Google Git
Sign in
apache / beam-site / refs/heads/updates_release_2.15.0 / . / pydoc / 2.15.0 / _modules / apache_beam / metrics / monitoring_infos.html
blob: a8f60b8bd35f3296b15be16acd9648ee4246e244 [file] [log] [blame]
<!DOCTYPE html>
<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>apache_beam.metrics.monitoring_infos &mdash; Apache Beam documentation</title>
<link rel="stylesheet" href="../../../_static/css/theme.css" type="text/css" />
<link rel="index" title="Index"
href="../../../genindex.html"/>
<link rel="search" title="Search" href="../../../search.html"/>
<link rel="top" title="Apache Beam documentation" href="../../../index.html"/>
<link rel="up" title="Module code" href="../../index.html"/>
<script src="../../../_static/js/modernizr.min.js"></script>
</head>
<body class="wy-body-for-nav" role="document">
<div class="wy-grid-for-nav">
<nav data-toggle="wy-nav-shift" class="wy-nav-side">
<div class="wy-side-scroll">
<div class="wy-side-nav-search">
<a href="../../../index.html" class="icon icon-home"> Apache Beam
</a>
<div role="search">
<form id="rtd-search-form" class="wy-form" action="../../../search.html" method="get">
<input type="text" name="q" placeholder="Search docs" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
</div>
</div>
<div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
<ul>
<li class="toctree-l1"><a class="reference internal" href="../../../apache_beam.coders.html">apache_beam.coders package</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../apache_beam.internal.html">apache_beam.internal package</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../apache_beam.io.html">apache_beam.io package</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../apache_beam.metrics.html">apache_beam.metrics package</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../apache_beam.options.html">apache_beam.options package</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../apache_beam.portability.html">apache_beam.portability package</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../apache_beam.runners.html">apache_beam.runners package</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../apache_beam.testing.html">apache_beam.testing package</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../apache_beam.tools.html">apache_beam.tools package</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../apache_beam.transforms.html">apache_beam.transforms package</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../apache_beam.typehints.html">apache_beam.typehints package</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../apache_beam.utils.html">apache_beam.utils package</a></li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="../../../apache_beam.error.html">apache_beam.error module</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../apache_beam.pipeline.html">apache_beam.pipeline module</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../apache_beam.pvalue.html">apache_beam.pvalue module</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../../apache_beam.version.html">apache_beam.version module</a></li>
</ul>
</div>
</div>
</nav>
<section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
<nav class="wy-nav-top" role="navigation" aria-label="top navigation">
<i data-toggle="wy-nav-top" class="fa fa-bars"></i>
<a href="../../../index.html">Apache Beam</a>
</nav>
<div class="wy-nav-content">
<div class="rst-content">
<div role="navigation" aria-label="breadcrumbs navigation">
<ul class="wy-breadcrumbs">
<li><a href="../../../index.html">Docs</a> &raquo;</li>
<li><a href="../../index.html">Module code</a> &raquo;</li>
<li>apache_beam.metrics.monitoring_infos</li>
<li class="wy-breadcrumbs-aside">
</li>
</ul>
<hr/>
</div>
<div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
<div itemprop="articleBody">
<h1>Source code for apache_beam.metrics.monitoring_infos</h1><div class="highlight"><pre>
<span></span><span class="c1">#</span>
<span class="c1"># Licensed to the Apache Software Foundation (ASF) under one or more</span>
<span class="c1"># contributor license agreements. See the NOTICE file distributed with</span>
<span class="c1"># this work for additional information regarding copyright ownership.</span>
<span class="c1"># The ASF licenses this file to You under the Apache License, Version 2.0</span>
<span class="c1"># (the &quot;License&quot;); you may not use this file except in compliance with</span>
<span class="c1"># 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, software</span>
<span class="c1"># distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span>
<span class="c1"># WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
<span class="c1"># See the License for the specific language governing permissions and</span>
