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| <h1>Source code for airflow.contrib.hooks.qubole_hook</h1><div class="highlight"><pre> |
| <span></span><span class="c1"># -*- coding: utf-8 -*-</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="c1">#</span> |
| <span class="sd">"""Qubole hook"""</span> |
| <span class="kn">import</span> <span class="nn">os</span> |
| <span class="kn">import</span> <span class="nn">time</span> |
| <span class="kn">import</span> <span class="nn">datetime</span> |
| <span class="kn">import</span> <span class="nn">six</span> |
| |
| <span class="kn">from</span> <span class="nn">qds_sdk.qubole</span> <span class="kn">import</span> <span class="n">Qubole</span> |
| <span class="kn">from</span> <span class="nn">qds_sdk.commands</span> <span class="kn">import</span> <span class="n">Command</span><span class="p">,</span> <span class="n">HiveCommand</span><span class="p">,</span> <span class="n">PrestoCommand</span><span class="p">,</span> <span class="n">HadoopCommand</span><span class="p">,</span> \ |
| <span class="n">PigCommand</span><span class="p">,</span> <span class="n">ShellCommand</span><span class="p">,</span> <span class="n">SparkCommand</span><span class="p">,</span> <span class="n">DbTapQueryCommand</span><span class="p">,</span> <span class="n">DbExportCommand</span><span class="p">,</span> \ |
| <span class="n">DbImportCommand</span><span class="p">,</span> <span class="n">SqlCommand</span> |
| |
| <span class="kn">from</span> <span class="nn">airflow.exceptions</span> <span class="kn">import</span> <span class="n">AirflowException</span> |
| <span class="kn">from</span> <span class="nn">airflow.hooks.base_hook</span> <span class="kn">import</span> <span class="n">BaseHook</span> |
| <span class="kn">from</span> <span class="nn">airflow.configuration</span> <span class="kn">import</span> <span class="n">conf</span><span class="p">,</span> <span class="n">mkdir_p</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.state</span> <span class="kn">import</span> <span class="n">State</span> |
| |
| <div class="viewcode-block" id="COMMAND_CLASSES"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/qubole_hook/index.html#airflow.contrib.hooks.qubole_hook.COMMAND_CLASSES">[docs]</a><span class="n">COMMAND_CLASSES</span> <span class="o">=</span> <span class="p">{</span> |
| <span class="s2">"hivecmd"</span><span class="p">:</span> <span class="n">HiveCommand</span><span class="p">,</span> |
| <span class="s2">"prestocmd"</span><span class="p">:</span> <span class="n">PrestoCommand</span><span class="p">,</span> |
| <span class="s2">"hadoopcmd"</span><span class="p">:</span> <span class="n">HadoopCommand</span><span class="p">,</span> |
| <span class="s2">"shellcmd"</span><span class="p">:</span> <span class="n">ShellCommand</span><span class="p">,</span> |
| <span class="s2">"pigcmd"</span><span class="p">:</span> <span class="n">PigCommand</span><span class="p">,</span> |
| <span class="s2">"sparkcmd"</span><span class="p">:</span> <span class="n">SparkCommand</span><span class="p">,</span> |
| <span class="s2">"dbtapquerycmd"</span><span class="p">:</span> <span class="n">DbTapQueryCommand</span><span class="p">,</span> |
| <span class="s2">"dbexportcmd"</span><span class="p">:</span> <span class="n">DbExportCommand</span><span class="p">,</span> |
| <span class="s2">"dbimportcmd"</span><span class="p">:</span> <span class="n">DbImportCommand</span><span class="p">,</span> |
| <span class="s2">"sqlcmd"</span><span class="p">:</span> <span class="n">SqlCommand</span></div> |
| <span class="p">}</span> |
| |
| <div class="viewcode-block" id="POSITIONAL_ARGS"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/qubole_hook/index.html#airflow.contrib.hooks.qubole_hook.POSITIONAL_ARGS">[docs]</a><span class="n">POSITIONAL_ARGS</span> <span class="o">=</span> <span class="p">{</span> |
| <span class="s1">'hadoopcmd'</span><span class="p">:</span> <span class="p">[</span><span class="s1">'sub_command'</span><span class="p">],</span> |
| <span class="s1">'shellcmd'</span><span class="p">:</span> <span class="p">[</span><span class="s1">'parameters'</span><span class="p">],</span> |
| <span class="s1">'pigcmd'</span><span class="p">:</span> <span class="p">[</span><span class="s1">'parameters'</span><span class="p">]</span></div> |
| <span class="p">}</span> |
| |
| |
| <div class="viewcode-block" id="flatten_list"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/qubole_hook/index.html#airflow.contrib.hooks.qubole_hook.flatten_list">[docs]</a><span class="k">def</span> <span class="nf">flatten_list</span><span class="p">(</span><span class="n">list_of_lists</span><span class="p">):</span> |
| <span class="sd">"""Flatten the list"""</span> |
| <span class="k">return</span> <span class="p">[</span><span class="n">element</span> <span class="k">for</span> <span class="n">array</span> <span class="ow">in</span> <span class="n">list_of_lists</span> <span class="k">for</span> <span class="n">element</span> <span class="ow">in</span> <span class="n">array</span><span class="p">]</span></div> |
| |
| |
