span class="n">hook_is_noop</span><span class="p">:</span> |
| |
| <span class="k">def</span> <span class="nf">create_ti_mapping</span><span class="p">(</span><span class="n">task</span><span class="p">:</span> <span class="n">Operator</span><span class="p">,</span> <span class="n">indexes</span><span class="p">:</span> <span class="nb">tuple</span><span class="p">[</span><span class="nb">int</span><span class="p">,</span> <span class="o">...</span><span class="p">])</span> <span class="o">-></span> <span class="n">Iterator</span><span class="p">[</span><span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]]:</span> |
| <span class="n">created_counts</span><span class="p">[</span><span class="n">task</span><span class="o">.</span><span class="n">task_type</span><span class="p">]</span> <span class="o">+=</span> <span class="mi">1</span> |
| <span class="k">for</span> <span class="n">map_index</span> <span class="ow">in</span> <span class="n">indexes</span><span class="p">:</span> |
| <span class="k">yield</span> <span class="n">TI</span><span class="o">.</span><span class="n">insert_mapping</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> <span class="n">task</span><span class="p">,</span> <span class="n">map_index</span><span class="o">=</span><span class="n">map_index</span><span class="p">)</span> |
| |
| <span class="n">creator</span> <span class="o">=</span> <span class="n">create_ti_mapping</span> |
| |
| <span class="k">else</span><span class="p">:</span> |
| |
| <span class="k">def</span> <span class="nf">create_ti</span><span class="p">(</span><span class="n">task</span><span class="p">:</span> <span class="n">Operator</span><span class="p">,</span> <span class="n">indexes</span><span class="p">:</span> <span class="nb">tuple</span><span class="p">[</span><span class="nb">int</span><span class="p">,</span> <span class="o">...</span><span class="p">])</span> <span class="o">-></span> <span class="n">Iterator</span><span class="p">[</span><span class="n">TI</span><span class="p">]:</span> |
| <span class="k">for</span> <span class="n">map_index</span> <span class="ow">in</span> <span class="n">indexes</span><span class="p">:</span> |
| <span class="n">ti</span> <span class="o">=</span> <span class="n">TI</span><span class="p">(</span><span class="n">task</span><span class="p">,</span> <span class="n">run_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> <span class="n">map_index</span><span class="o">=</span><span class="n">map_index</span><span class="p">)</span> |
| <span class="n">ti_mutation_hook</span><span class="p">(</span><span class="n">ti</span><span class="p">)</span> |
| <span class="n">created_counts</span><span class="p">[</span><span class="n">ti</span><span class="o">.</span><span class="n">operator</span><span class="p">]</span> <span class="o">+=</span> <span class="mi">1</span> |
| <span class="k">yield</span> <span class="n">ti</span> |
| |
| <span class="n">creator</span> <span class="o">=</span> <span class="n">create_ti</span> |
| <span class="k">return</span> <span class="n">creator</span> |
| |
| <span class="k">def</span> <span class="nf">_create_tasks</span><span class="p">(</span> |
| <span class="bp">self</span><span class="p">,</span> |
| <span class="n">dag</span><span class="p">:</span> <span class="n">DAG</span><span class="p">,</span> |
| <span class="n">task_creator</span><span class="p">:</span> <span class="n">Callable</span><span class="p">[[</span><span class="n">Operator</span><span class="p">,</span> <span class="nb">tuple</span><span class="p">[</span><span class="nb">int</span><span class="p">,</span> <span class="o">...</span><span class="p">]],</span> <span class="n">CreatedTasksType</span><span class="p">],</span> |
| <span class="n">task_filter</span><span class="p">:</span> <span class="n">Callable</span><span class="p">[[</span><span class="n">Operator</span><span class="p">],</span> <span class="nb">bool</span><span class="p">],</span> |
| <span class="o">*</span><span class="p">,</span> |
| <span class="n">session</span><span class="p">:</span> <span class="n">Session</span><span class="p">,</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="n">CreatedTasksType</span><span class="p">:</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Create missing tasks -- and expand any MappedOperator that _only_ have literals as input</span> |
| |
| <span class="sd"> :param dag: DAG object corresponding to the dagrun</span> |
| <span class="sd"> :param task_creator: a function that creates tasks</span> |
| <span class="sd"> :param task_filter: a function that filters tasks to create</span> |
| <span class="sd"> :param session: the session to use</span> |
| <span class="sd"> """</span> |
| |
| <span class="k">def</span> <span class="nf">expand_mapped_literals</span><span class="p">(</span> |