<span class="c1"># limitations under the License.</span>
<span class="c1">#</span>
<span class="c1"># cython: language_level=3</span>
<span class="c1"># cython: profile=True</span>
<span class="kn">from</span> <span class="nn">__future__</span> <span class="k">import</span> <span class="n">absolute_import</span>
<span class="kn">import</span> <span class="nn">collections</span>
<span class="kn">import</span> <span class="nn">time</span>
<span class="kn">from</span> <span class="nn">functools</span> <span class="k">import</span> <span class="n">reduce</span>
<span class="kn">from</span> <span class="nn">google.protobuf</span> <span class="k">import</span> <span class="n">timestamp_pb2</span>
<span class="kn">from</span> <span class="nn">apache_beam.metrics.cells</span> <span class="k">import</span> <span class="n">DistributionData</span>
<span class="kn">from</span> <span class="nn">apache_beam.metrics.cells</span> <span class="k">import</span> <span class="n">DistributionResult</span>
<span class="kn">from</span> <span class="nn">apache_beam.metrics.cells</span> <span class="k">import</span> <span class="n">GaugeData</span>
<span class="kn">from</span> <span class="nn">apache_beam.metrics.cells</span> <span class="k">import</span> <span class="n">GaugeResult</span>
<span class="kn">from</span> <span class="nn">apache_beam.portability</span> <span class="k">import</span> <span class="n">common_urns</span>
<span class="kn">from</span> <span class="nn">apache_beam.portability.api</span> <span class="k">import</span> <span class="n">metrics_pb2</span>
<span class="n">SAMPLED_BYTE_SIZE_URN</span> <span class="o">=</span> <span class="p">(</span>
<span class="n">common_urns</span><span class="o">.</span><span class="n">monitoring_info_specs</span><span class="o">.</span><span class="n">SAMPLED_BYTE_SIZE</span><span class="o">.</span><span class="n">spec</span><span class="o">.</span><span class="n">urn</span><span class="p">)</span>
<span class="n">ELEMENT_COUNT_URN</span> <span class="o">=</span> <span class="n">common_urns</span><span class="o">.</span><span class="n">monitoring_info_specs</span><span class="o">.</span><span class="n">ELEMENT_COUNT</span><span class="o">.</span><span class="n">spec</span><span class="o">.</span><span class="n">urn</span>
<span class="n">START_BUNDLE_MSECS_URN</span> <span class="o">=</span> <span class="p">(</span>
<span class="n">common_urns</span><span class="o">.</span><span class="n">monitoring_info_specs</span><span class="o">.</span><span class="n">START_BUNDLE_MSECS</span><span class="o">.</span><span class="n">spec</span><span class="o">.</span><span class="n">urn</span><span class="p">)</span>
<span class="n">PROCESS_BUNDLE_MSECS_URN</span> <span class="o">=</span> <span class="p">(</span>
<span class="n">common_urns</span><span class="o">.</span><span class="n">monitoring_info_specs</span><span class="o">.</span><span class="n">PROCESS_BUNDLE_MSECS</span><span class="o">.</span><span class="n">spec</span><span class="o">.</span><span class="n">urn</span><span class="p">)</span>
<span class="n">FINISH_BUNDLE_MSECS_URN</span> <span class="o">=</span> <span class="p">(</span>
<span class="n">common_urns</span><span class="o">.</span><span class="n">monitoring_info_specs</span><span class="o">.</span><span class="n">FINISH_BUNDLE_MSECS</span><span class="o">.</span><span class="n">spec</span><span class="o">.</span><span class="n">urn</span><span class="p">)</span>
<span class="n">TOTAL_MSECS_URN</span> <span class="o">=</span> <span class="n">common_urns</span><span class="o">.</span><span class="n">monitoring_info_specs</span><span class="o">.</span><span class="n">TOTAL_MSECS</span><span class="o">.</span><span class="n">spec</span><span class="o">.</span><span class="n">urn</span>
<span class="n">USER_COUNTER_URN</span> <span class="o">=</span> <span class="p">(</span>
<span class="n">common_urns</span><span class="o">.</span><span class="n">monitoring_info_specs</span><span class="o">.</span><span class="n">USER_COUNTER</span><span class="o">.</span><span class="n">spec</span><span class="o">.</span><span class="n">urn</span><span class="p">)</span>
<span class="n">USER_DISTRIBUTION_COUNTER_URN</span> <span class="o">=</span> <span class="p">(</span>
<span class="n">common_urns</span><span class="o">.</span><span class="n">monitoring_info_specs</span><span class="o">.</span><span class="n">USER_DISTRIBUTION_COUNTER</span><span class="o">.</span><span class="n">spec</span><span class="o">.</span><span class="n">urn</span><span class="p">)</span>
<span class="c1"># TODO(ajamato): Implement the remaining types, i.e. Double types</span>
<span class="c1"># Extrema types, etc. See:</span>
<span class="c1"># https://s.apache.org/beam-fn-api-metrics</span>