| <div class="viewcode-block" id="filter_options"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/qubole_hook/index.html#airflow.contrib.hooks.qubole_hook.filter_options">[docs]</a><span class="k">def</span> <span class="nf">filter_options</span><span class="p">(</span><span class="n">options</span><span class="p">):</span> |
| <span class="sd">"""Remove options from the list"""</span> |
| <span class="n">options_to_remove</span> <span class="o">=</span> <span class="p">[</span><span class="s2">"help"</span><span class="p">,</span> <span class="s2">"print-logs-live"</span><span class="p">,</span> <span class="s2">"print-logs"</span><span class="p">]</span> |
| <span class="k">return</span> <span class="p">[</span><span class="n">option</span> <span class="k">for</span> <span class="n">option</span> <span class="ow">in</span> <span class="n">options</span> <span class="k">if</span> <span class="n">option</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">options_to_remove</span><span class="p">]</span></div> |
| |
| |
| <div class="viewcode-block" id="get_options_list"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/qubole_hook/index.html#airflow.contrib.hooks.qubole_hook.get_options_list">[docs]</a><span class="k">def</span> <span class="nf">get_options_list</span><span class="p">(</span><span class="n">command_class</span><span class="p">):</span> |
| <span class="sd">"""Get options list"""</span> |
| <span class="n">options_list</span> <span class="o">=</span> <span class="p">[</span><span class="n">option</span><span class="o">.</span><span class="n">get_opt_string</span><span class="p">()</span><span class="o">.</span><span class="n">strip</span><span class="p">(</span><span class="s2">"--"</span><span class="p">)</span> <span class="k">for</span> <span class="n">option</span> <span class="ow">in</span> <span class="n">command_class</span><span class="o">.</span><span class="n">optparser</span><span class="o">.</span><span class="n">option_list</span><span class="p">]</span> |
| <span class="k">return</span> <span class="n">filter_options</span><span class="p">(</span><span class="n">options_list</span><span class="p">)</span></div> |
| |
| |
| <div class="viewcode-block" id="build_command_args"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/qubole_hook/index.html#airflow.contrib.hooks.qubole_hook.build_command_args">[docs]</a><span class="k">def</span> <span class="nf">build_command_args</span><span class="p">():</span> |
| <span class="sd">"""Build Command argument from command and options"""</span> |
| <span class="n">command_args</span><span class="p">,</span> <span class="n">hyphen_args</span> <span class="o">=</span> <span class="p">{},</span> <span class="nb">set</span><span class="p">()</span> |
| <span class="k">for</span> <span class="n">cmd</span> <span class="ow">in</span> <span class="n">COMMAND_CLASSES</span><span class="p">:</span> |
| |
| <span class="c1"># get all available options from the class</span> |
| <span class="n">opts_list</span> <span class="o">=</span> <span class="n">get_options_list</span><span class="p">(</span><span class="n">COMMAND_CLASSES</span><span class="p">[</span><span class="n">cmd</span><span class="p">])</span> |
| |
| <span class="c1"># append positional args if any for the command</span> |
| <span class="k">if</span> <span class="n">cmd</span> <span class="ow">in</span> <span class="n">POSITIONAL_ARGS</span><span class="p">:</span> |
| <span class="n">opts_list</span> <span class="o">+=</span> <span class="n">POSITIONAL_ARGS</span><span class="p">[</span><span class="n">cmd</span><span class="p">]</span> |
| |
| <span class="c1"># get args with a hyphen and replace them with underscore</span> |
| <span class="k">for</span> <span class="n">index</span><span class="p">,</span> <span class="n">opt</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">opts_list</span><span class="p">):</span> |
| <span class="k">if</span> <span class="s2">"-"</span> <span class="ow">in</span> <span class="n">opt</span><span class="p">:</span> |
| <span class="n">opts_list</span><span class="p">[</span><span class="n">index</span><span class="p">]</span> <span class="o">=</span> <span class="n">opt</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s2">"-"</span><span class="p">,</span> <span class="s2">"_"</span><span class="p">)</span> |
| <span class="n">hyphen_args</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">opts_list</span><span class="p">[</span><span class="n">index</span><span class="p">])</span> |
| |
| <span class="n">command_args</span><span class="p">[</span><span class="n">cmd</span><span class="p">]</span> <span class="o">=</span> <span class="n">opts_list</span> |
| <span class="k">return</span> <span class="n">command_args</span><span class="p">,</span> <span class="nb">list</span><span class="p">(</span><span class="n">hyphen_args</span><span class="p">)</span></div> |
| |
| |
| <span class="n">COMMAND_ARGS</span><span class="p">,</span> <span class="n">HYPHEN_ARGS</span> <span class="o">=</span> <span class="n">build_command_args</span><span class="p">()</span> |
| |
| |