| <span class="n">task</span><span class="p">:</span> <span class="n">Operator</span><span class="p">,</span> <span class="n">sequence</span><span class="p">:</span> <span class="n">Sequence</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="nb">tuple</span><span class="p">[</span><span class="n">Operator</span><span class="p">,</span> <span class="n">Sequence</span><span class="p">[</span><span class="nb">int</span><span class="p">]]:</span> |
| <span class="k">if</span> <span class="ow">not</span> <span class="n">task</span><span class="o">.</span><span class="n">is_mapped</span><span class="p">:</span> |
| <span class="k">return</span> <span class="p">(</span><span class="n">task</span><span class="p">,</span> <span class="p">(</span><span class="o">-</span><span class="mi">1</span><span class="p">,))</span> |
| <span class="n">task</span> <span class="o">=</span> <span class="n">cast</span><span class="p">(</span><span class="s2">"MappedOperator"</span><span class="p">,</span> <span class="n">task</span><span class="p">)</span> |
| <span class="n">count</span> <span class="o">=</span> <span class="n">task</span><span class="o">.</span><span class="n">parse_time_mapped_ti_count</span> <span class="ow">or</span> <span class="n">task</span><span class="o">.</span><span class="n">run_time_mapped_ti_count</span><span class="p">(</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> <span class="n">session</span><span class="o">=</span><span class="n">session</span> |
| <span class="p">)</span> |
| <span class="k">if</span> <span class="ow">not</span> <span class="n">count</span><span class="p">:</span> |
| <span class="k">return</span> <span class="p">(</span><span class="n">task</span><span class="p">,</span> <span class="p">(</span><span class="o">-</span><span class="mi">1</span><span class="p">,))</span> |
| <span class="k">if</span> <span class="n">sequence</span><span class="p">:</span> |
| <span class="k">return</span> <span class="p">(</span><span class="n">task</span><span class="p">,</span> <span class="n">sequence</span><span class="p">)</span> |
| <span class="k">return</span> <span class="p">(</span><span class="n">task</span><span class="p">,</span> <span class="nb">range</span><span class="p">(</span><span class="n">count</span><span class="p">))</span> |
| |
| <span class="n">tasks_and_map_idxs</span> <span class="o">=</span> <span class="nb">map</span><span class="p">(</span><span class="n">expand_mapped_literals</span><span class="p">,</span> <span class="nb">filter</span><span class="p">(</span><span class="n">task_filter</span><span class="p">,</span> <span class="n">dag</span><span class="o">.</span><span class="n">task_dict</span><span class="o">.</span><span class="n">values</span><span class="p">()))</span> |
| |
| <span class="n">tasks</span><span class="p">:</span> <span class="n">CreatedTasksType</span> <span class="o">=</span> <span class="n">itertools</span><span class="o">.</span><span class="n">chain</span><span class="o">.</span><span class="n">from_iterable</span><span class="p">(</span> <span class="c1"># type: ignore</span> |
| <span class="n">itertools</span><span class="o">.</span><span class="n">starmap</span><span class="p">(</span><span class="n">task_creator</span><span class="p">,</span> <span class="n">tasks_and_map_idxs</span><span class="p">)</span> <span class="c1"># type: ignore</span> |
| <span class="p">)</span> |
| <span class="k">return</span> <span class="n">tasks</span> |
| |
| <span class="k">def</span> <span class="nf">_create_task_instances</span><span class="p">(</span> |
| <span class="bp">self</span><span class="p">,</span> |
| <span class="n">dag_id</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> |
| <span class="n">tasks</span><span class="p">:</span> <span class="n">Iterator</span><span class="p">[</span><span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]]</span> <span class="o">|</span> <span class="n">Iterator</span><span class="p">[</span><span class="n">TI</span><span class="p">],</span> |
| <span class="n">created_counts</span><span class="p">:</span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">int</span><span class="p">],</span> |
| <span class="n">hook_is_noop</span><span class="p">:</span> <span class="nb">bool</span><span class="p">,</span> |
| <span class="o">*</span><span class="p">,</span> |
| <span class="n">session</span><span class="p">:</span> <span class="n">Session</span><span class="p">,</span> |
| <span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Create the necessary task instances from the given tasks.</span> |
| |
| <span class="sd"> :param dag_id: DAG ID associated with the dagrun</span> |
| <span class="sd"> :param tasks: the tasks to create the task instances from</span> |
| <span class="sd"> :param created_counts: a dictionary of number of tasks -> total ti created by the task creator</span> |
| <span class="sd"> :param hook_is_noop: whether the task_instance_mutation_hook is noop</span> |