<span class="n">SUM_INT64_TYPE</span> <span class="o">=</span> <span class="n">common_urns</span><span class="o">.</span><span class="n">monitoring_info_types</span><span class="o">.</span><span class="n">SUM_INT64_TYPE</span><span class="o">.</span><span class="n">urn</span>
<span class="n">DISTRIBUTION_INT64_TYPE</span> <span class="o">=</span> <span class="p">(</span>
<span class="n">common_urns</span><span class="o">.</span><span class="n">monitoring_info_types</span><span class="o">.</span><span class="n">DISTRIBUTION_INT64_TYPE</span><span class="o">.</span><span class="n">urn</span><span class="p">)</span>
<span class="n">LATEST_INT64_TYPE</span> <span class="o">=</span> <span class="n">common_urns</span><span class="o">.</span><span class="n">monitoring_info_types</span><span class="o">.</span><span class="n">LATEST_INT64_TYPE</span><span class="o">.</span><span class="n">urn</span>
<span class="n">COUNTER_TYPES</span> <span class="o">=</span> <span class="nb">set</span><span class="p">([</span><span class="n">SUM_INT64_TYPE</span><span class="p">])</span>
<span class="n">DISTRIBUTION_TYPES</span> <span class="o">=</span> <span class="nb">set</span><span class="p">([</span><span class="n">DISTRIBUTION_INT64_TYPE</span><span class="p">])</span>
<span class="n">GAUGE_TYPES</span> <span class="o">=</span> <span class="nb">set</span><span class="p">([</span><span class="n">LATEST_INT64_TYPE</span><span class="p">])</span>
<span class="c1"># TODO(migryz) extract values from beam_fn_api.proto::MonitoringInfoLabels</span>
<span class="n">PCOLLECTION_LABEL</span> <span class="o">=</span> <span class="p">(</span>
<span class="n">common_urns</span><span class="o">.</span><span class="n">monitoring_info_labels</span><span class="o">.</span><span class="n">PCOLLECTION</span><span class="o">.</span><span class="n">label_props</span><span class="o">.</span><span class="n">name</span><span class="p">)</span>
<span class="n">PTRANSFORM_LABEL</span> <span class="o">=</span> <span class="p">(</span>
<span class="n">common_urns</span><span class="o">.</span><span class="n">monitoring_info_labels</span><span class="o">.</span><span class="n">TRANSFORM</span><span class="o">.</span><span class="n">label_props</span><span class="o">.</span><span class="n">name</span><span class="p">)</span>
<span class="n">NAMESPACE_LABEL</span> <span class="o">=</span> <span class="p">(</span>
<span class="n">common_urns</span><span class="o">.</span><span class="n">monitoring_info_labels</span><span class="o">.</span><span class="n">NAMESPACE</span><span class="o">.</span><span class="n">label_props</span><span class="o">.</span><span class="n">name</span><span class="p">)</span>
<span class="n">NAME_LABEL</span> <span class="o">=</span> <span class="p">(</span><span class="n">common_urns</span><span class="o">.</span><span class="n">monitoring_info_labels</span><span class="o">.</span><span class="n">NAME</span><span class="o">.</span><span class="n">label_props</span><span class="o">.</span><span class="n">name</span><span class="p">)</span>
<span class="n">TAG_LABEL</span> <span class="o">=</span> <span class="s2">&quot;TAG&quot;</span>
<div class="viewcode-block" id="to_timestamp_proto"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.to_timestamp_proto">[docs]</a><span class="k">def</span> <span class="nf">to_timestamp_proto</span><span class="p">(</span><span class="n">timestamp_secs</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Converts seconds since epoch to a google.protobuf.Timestamp.</span>
<span class="sd"> Args:</span>
<span class="sd"> timestamp_secs: The timestamp in seconds since epoch.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">seconds</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">timestamp_secs</span><span class="p">)</span>
<span class="n">nanos</span> <span class="o">=</span> <span class="nb">int</span><span class="p">((</span><span class="n">timestamp_secs</span> <span class="o">-</span> <span class="n">seconds</span><span class="p">)</span> <span class="o">*</span> <span class="mi">10</span><span class="o">**</span><span class="mi">9</span><span class="p">)</span>
<span class="k">return</span> <span class="n">timestamp_pb2</span><span class="o">.</span><span class="n">Timestamp</span><span class="p">(</span><span class="n">seconds</span><span class="o">=</span><span class="n">seconds</span><span class="p">,</span> <span class="n">nanos</span><span class="o">=</span><span class="n">nanos</span><span class="p">)</span></div>
<div class="viewcode-block" id="to_timestamp_secs"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.to_timestamp_secs">[docs]</a><span class="k">def</span> <span class="nf">to_timestamp_secs</span><span class="p">(</span><span class="n">timestamp_proto</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Converts a google.protobuf.Timestamp to seconds since epoch.</span>
<span class="sd"> Args:</span>