| <div class="viewcode-block" id="QuboleHook"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/qubole_hook/index.html#airflow.contrib.hooks.qubole_hook.QuboleHook">[docs]</a><span class="k">class</span> <span class="nc">QuboleHook</span><span class="p">(</span><span class="n">BaseHook</span><span class="p">):</span> |
| <span class="sd">"""Hook for Qubole communication"""</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="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span> <span class="c1"># pylint: disable=unused-argument</span> |
| <span class="n">conn</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_connection</span><span class="p">(</span><span class="n">kwargs</span><span class="p">[</span><span class="s1">'qubole_conn_id'</span><span class="p">])</span> |
| <span class="n">Qubole</span><span class="o">.</span><span class="n">configure</span><span class="p">(</span><span class="n">api_token</span><span class="o">=</span><span class="n">conn</span><span class="o">.</span><span class="n">password</span><span class="p">,</span> <span class="n">api_url</span><span class="o">=</span><span class="n">conn</span><span class="o">.</span><span class="n">host</span><span class="p">)</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">task_id</span> <span class="o">=</span> <span class="n">kwargs</span><span class="p">[</span><span class="s1">'task_id'</span><span class="p">]</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span> <span class="o">=</span> <span class="n">kwargs</span><span class="p">[</span><span class="s1">'dag'</span><span class="p">]</span><span class="o">.</span><span class="n">dag_id</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">kwargs</span> <span class="o">=</span> <span class="n">kwargs</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">cls</span> <span class="o">=</span> <span class="n">COMMAND_CLASSES</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">kwargs</span><span class="p">[</span><span class="s1">'command_type'</span><span class="p">]]</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span> <span class="o">=</span> <span class="kc">None</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">task_instance</span> <span class="o">=</span> <span class="kc">None</span> |
| |
| <span class="nd">@staticmethod</span> |
| <div class="viewcode-block" id="QuboleHook.handle_failure_retry"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/qubole_hook/index.html#airflow.contrib.hooks.qubole_hook.QuboleHook.handle_failure_retry">[docs]</a> <span class="k">def</span> <span class="nf">handle_failure_retry</span><span class="p">(</span><span class="n">context</span><span class="p">):</span> |
| <span class="sd">"""Handle retries in case of failures"""</span> |
| <span class="n">ti</span> <span class="o">=</span> <span class="n">context</span><span class="p">[</span><span class="s1">'ti'</span><span class="p">]</span> |
| <span class="n">cmd_id</span> <span class="o">=</span> <span class="n">ti</span><span class="o">.</span><span class="n">xcom_pull</span><span class="p">(</span><span class="n">key</span><span class="o">=</span><span class="s1">'qbol_cmd_id'</span><span class="p">,</span> <span class="n">task_ids</span><span class="o">=</span><span class="n">ti</span><span class="o">.</span><span class="n">task_id</span><span class="p">)</span> |
| |
| <span class="k">if</span> <span class="n">cmd_id</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="n">cmd</span> <span class="o">=</span> <span class="n">Command</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">cmd_id</span><span class="p">)</span> |
| <span class="k">if</span> <span class="n">cmd</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="n">log</span> <span class="o">=</span> <span class="n">LoggingMixin</span><span class="p">()</span><span class="o">.</span><span class="n">log</span> |
| <span class="k">if</span> <span class="n">cmd</span><span class="o">.</span><span class="n">status</span> <span class="o">==</span> <span class="s1">'done'</span><span class="p">:</span> |
| <span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'Command ID: </span><span class="si">%s</span><span class="s1"> has been succeeded, hence marking this '</span> |
| <span class="s1">'TI as Success.'</span><span class="p">,</span> <span class="n">cmd_id</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">SUCCESS</span> |
| <span class="k">elif</span> <span class="n">cmd</span><span class="o">.</span><span class="n">status</span> <span class="o">==</span> <span class="s1">'running'</span><span class="p">:</span> |
| <span class="n">log</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s1">'Cancelling the Qubole Command Id: </span><span class="si">%s</span><span class="s1">'</span><span class="p">,</span> <span class="n">cmd_id</span><span class="p">)</span> |
| <span class="n">cmd</span><span class="o">.</span><span class="n">cancel</span><span class="p">()</span></div> |
| |
| <div class="viewcode-block" id="QuboleHook.execute"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/qubole_hook/index.html#airflow.contrib.hooks.qubole_hook.QuboleHook.execute">[docs]</a> <span class="k">def</span> <span class="nf">execute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> |