| <span class="sd"> :param session: the session to use</span> |
| |
| <span class="sd"> """</span> |
| <span class="c1"># Fetch the information we need before handling the exception to avoid</span> |
| <span class="c1"># PendingRollbackError due to the session being invalidated on exception</span> |
| <span class="c1"># see https://github.com/apache/superset/pull/530</span> |
| <span class="n">run_id</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_id</span> |
| <span class="k">try</span><span class="p">:</span> |
| <span class="k">if</span> <span class="n">hook_is_noop</span><span class="p">:</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">bulk_insert_mappings</span><span class="p">(</span><span class="n">TI</span><span class="p">,</span> <span class="n">tasks</span><span class="p">)</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">bulk_save_objects</span><span class="p">(</span><span class="n">tasks</span><span class="p">)</span> |
| |
| <span class="k">for</span> <span class="n">task_type</span><span class="p">,</span> <span class="n">count</span> <span class="ow">in</span> <span class="n">created_counts</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> |
| <span class="n">Stats</span><span class="o">.</span><span class="n">incr</span><span class="p">(</span><span class="sa">f</span><span class="s2">"task_instance_created-</span><span class="si">{</span><span class="n">task_type</span><span class="si">}</span><span class="s2">"</span><span class="p">,</span> <span class="n">count</span><span class="p">)</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">flush</span><span class="p">()</span> |
| <span class="k">except</span> <span class="n">IntegrityError</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span> |
| <span class="s1">'Hit IntegrityError while creating the TIs for </span><span class="si">%s</span><span class="s1">- </span><span class="si">%s</span><span class="s1">'</span><span class="p">,</span> |
| <span class="n">dag_id</span><span class="p">,</span> |
| <span class="n">run_id</span><span class="p">,</span> |
| <span class="n">exc_info</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> |
| <span class="p">)</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'Doing session rollback.'</span><span class="p">)</span> |
| <span class="c1"># TODO[HA]: We probably need to savepoint this so we can keep the transaction alive.</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">rollback</span><span class="p">()</span> |
| |
| <span class="k">def</span> <span class="nf">_revise_mapped_task_indexes</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">task</span><span class="p">,</span> <span class="n">session</span><span class="p">:</span> <span class="n">Session</span><span class="p">):</span> |
| <span class="sd">"""Check if task increased or reduced in length and handle appropriately"""</span> |
| <span class="kn">from</span> <span class="nn">airflow.models.taskinstance</span> <span class="kn">import</span> <span class="n">TaskInstance</span> |
| <span class="kn">from</span> <span class="nn">airflow.settings</span> <span class="kn">import</span> <span class="n">task_instance_mutation_hook</span> |
| |
| <span class="n">task</span><span class="o">.</span><span class="n">run_time_mapped_ti_count</span><span class="o">.</span><span class="n">cache_clear</span><span class="p">()</span> |
| <span class="n">total_length</span> <span class="o">=</span> <span class="p">(</span> |
| <span class="n">task</span><span class="o">.</span><span class="n">parse_time_mapped_ti_count</span> |
| <span class="ow">or</span> <span class="n">task</span><span class="o">.</span><span class="n">run_time_mapped_ti_count</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> <span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">)</span> |
| <span class="ow">or</span> <span class="mi">0</span> |
| <span class="p">)</span> |
| <span class="n">query</span> <span class="o">=</span> <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="n">TaskInstance</span><span class="o">.</span><span class="n">map_index</span><span class="p">)</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span> |
| <span class="n">TaskInstance</span><span class="o">.</span><span class="n">dag_id</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> |
| <span class="n">TaskInstance</span><span class="o">.</span><span class="n">task_id</span> <span class="o">==</span> <span class="n">task</span><span class="o">.</span><span class="n">task_id</span><span class="p">,</span> |
| <span class="n">TaskInstance</span><span class="o">.</span><span class="n">run_id</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> |
| <span class="p">)</span> |
| <span class="n">existing_indexes</span> <span class="o">=</span> <span class="p">{</span><span class="n">i</span> <span class="k">for</span> <span class="p">(</span><span class="n">i</span><span class="p">,)</span> <span class="ow">in</span> <span class="n">query</span><span class="p">}</span> |