<span class="sd"> timestamp_proto: The google.protobuf.Timestamp.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">return</span> <span class="n">timestamp_proto</span><span class="o">.</span><span class="n">seconds</span> <span class="o">+</span> <span class="n">timestamp_proto</span><span class="o">.</span><span class="n">nanos</span> <span class="o">*</span> <span class="mi">10</span><span class="o">**-</span><span class="mi">9</span></div>
<div class="viewcode-block" id="extract_counter_value"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.extract_counter_value">[docs]</a><span class="k">def</span> <span class="nf">extract_counter_value</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Returns the int coutner value of the monitoring info.&quot;&quot;&quot;</span>
<span class="k">if</span> <span class="n">is_counter</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">)</span> <span class="ow">or</span> <span class="n">is_gauge</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">):</span>
<span class="k">return</span> <span class="n">monitoring_info_proto</span><span class="o">.</span><span class="n">metric</span><span class="o">.</span><span class="n">counter_data</span><span class="o">.</span><span class="n">int64_value</span>
<span class="k">return</span> <span class="kc">None</span></div>
<div class="viewcode-block" id="extract_distribution"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.extract_distribution">[docs]</a><span class="k">def</span> <span class="nf">extract_distribution</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Returns the relevant DistributionInt64 or DistributionDouble.</span>
<span class="sd"> Args:</span>
<span class="sd"> monitoring_info_proto: The monitoring infor for the distribution.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">if</span> <span class="n">is_distribution</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">):</span>
<span class="k">return</span> <span class="n">monitoring_info_proto</span><span class="o">.</span><span class="n">metric</span><span class="o">.</span><span class="n">distribution_data</span><span class="o">.</span><span class="n">int_distribution_data</span>
<span class="k">return</span> <span class="kc">None</span></div>
<div class="viewcode-block" id="create_labels"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.create_labels">[docs]</a><span class="k">def</span> <span class="nf">create_labels</span><span class="p">(</span><span class="n">ptransform</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">tag</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">namespace</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Create the label dictionary based on the provided tags.</span>
<span class="sd"> Args:</span>
<span class="sd"> ptransform: The ptransform/step name.</span>
<span class="sd"> tag: he output tag name, used as a label.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">labels</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">if</span> <span class="n">tag</span><span class="p">:</span>
<span class="n">labels</span><span class="p">[</span><span class="n">TAG_LABEL</span><span class="p">]</span> <span class="o">=</span> <span class="n">tag</span>
<span class="k">if</span> <span class="n">ptransform</span><span class="p">:</span>
<span class="n">labels</span><span class="p">[</span><span class="n">PTRANSFORM_LABEL</span><span class="p">]</span> <span class="o">=</span> <span class="n">ptransform</span>
<span class="k">if</span> <span class="n">namespace</span><span class="p">:</span>
<span class="n">labels</span><span class="p">[</span><span class="n">NAMESPACE_LABEL</span><span class="p">]</span> <span class="o">=</span> <span class="n">namespace</span>
<span class="k">if</span> <span class="n">name</span><span class="p">:</span>
<span class="n">labels</span><span class="p">[</span><span class="n">NAME_LABEL</span><span class="p">]</span> <span class="o">=</span> <span class="n">name</span>
<span class="k">return</span> <span class="n">labels</span></div>
<div class="viewcode-block" id="int64_user_counter"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.int64_user_counter">[docs]</a><span class="k">def</span> <span class="nf">int64_user_counter</span><span class="p">(</span><span class="n">namespace</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">metric</span><span class="p">,</span> <span class="n">ptransform</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">tag</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Return the counter monitoring info for the specifed URN, metric and labels.</span>
<span class="sd"> Args:</span>
<span class="sd"> urn: The URN of the monitoring info/metric.</span>
<span class="sd"> metric: The metric proto field to use in the monitoring info.</span>