| <span class="sd">"""Execute call"""</span> |
| <span class="n">args</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">cls</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">create_cmd_args</span><span class="p">(</span><span class="n">context</span><span class="p">))</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">cls</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="o">**</span><span class="n">args</span><span class="p">)</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">task_instance</span> <span class="o">=</span> <span class="n">context</span><span class="p">[</span><span class="s1">'task_instance'</span><span class="p">]</span> |
| <span class="n">context</span><span class="p">[</span><span class="s1">'task_instance'</span><span class="p">]</span><span class="o">.</span><span class="n">xcom_push</span><span class="p">(</span><span class="n">key</span><span class="o">=</span><span class="s1">'qbol_cmd_id'</span><span class="p">,</span> <span class="n">value</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">cmd</span><span class="o">.</span><span class="n">id</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">"Qubole command created with Id: </span><span class="si">%s</span><span class="s2"> and Status: </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">cmd</span><span class="o">.</span><span class="n">id</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span><span class="o">.</span><span class="n">status</span> |
| <span class="p">)</span> |
| |
| <span class="k">while</span> <span class="ow">not</span> <span class="n">Command</span><span class="o">.</span><span class="n">is_done</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">cmd</span><span class="o">.</span><span class="n">status</span><span class="p">):</span> |
| <span class="n">time</span><span class="o">.</span><span class="n">sleep</span><span class="p">(</span><span class="n">Qubole</span><span class="o">.</span><span class="n">poll_interval</span><span class="p">)</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">cls</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">cmd</span><span class="o">.</span><span class="n">id</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">"Command Id: </span><span class="si">%s</span><span class="s2"> and Status: </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">cmd</span><span class="o">.</span><span class="n">id</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span><span class="o">.</span><span class="n">status</span><span class="p">)</span> |
| |
| <span class="k">if</span> <span class="s1">'fetch_logs'</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">kwargs</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">kwargs</span><span class="p">[</span><span class="s1">'fetch_logs'</span><span class="p">]</span> <span class="ow">is</span> <span class="kc">True</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">"Logs for Command Id: </span><span class="si">%s</span><span class="s2"> </span><span class="se">\n</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">cmd</span><span class="o">.</span><span class="n">id</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span><span class="o">.</span><span class="n">get_log</span><span class="p">())</span> |
| |
| <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span><span class="o">.</span><span class="n">status</span> <span class="o">!=</span> <span class="s1">'done'</span><span class="p">:</span> |
| <span class="k">raise</span> <span class="n">AirflowException</span><span class="p">(</span><span class="s1">'Command Id: </span><span class="si">{0}</span><span class="s1"> failed with Status: </span><span class="si">{1}</span><span class="s1">'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span><span class="o">.</span><span class="n">id</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span><span class="o">.</span><span class="n">status</span><span class="p">))</span></div> |
| |
| <div class="viewcode-block" id="QuboleHook.kill"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/qubole_hook/index.html#airflow.contrib.hooks.qubole_hook.QuboleHook.kill">[docs]</a> <span class="k">def</span> <span class="nf">kill</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">ti</span><span class="p">):</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Kill (cancel) a Qubole command</span> |
| |
| <span class="sd"> :param ti: Task Instance of the dag, used to determine the Quboles command id</span> |
| <span class="sd"> :return: response from Qubole</span> |
| <span class="sd"> """</span> |
| <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="k">if</span> <span class="ow">not</span> <span class="n">ti</span> <span class="ow">and</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">task_instance</span><span class="p">:</span> |
| <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s2">"Unable to cancel Qubole Command, context is unavailable!"</span><span class="p">)</span> |