| <span class="n">missing_indexes</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="nb">range</span><span class="p">(</span><span class="n">total_length</span><span class="p">))</span><span class="o">.</span><span class="n">difference</span><span class="p">(</span><span class="n">existing_indexes</span><span class="p">)</span> |
| <span class="n">removed_indexes</span> <span class="o">=</span> <span class="n">existing_indexes</span><span class="o">.</span><span class="n">difference</span><span class="p">(</span><span class="nb">range</span><span class="p">(</span><span class="n">total_length</span><span class="p">))</span> |
| <span class="n">created_tis</span> <span class="o">=</span> <span class="p">[]</span> |
| |
| <span class="k">if</span> <span class="n">missing_indexes</span><span class="p">:</span> |
| <span class="k">for</span> <span class="n">index</span> <span class="ow">in</span> <span class="n">missing_indexes</span><span class="p">:</span> |
| <span class="n">ti</span> <span class="o">=</span> <span class="n">TaskInstance</span><span class="p">(</span><span class="n">task</span><span class="p">,</span> <span class="n">run_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> <span class="n">map_index</span><span class="o">=</span><span class="n">index</span><span class="p">,</span> <span class="n">state</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">log</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">"Expanding TIs upserted </span><span class="si">%s</span><span class="s2">"</span><span class="p">,</span> <span class="n">ti</span><span class="p">)</span> |
| <span class="n">task_instance_mutation_hook</span><span class="p">(</span><span class="n">ti</span><span class="p">)</span> |
| <span class="n">ti</span> <span class="o">=</span> <span class="n">session</span><span class="o">.</span><span class="n">merge</span><span class="p">(</span><span class="n">ti</span><span class="p">)</span> |
| <span class="n">ti</span><span class="o">.</span><span class="n">refresh_from_task</span><span class="p">(</span><span class="n">task</span><span class="p">)</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">flush</span><span class="p">()</span> |
| <span class="n">created_tis</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">ti</span><span class="p">)</span> |
| <span class="k">elif</span> <span class="n">removed_indexes</span><span class="p">:</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="n">TaskInstance</span><span class="p">)</span><span class="o">.</span><span class="n">filter</span><span class="p">(</span> |
| <span class="n">TaskInstance</span><span class="o">.</span><span class="n">dag_id</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> |
| <span class="n">TaskInstance</span><span class="o">.</span><span class="n">task_id</span> <span class="o">==</span> <span class="n">task</span><span class="o">.</span><span class="n">task_id</span><span class="p">,</span> |
| <span class="n">TaskInstance</span><span class="o">.</span><span class="n">run_id</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> |
| <span class="n">TaskInstance</span><span class="o">.</span><span class="n">map_index</span><span class="o">.</span><span class="n">in_</span><span class="p">(</span><span class="n">removed_indexes</span><span class="p">),</span> |
| <span class="p">)</span><span class="o">.</span><span class="n">update</span><span class="p">({</span><span class="n">TaskInstance</span><span class="o">.</span><span class="n">state</span><span class="p">:</span> <span class="n">TaskInstanceState</span><span class="o">.</span><span class="n">REMOVED</span><span class="p">})</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">flush</span><span class="p">()</span> |
| <span class="k">return</span> <span class="n">created_tis</span> |
| |
| <span class="nd">@staticmethod</span> |
| <div class="viewcode-block" id="DagRun.get_run"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.get_run">[docs]</a> <span class="k">def</span> <span class="nf">get_run</span><span class="p">(</span><span class="n">session</span><span class="p">:</span> <span class="n">Session</span><span class="p">,</span> <span class="n">dag_id</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">execution_date</span><span class="p">:</span> <span class="n">datetime</span><span class="p">)</span> <span class="o">-></span> <span class="n">DagRun</span> <span class="o">|</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Get a single DAG Run</span> |
| |
| <span class="sd"> :meta private:</span> |
| <span class="sd"> :param session: Sqlalchemy ORM Session</span> |
| <span class="sd"> :param dag_id: DAG ID</span> |
| <span class="sd"> :param execution_date: execution date</span> |
| <span class="sd"> :return: DagRun corresponding to the given dag_id and execution date</span> |