<span class="sd"> Or an int value.</span>
<span class="sd"> ptransform: The ptransform/step name used as a label.</span>
<span class="sd"> tag: The output tag name, used as a label.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">labels</span> <span class="o">=</span> <span class="n">create_labels</span><span class="p">(</span><span class="n">ptransform</span><span class="o">=</span><span class="n">ptransform</span><span class="p">,</span> <span class="n">tag</span><span class="o">=</span><span class="n">tag</span><span class="p">,</span> <span class="n">namespace</span><span class="o">=</span><span class="n">namespace</span><span class="p">,</span>
<span class="n">name</span><span class="o">=</span><span class="n">name</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">metric</span><span class="p">,</span> <span class="nb">int</span><span class="p">):</span>
<span class="n">metric</span> <span class="o">=</span> <span class="n">metrics_pb2</span><span class="o">.</span><span class="n">Metric</span><span class="p">(</span>
<span class="n">counter_data</span><span class="o">=</span><span class="n">metrics_pb2</span><span class="o">.</span><span class="n">CounterData</span><span class="p">(</span>
<span class="n">int64_value</span><span class="o">=</span><span class="n">metric</span>
<span class="p">)</span>
<span class="p">)</span>
<span class="k">return</span> <span class="n">create_monitoring_info</span><span class="p">(</span><span class="n">USER_COUNTER_URN</span><span class="p">,</span> <span class="n">SUM_INT64_TYPE</span><span class="p">,</span> <span class="n">metric</span><span class="p">,</span>
<span class="n">labels</span><span class="p">)</span></div>
<div class="viewcode-block" id="int64_counter"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.int64_counter">[docs]</a><span class="k">def</span> <span class="nf">int64_counter</span><span class="p">(</span><span class="n">urn</span><span class="p">,</span> <span class="n">metric</span><span class="p">,</span> <span class="n">ptransform</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">tag</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Return the counter monitoring info for the specifed URN, metric and labels.</span>
<span class="sd"> Args:</span>
<span class="sd"> urn: The URN of the monitoring info/metric.</span>
<span class="sd"> metric: The metric proto field to use in the monitoring info.</span>
<span class="sd"> Or an int value.</span>
<span class="sd"> ptransform: The ptransform/step name used as a label.</span>
<span class="sd"> tag: The output tag name, used as a label.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">labels</span> <span class="o">=</span> <span class="n">create_labels</span><span class="p">(</span><span class="n">ptransform</span><span class="o">=</span><span class="n">ptransform</span><span class="p">,</span> <span class="n">tag</span><span class="o">=</span><span class="n">tag</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">metric</span><span class="p">,</span> <span class="nb">int</span><span class="p">):</span>
<span class="n">metric</span> <span class="o">=</span> <span class="n">metrics_pb2</span><span class="o">.</span><span class="n">Metric</span><span class="p">(</span>
<span class="n">counter_data</span><span class="o">=</span><span class="n">metrics_pb2</span><span class="o">.</span><span class="n">CounterData</span><span class="p">(</span>
<span class="n">int64_value</span><span class="o">=</span><span class="n">metric</span>
<span class="p">)</span>
<span class="p">)</span>
<span class="k">return</span> <span class="n">create_monitoring_info</span><span class="p">(</span><span class="n">urn</span><span class="p">,</span> <span class="n">SUM_INT64_TYPE</span><span class="p">,</span> <span class="n">metric</span><span class="p">,</span> <span class="n">labels</span><span class="p">)</span></div>
<div class="viewcode-block" id="int64_user_distribution"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.int64_user_distribution">[docs]</a><span class="k">def</span> <span class="nf">int64_user_distribution</span><span class="p">(</span><span class="n">namespace</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">metric</span><span class="p">,</span> <span class="n">ptransform</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">tag</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Return the distribution monitoring info for the URN, metric and labels.</span>
<span class="sd"> Args:</span>
<span class="sd"> urn: The URN of the monitoring info/metric.</span>
<span class="sd"> metric: The metric proto field to use in the monitoring info.</span>
<span class="sd"> Or an int value.</span>
<span class="sd"> ptransform: The ptransform/step name used as a label.</span>