| <span class="k">elif</span> <span class="ow">not</span> <span class="n">ti</span><span class="p">:</span> |
| <span class="n">ti</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">task_instance</span> |
| <span class="n">cmd_id</span> <span class="o">=</span> <span class="n">ti</span><span class="o">.</span><span class="n">xcom_pull</span><span class="p">(</span><span class="n">key</span><span class="o">=</span><span class="s2">"qbol_cmd_id"</span><span class="p">,</span> <span class="n">task_ids</span><span class="o">=</span><span class="n">ti</span><span class="o">.</span><span class="n">task_id</span><span class="p">)</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">cls</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">cmd_id</span><span class="p">)</span> |
| <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">cls</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">cmd</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">'Sending KILL signal to Qubole Command Id: </span><span class="si">%s</span><span class="s1">'</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span><span class="o">.</span><span class="n">id</span><span class="p">)</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span><span class="o">.</span><span class="n">cancel</span><span class="p">()</span></div> |
| |
| <div class="viewcode-block" id="QuboleHook.get_results"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/qubole_hook/index.html#airflow.contrib.hooks.qubole_hook.QuboleHook.get_results">[docs]</a> <span class="k">def</span> <span class="nf">get_results</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">ti</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">fp</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">inline</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">delim</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">fetch</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Get results (or just s3 locations) of a command from Qubole and save into a file</span> |
| |
| <span class="sd"> :param ti: Task Instance of the dag, used to determine the Quboles command id</span> |
| <span class="sd"> :param fp: Optional file pointer, will create one and return if None passed</span> |
| <span class="sd"> :param inline: True to download actual results, False to get s3 locations only</span> |
| <span class="sd"> :param delim: Replaces the CTL-A chars with the given delim, defaults to ','</span> |
| <span class="sd"> :param fetch: when inline is True, get results directly from s3 (if large)</span> |
| <span class="sd"> :return: file location containing actual results or s3 locations of results</span> |
| <span class="sd"> """</span> |
| <span class="k">if</span> <span class="n">fp</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="n">iso</span> <span class="o">=</span> <span class="n">datetime</span><span class="o">.</span><span class="n">datetime</span><span class="o">.</span><span class="n">utcnow</span><span class="p">()</span><span class="o">.</span><span class="n">isoformat</span><span class="p">()</span> |
| <span class="n">logpath</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">expanduser</span><span class="p">(</span> |
| <span class="n">conf</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'core'</span><span class="p">,</span> <span class="s1">'BASE_LOG_FOLDER'</span><span class="p">)</span> |
| <span class="p">)</span> |
| <span class="n">resultpath</span> <span class="o">=</span> <span class="n">logpath</span> <span class="o">+</span> <span class="s1">'/'</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">dag_id</span> <span class="o">+</span> <span class="s1">'/'</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">task_id</span> <span class="o">+</span> <span class="s1">'/results'</span> |
| <span class="n">mkdir_p</span><span class="p">(</span><span class="n">resultpath</span><span class="p">)</span> |
| <span class="n">fp</span> <span class="o">=</span> <span class="nb">open</span><span class="p">(</span><span class="n">resultpath</span> <span class="o">+</span> <span class="s1">'/'</span> <span class="o">+</span> <span class="n">iso</span><span class="p">,</span> <span class="s1">'wb'</span><span class="p">)</span> |
| |
| <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="n">cmd_id</span> <span class="o">=</span> <span class="n">ti</span><span class="o">.</span><span class="n">xcom_pull</span><span class="p">(</span><span class="n">key</span><span class="o">=</span><span class="s2">"qbol_cmd_id"</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">task_id</span><span class="p">)</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">cls</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">cmd_id</span><span class="p">)</span> |
| |
| <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span><span class="o">.</span><span class="n">get_results</span><span class="p">(</span><span class="n">fp</span><span class="p">,</span> <span class="n">inline</span><span class="p">,</span> <span class="n">delim</span><span class="p">,</span> <span class="n">fetch</span><span class="p">)</span> |