| <span class="sd"> if one exists. None otherwise.</span> |
| <span class="sd"> :rtype: airflow.models.DagRun</span> |
| <span class="sd"> """</span> |
| <span class="n">warnings</span><span class="o">.</span><span class="n">warn</span><span class="p">(</span> |
| <span class="s2">"This method is deprecated. Please use SQLAlchemy directly"</span><span class="p">,</span> |
| <span class="n">RemovedInAirflow3Warning</span><span class="p">,</span> |
| <span class="n">stacklevel</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span> |
| <span class="p">)</span> |
| <span class="k">return</span> <span class="p">(</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="n">DagRun</span><span class="p">)</span> |
| <span class="o">.</span><span class="n">filter</span><span class="p">(</span> |
| <span class="n">DagRun</span><span class="o">.</span><span class="n">dag_id</span> <span class="o">==</span> <span class="n">dag_id</span><span class="p">,</span> |
| <span class="n">DagRun</span><span class="o">.</span><span class="n">external_trigger</span> <span class="o">==</span> <span class="kc">False</span><span class="p">,</span> <span class="c1"># noqa</span> |
| <span class="n">DagRun</span><span class="o">.</span><span class="n">execution_date</span> <span class="o">==</span> <span class="n">execution_date</span><span class="p">,</span></div> |
| <span class="p">)</span> |
| <span class="o">.</span><span class="n">first</span><span class="p">()</span> |
| <span class="p">)</span> |
| |
| <span class="nd">@property</span> |
| <div class="viewcode-block" id="DagRun.is_backfill"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.is_backfill">[docs]</a> <span class="k">def</span> <span class="nf">is_backfill</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span> |
| <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_type</span> <span class="o">==</span> <span class="n">DagRunType</span><span class="o">.</span><span class="n">BACKFILL_JOB</span></div> |
| |
| <span class="nd">@classmethod</span> |
| <span class="nd">@provide_session</span> |
| <div class="viewcode-block" id="DagRun.get_latest_runs"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.get_latest_runs">[docs]</a> <span class="k">def</span> <span class="nf">get_latest_runs</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">session</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span> <span class="o">-></span> <span class="nb">list</span><span class="p">[</span><span class="n">DagRun</span><span class="p">]:</span> |
| <span class="sd">"""Returns the latest DagRun for each DAG"""</span> |
| <span class="n">subquery</span> <span class="o">=</span> <span class="p">(</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> <span class="n">func</span><span class="o">.</span><span class="n">max</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">execution_date</span><span class="p">)</span><span class="o">.</span><span class="n">label</span><span class="p">(</span><span class="s1">'execution_date'</span><span class="p">))</span> |
| <span class="o">.</span><span class="n">group_by</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">dag_id</span><span class="p">)</span> |
| <span class="o">.</span><span class="n">subquery</span><span class="p">()</span> |
| <span class="p">)</span> |
| <span class="k">return</span> <span class="p">(</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="bp">cls</span><span class="p">)</span> |
| <span class="o">.</span><span class="n">join</span><span class="p">(</span> |
| <span class="n">subquery</span><span class="p">,</span> |
| <span class="n">and_</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">dag_id</span> <span class="o">==</span> <span class="n">subquery</span><span class="o">.</span><span class="n">c</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> <span class="bp">cls</span><span class="o">.</span><span class="n">execution_date</span> <span class="o">==</span> <span class="n">subquery</span><span class="o">.</span><span class="n">c</span><span class="o">.</span><span class="n">execution_date</span><span class="p">),</span></div> |
| <span class="p">)</span> |
| <span class="o">.</span><span class="n">all</span><span class="p">()</span> |
| <span class="p">)</span> |
| |
| <span class="nd">@provide_session</span> |
| <div class="viewcode-block" id="DagRun.schedule_tis"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.schedule_tis">[docs]</a> <span class="k">def</span> <span class="nf">schedule_tis</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">schedulable_tis</span><span class="p">:</span> <span class="n">Iterable</span><span class="p">[</span><span class="n">TI</span><span class="p">],</span> <span class="n">session</span><span class="p">:</span> <span class="n">Session</span> <span class="o">=</span> <span class="n">NEW_SESSION</span><span class="p">)</span> <span class="o">-></span> <span class="nb">int</span><span class="p">:</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Set the given task instances in to the scheduled state.</span> |