<span class="sd"> tag: The output tag name, used as a label.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">labels</span> <span class="o">=</span> <span class="n">create_labels</span><span class="p">(</span><span class="n">ptransform</span><span class="o">=</span><span class="n">ptransform</span><span class="p">,</span> <span class="n">tag</span><span class="o">=</span><span class="n">tag</span><span class="p">,</span> <span class="n">namespace</span><span class="o">=</span><span class="n">namespace</span><span class="p">,</span>
<span class="n">name</span><span class="o">=</span><span class="n">name</span><span class="p">)</span>
<span class="k">return</span> <span class="n">create_monitoring_info</span><span class="p">(</span><span class="n">USER_DISTRIBUTION_COUNTER_URN</span><span class="p">,</span>
<span class="n">DISTRIBUTION_INT64_TYPE</span><span class="p">,</span> <span class="n">metric</span><span class="p">,</span> <span class="n">labels</span><span class="p">)</span></div>
<div class="viewcode-block" id="int64_distribution"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.int64_distribution">[docs]</a><span class="k">def</span> <span class="nf">int64_distribution</span><span class="p">(</span><span class="n">urn</span><span class="p">,</span> <span class="n">metric</span><span class="p">,</span> <span class="n">ptransform</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">tag</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Return a distribution monitoring info for the URN, metric and labels.</span>
<span class="sd"> Args:</span>
<span class="sd"> urn: The URN of the monitoring info/metric.</span>
<span class="sd"> metric: The metric proto field to use in the monitoring info.</span>
<span class="sd"> ptransform: The ptransform/step name used as a label.</span>
<span class="sd"> tag: The output tag name, used as a label.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">labels</span> <span class="o">=</span> <span class="n">create_labels</span><span class="p">(</span><span class="n">ptransform</span><span class="o">=</span><span class="n">ptransform</span><span class="p">,</span> <span class="n">tag</span><span class="o">=</span><span class="n">tag</span><span class="p">)</span>
<span class="k">return</span> <span class="n">create_monitoring_info</span><span class="p">(</span>
<span class="n">urn</span><span class="p">,</span> <span class="n">DISTRIBUTION_INT64_TYPE</span><span class="p">,</span> <span class="n">metric</span><span class="p">,</span> <span class="n">labels</span><span class="p">)</span></div>
<div class="viewcode-block" id="int64_user_gauge"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.int64_user_gauge">[docs]</a><span class="k">def</span> <span class="nf">int64_user_gauge</span><span class="p">(</span><span class="n">namespace</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">metric</span><span class="p">,</span> <span class="n">ptransform</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">tag</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Return the gauge monitoring info for the URN, metric and labels.</span>
<span class="sd"> Args:</span>
<span class="sd"> namespace: User-defined namespace of counter.</span>
<span class="sd"> name: Name of counter.</span>
<span class="sd"> metric: The metric proto field to use in the monitoring info.</span>
<span class="sd"> Or an int value.</span>
<span class="sd"> ptransform: The ptransform/step name used as a label.</span>
<span class="sd"> tag: The output tag name, used as a label.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">labels</span> <span class="o">=</span> <span class="n">create_labels</span><span class="p">(</span><span class="n">ptransform</span><span class="o">=</span><span class="n">ptransform</span><span class="p">,</span> <span class="n">tag</span><span class="o">=</span><span class="n">tag</span><span class="p">,</span> <span class="n">namespace</span><span class="o">=</span><span class="n">namespace</span><span class="p">,</span>
<span class="n">name</span><span class="o">=</span><span class="n">name</span><span class="p">)</span>
<span class="k">return</span> <span class="n">create_monitoring_info</span><span class="p">(</span><span class="n">USER_COUNTER_URN</span><span class="p">,</span> <span class="n">LATEST_INT64_TYPE</span><span class="p">,</span> <span class="n">metric</span><span class="p">,</span>
<span class="n">labels</span><span class="p">)</span></div>
<div class="viewcode-block" id="create_monitoring_info"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.create_monitoring_info">[docs]</a><span class="k">def</span> <span class="nf">create_monitoring_info</span><span class="p">(</span><span class="n">urn</span><span class="p">,</span> <span class="n">type_urn</span><span class="p">,</span> <span class="n">metric_proto</span><span class="p">,</span> <span class="n">labels</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Return the gauge monitoring info for the URN, type, metric and labels.</span>