| <span class="n">fp</span><span class="o">.</span><span class="n">flush</span><span class="p">()</span> |
| <span class="n">fp</span><span class="o">.</span><span class="n">close</span><span class="p">()</span> |
| <span class="k">return</span> <span class="n">fp</span><span class="o">.</span><span class="n">name</span></div> |
| |
| <div class="viewcode-block" id="QuboleHook.get_log"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/qubole_hook/index.html#airflow.contrib.hooks.qubole_hook.QuboleHook.get_log">[docs]</a> <span class="k">def</span> <span class="nf">get_log</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">ti</span><span class="p">):</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Get Logs of a command from Qubole</span> |
| |
| <span class="sd"> :param ti: Task Instance of the dag, used to determine the Quboles command id</span> |
| <span class="sd"> :return: command log as text</span> |
| <span class="sd"> """</span> |
| <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="n">cmd_id</span> <span class="o">=</span> <span class="n">ti</span><span class="o">.</span><span class="n">xcom_pull</span><span class="p">(</span><span class="n">key</span><span class="o">=</span><span class="s2">"qbol_cmd_id"</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">task_id</span><span class="p">)</span> |
| <span class="n">Command</span><span class="o">.</span><span class="n">get_log_id</span><span class="p">(</span><span class="n">cmd_id</span><span class="p">)</span></div> |
| |
| <div class="viewcode-block" id="QuboleHook.get_jobs_id"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/qubole_hook/index.html#airflow.contrib.hooks.qubole_hook.QuboleHook.get_jobs_id">[docs]</a> <span class="k">def</span> <span class="nf">get_jobs_id</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">ti</span><span class="p">):</span> |
| <span class="sd">"""</span> |
| <span class="sd"> Get jobs associated with a Qubole commands</span> |
| |
| <span class="sd"> :param ti: Task Instance of the dag, used to determine the Quboles command id</span> |
| <span class="sd"> :return: Job information associated with command</span> |
| <span class="sd"> """</span> |
| <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">cmd</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="n">cmd_id</span> <span class="o">=</span> <span class="n">ti</span><span class="o">.</span><span class="n">xcom_pull</span><span class="p">(</span><span class="n">key</span><span class="o">=</span><span class="s2">"qbol_cmd_id"</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">task_id</span><span class="p">)</span> |
| <span class="n">Command</span><span class="o">.</span><span class="n">get_jobs_id</span><span class="p">(</span><span class="n">cmd_id</span><span class="p">)</span></div> |
| |
| <div class="viewcode-block" id="QuboleHook.create_cmd_args"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/qubole_hook/index.html#airflow.contrib.hooks.qubole_hook.QuboleHook.create_cmd_args">[docs]</a> <span class="k">def</span> <span class="nf">create_cmd_args</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span> |
| <span class="sd">"""Creates command arguments"""</span> |
| <span class="n">args</span> <span class="o">=</span> <span class="p">[]</span> |
| <span class="n">cmd_type</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">kwargs</span><span class="p">[</span><span class="s1">'command_type'</span><span class="p">]</span> |
| <span class="n">inplace_args</span> <span class="o">=</span> <span class="kc">None</span> |
| <span class="n">tags</span> <span class="o">=</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">task_id</span><span class="p">,</span> <span class="n">context</span><span class="p">[</span><span class="s1">'run_id'</span><span class="p">]}</span> |
| <span class="n">positional_args_list</span> <span class="o">=</span> <span class="n">flatten_list</span><span class="p">(</span><span class="n">POSITIONAL_ARGS</span><span class="o">.</span><span class="n">values</span><span class="p">())</span> |
| |
| <span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">kwargs</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> |
| <span class="k">if</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">COMMAND_ARGS</span><span class="p">[</span><span class="n">cmd_type</span><span class="p">]:</span> |
| <span class="k">if</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">HYPHEN_ARGS</span><span class="p">:</span> |
| <span class="n">args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">"--</span><span class="si">{0}</span><span class="s2">=</span><span class="si">{1}</span><span class="s2">"</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">k</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">'_'</span><span class="p">,</span> <span class="s1">'-'</span><span class="p">),</span> <span class="n">v</span><span class="p">))</span> |
| <span class="k">elif</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">positional_args_list</span><span class="p">:</span> |