| |
| <span class="sd"> Each element of ``schedulable_tis`` should have it's ``task`` attribute already set.</span> |
| |
| <span class="sd"> Any EmptyOperator without callbacks or outlets is instead set straight to the success state.</span> |
| |
| <span class="sd"> All the TIs should belong to this DagRun, but this code is in the hot-path, this is not checked -- it</span> |
| <span class="sd"> is the caller's responsibility to call this function only with TIs from a single dag run.</span> |
| <span class="sd"> """</span> |
| <span class="c1"># Get list of TI IDs that do not need to executed, these are</span> |
| <span class="c1"># tasks using EmptyOperator and without on_execute_callback / on_success_callback</span> |
| <span class="n">dummy_ti_ids</span> <span class="o">=</span> <span class="p">[]</span> |
| <span class="n">schedulable_ti_ids</span> <span class="o">=</span> <span class="p">[]</span> |
| <span class="k">for</span> <span class="n">ti</span> <span class="ow">in</span> <span class="n">schedulable_tis</span><span class="p">:</span> |
| <span class="k">if</span> <span class="p">(</span> |
| <span class="n">ti</span><span class="o">.</span><span class="n">task</span><span class="o">.</span><span class="n">inherits_from_empty_operator</span> |
| <span class="ow">and</span> <span class="ow">not</span> <span class="n">ti</span><span class="o">.</span><span class="n">task</span><span class="o">.</span><span class="n">on_execute_callback</span> |
| <span class="ow">and</span> <span class="ow">not</span> <span class="n">ti</span><span class="o">.</span><span class="n">task</span><span class="o">.</span><span class="n">on_success_callback</span> |
| <span class="ow">and</span> <span class="ow">not</span> <span class="n">ti</span><span class="o">.</span><span class="n">task</span><span class="o">.</span><span class="n">outlets</span> |
| <span class="p">):</span> |
| <span class="n">dummy_ti_ids</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">ti</span><span class="o">.</span><span class="n">task_id</span><span class="p">)</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="n">schedulable_ti_ids</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">ti</span><span class="o">.</span><span class="n">task_id</span><span class="p">,</span> <span class="n">ti</span><span class="o">.</span><span class="n">map_index</span><span class="p">))</span> |
| |
| <span class="n">count</span> <span class="o">=</span> <span class="mi">0</span> |
| |
| <span class="k">if</span> <span class="n">schedulable_ti_ids</span><span class="p">:</span> |
| <span class="n">count</span> <span class="o">+=</span> <span class="p">(</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="n">TI</span><span class="p">)</span> |
| <span class="o">.</span><span class="n">filter</span><span class="p">(</span> |
| <span class="n">TI</span><span class="o">.</span><span class="n">dag_id</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> |
| <span class="n">TI</span><span class="o">.</span><span class="n">run_id</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> |
| <span class="n">tuple_in_condition</span><span class="p">((</span><span class="n">TI</span><span class="o">.</span><span class="n">task_id</span><span class="p">,</span> <span class="n">TI</span><span class="o">.</span><span class="n">map_index</span><span class="p">),</span> <span class="n">schedulable_ti_ids</span><span class="p">),</span> |
| <span class="p">)</span> |
| <span class="o">.</span><span class="n">update</span><span class="p">({</span><span class="n">TI</span><span class="o">.</span><span class="n">state</span><span class="p">:</span> <span class="n">State</span><span class="o">.</span><span class="n">SCHEDULED</span><span class="p">},</span> <span class="n">synchronize_session</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> |
| <span class="p">)</span> |
| |
| <span class="c1"># Tasks using EmptyOperator should not be executed, mark them as success</span> |
| <span class="k">if</span> <span class="n">dummy_ti_ids</span><span class="p">:</span> |
| <span class="n">count</span> <span class="o">+=</span> <span class="p">(</span> |
| <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="n">TI</span><span class="p">)</span> |
| <span class="o">.</span><span class="n">filter</span><span class="p">(</span> |
| <span class="n">TI</span><span class="o">.</span><span class="n">dag_id</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span><span class="p">,</span> |
| <span class="n">TI</span><span class="o">.</span><span class="n">run_id</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_id</span><span class="p">,</span> |