| <span class="n">inplace_args</span> <span class="o">=</span> <span class="n">v</span> |
| <span class="k">elif</span> <span class="n">k</span> <span class="o">==</span> <span class="s1">'tags'</span><span class="p">:</span> |
| <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">v</span><span class="p">,</span> <span class="n">six</span><span class="o">.</span><span class="n">string_types</span><span class="p">):</span> |
| <span class="n">tags</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">v</span><span class="p">)</span> |
| <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">v</span><span class="p">,</span> <span class="p">(</span><span class="nb">list</span><span class="p">,</span> <span class="nb">tuple</span><span class="p">)):</span> |
| <span class="k">for</span> <span class="n">val</span> <span class="ow">in</span> <span class="n">v</span><span class="p">:</span> |
| <span class="n">tags</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">val</span><span class="p">)</span> |
| <span class="k">for</span> <span class="n">key</span><span class="p">,</span> <span class="n">value</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">kwargs</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> |
| <span class="k">if</span> <span class="n">key</span> <span class="ow">in</span> <span class="n">COMMAND_ARGS</span><span class="p">[</span><span class="n">cmd_type</span><span class="p">]:</span> |
| <span class="k">if</span> <span class="n">key</span> <span class="ow">in</span> <span class="n">HYPHEN_ARGS</span><span class="p">:</span> |
| <span class="n">args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">"--</span><span class="si">{0}</span><span class="s2">=</span><span class="si">{1}</span><span class="s2">"</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">key</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">'_'</span><span class="p">,</span> <span class="s1">'-'</span><span class="p">),</span> <span class="n">value</span><span class="p">))</span> |
| <span class="k">elif</span> <span class="n">key</span> <span class="ow">in</span> <span class="n">positional_args_list</span><span class="p">:</span> |
| <span class="n">inplace_args</span> <span class="o">=</span> <span class="n">value</span> |
| <span class="k">elif</span> <span class="n">key</span> <span class="o">==</span> <span class="s1">'tags'</span><span class="p">:</span> |
| <span class="bp">self</span><span class="o">.</span><span class="n">_add_tags</span><span class="p">(</span><span class="n">tags</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span> |
| <span class="k">else</span><span class="p">:</span> |
| <span class="n">args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">"--</span><span class="si">{0}</span><span class="s2">=</span><span class="si">{1}</span><span class="s2">"</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">value</span><span class="p">))</span> |
| |
| <span class="k">if</span> <span class="n">key</span> <span class="o">==</span> <span class="s1">'notify'</span> <span class="ow">and</span> <span class="n">value</span> <span class="ow">is</span> <span class="kc">True</span><span class="p">:</span> |
| <span class="n">args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">"--notify"</span><span class="p">)</span> |
| |
| <span class="n">args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s2">"--tags=</span><span class="si">{0}</span><span class="s2">"</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="s1">','</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="nb">filter</span><span class="p">(</span><span class="kc">None</span><span class="p">,</span> <span class="n">tags</span><span class="p">))))</span> |
| |
| <span class="k">if</span> <span class="n">inplace_args</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> |
| <span class="n">args</span> <span class="o">+=</span> <span class="n">inplace_args</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">' '</span><span class="p">)</span> |
| |
| <span class="k">return</span> <span class="n">args</span></div> |
| |
| <span class="nd">@staticmethod</span> |
| <div class="viewcode-block" id="QuboleHook._add_tags"><a class="viewcode-back" href="../../../../_api/airflow/contrib/hooks/qubole_hook/index.html#airflow.contrib.hooks.qubole_hook.QuboleHook._add_tags">[docs]</a> <span class="k">def</span> <span class="nf">_add_tags</span><span class="p">(</span><span class="n">tags</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span> |
| <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">six</span><span class="o">.</span><span class="n">string_types</span><span class="p">):</span> |
| <span class="n">tags</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> |
| <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="p">(</span><span class="nb">list</span><span class="p">,</span> <span class="nb">tuple</span><span class="p">)):</span> |
| <span class="n">tags</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">value</span><span class="p">)</span></div></div> |
| </pre></div> |
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