| <span class="n">TI</span><span class="o">.</span><span class="n">task_id</span><span class="o">.</span><span class="n">in_</span><span class="p">(</span><span class="n">dummy_ti_ids</span><span class="p">),</span> |
| <span class="p">)</span> |
| <span class="o">.</span><span class="n">update</span><span class="p">(</span> |
| <span class="p">{</span> |
| <span class="n">TI</span><span class="o">.</span><span class="n">state</span><span class="p">:</span> <span class="n">State</span><span class="o">.</span><span class="n">SUCCESS</span><span class="p">,</span> |
| <span class="n">TI</span><span class="o">.</span><span class="n">start_date</span><span class="p">:</span> <span class="n">timezone</span><span class="o">.</span><span class="n">utcnow</span><span class="p">(),</span> |
| <span class="n">TI</span><span class="o">.</span><span class="n">end_date</span><span class="p">:</span> <span class="n">timezone</span><span class="o">.</span><span class="n">utcnow</span><span class="p">(),</span> |
| <span class="n">TI</span><span class="o">.</span><span class="n">duration</span><span class="p">:</span> <span class="mi">0</span><span class="p">,</span> |
| <span class="p">},</span> |
| <span class="n">synchronize_session</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> |
| <span class="p">)</span> |
| <span class="p">)</span> |
| |
| <span class="k">return</span> <span class="n">count</span></div> |
| |
| <span class="nd">@provide_session</span> |
| <div class="viewcode-block" id="DagRun.get_log_template"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.get_log_template">[docs]</a> <span class="k">def</span> <span class="nf">get_log_template</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="p">,</span> <span class="n">session</span><span class="p">:</span> <span class="n">Session</span> <span class="o">=</span> <span class="n">NEW_SESSION</span><span class="p">)</span> <span class="o">-></span> <span class="n">LogTemplate</span><span class="p">:</span> |
| <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">log_template_id</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> <span class="c1"># DagRun created before LogTemplate introduction.</span> |
| <span class="n">template</span> <span class="o">=</span> <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="n">LogTemplate</span><span class="p">)</span><span class="o">.</span><span class="n">order_by</span><span class="p">(</span><span class="n">LogTemplate</span><span class="o">.</span><span class="n">id</span><span class="p">)</span><span class="o">.</span><span class="n">first</span><span class="p">()</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="n">template</span> <span class="o">=</span> <span class="n">session</span><span class="o">.</span><span class="n">query</span><span class="p">(</span><span class="n">LogTemplate</span><span class="p">)</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">log_template_id</span><span class="p">)</span> |
| <span class="k">if</span> <span class="n">template</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="k">raise</span> <span class="n">AirflowException</span><span class="p">(</span> |
| <span class="sa">f</span><span class="s2">"No log_template entry found for ID </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">log_template_id</span><span class="si">!r}</span><span class="s2">. "</span> |
| <span class="sa">f</span><span class="s2">"Please make sure you set up the metadatabase correctly."</span> |
| <span class="p">)</span> |
| <span class="k">return</span> <span class="n">template</span></div> |
| |
| <span class="nd">@provide_session</span> |
| <div class="viewcode-block" id="DagRun.get_log_filename_template"><a class="viewcode-back" href="../../../_api/airflow/models/dagrun/index.html#airflow.models.dagrun.DagRun.get_log_filename_template">[docs]</a> <span class="k">def</span> <span class="nf">get_log_filename_template</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="p">,</span> <span class="n">session</span><span class="p">:</span> <span class="n">Session</span> <span class="o">=</span> <span class="n">NEW_SESSION</span><span class="p">)</span> <span class="o">-></span> <span class="nb">str</span><span class="p">:</span> |
| <span class="n">warnings</span><span class="o">.</span><span class="n">warn</span><span class="p">(</span> |
| <span class="s2">"This method is deprecated. Please use get_log_template instead."</span><span class="p">,</span> |
| <span class="n">RemovedInAirflow3Warning</span><span class="p">,</span> |
| <span class="n">stacklevel</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span> |
| <span class="p">)</span> |
| <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_log_template</span><span class="p">(</span><span class="n">session</span><span class="o">=</span><span class="n">session</span><span class="p">)</span><span class="o">.</span><span class="n">filename</span></div></div> |
| </pre></div> |
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