<span class="sd"> Args:</span>
<span class="sd"> urn: The URN of the monitoring info/metric.</span>
<span class="sd"> type_urn: The URN of the type of the monitoring info/metric.</span>
<span class="sd"> i.e. beam:metrics:sum_int_64, beam:metrics:latest_int_64.</span>
<span class="sd"> metric_proto: The metric proto field to use in the monitoring info.</span>
<span class="sd"> Or an int value.</span>
<span class="sd"> labels: The label dictionary to use in the MonitoringInfo.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">return</span> <span class="n">metrics_pb2</span><span class="o">.</span><span class="n">MonitoringInfo</span><span class="p">(</span>
<span class="n">urn</span><span class="o">=</span><span class="n">urn</span><span class="p">,</span>
<span class="nb">type</span><span class="o">=</span><span class="n">type_urn</span><span class="p">,</span>
<span class="n">labels</span><span class="o">=</span><span class="n">labels</span> <span class="ow">or</span> <span class="nb">dict</span><span class="p">(),</span>
<span class="n">metric</span><span class="o">=</span><span class="n">metric_proto</span><span class="p">,</span>
<span class="n">timestamp</span><span class="o">=</span><span class="n">to_timestamp_proto</span><span class="p">(</span><span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">())</span>
<span class="p">)</span></div>
<div class="viewcode-block" id="is_counter"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.is_counter">[docs]</a><span class="k">def</span> <span class="nf">is_counter</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Returns true if the monitoring info is a coutner metric.&quot;&quot;&quot;</span>
<span class="k">return</span> <span class="n">monitoring_info_proto</span><span class="o">.</span><span class="n">type</span> <span class="ow">in</span> <span class="n">COUNTER_TYPES</span></div>
<div class="viewcode-block" id="is_distribution"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.is_distribution">[docs]</a><span class="k">def</span> <span class="nf">is_distribution</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Returns true if the monitoring info is a distrbution metric.&quot;&quot;&quot;</span>
<span class="k">return</span> <span class="n">monitoring_info_proto</span><span class="o">.</span><span class="n">type</span> <span class="ow">in</span> <span class="n">DISTRIBUTION_TYPES</span></div>
<div class="viewcode-block" id="is_gauge"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.is_gauge">[docs]</a><span class="k">def</span> <span class="nf">is_gauge</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Returns true if the monitoring info is a gauge metric.&quot;&quot;&quot;</span>
<span class="k">return</span> <span class="n">monitoring_info_proto</span><span class="o">.</span><span class="n">type</span> <span class="ow">in</span> <span class="n">GAUGE_TYPES</span></div>
<span class="k">def</span> <span class="nf">_is_user_monitoring_info</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">):</span>
<span class="k">return</span> <span class="n">monitoring_info_proto</span><span class="o">.</span><span class="n">urn</span> <span class="o">==</span> <span class="n">USER_COUNTER_URN</span>
<span class="k">def</span> <span class="nf">_is_user_distribution_monitoring_info</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">):</span>
<span class="k">return</span> <span class="n">monitoring_info_proto</span><span class="o">.</span><span class="n">urn</span> <span class="o">==</span> <span class="n">USER_DISTRIBUTION_COUNTER_URN</span>
<div class="viewcode-block" id="is_user_monitoring_info"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.is_user_monitoring_info">[docs]</a><span class="k">def</span> <span class="nf">is_user_monitoring_info</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Returns true if the monitoring info is a user metric.&quot;&quot;&quot;</span>
<span class="k">return</span> <span class="n">_is_user_monitoring_info</span><span class="p">(</span>
<span class="n">monitoring_info_proto</span><span class="p">)</span> <span class="ow">or</span> <span class="n">_is_user_distribution_monitoring_info</span><span class="p">(</span>
<span class="n">monitoring_info_proto</span><span class="p">)</span></div>
<div class="viewcode-block" id="extract_metric_result_map_value"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.extract_metric_result_map_value">[docs]</a><span class="k">def</span> <span class="nf">extract_metric_result_map_value</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Returns the relevant GaugeResult, DistributionResult or int value.</span>
<span class="sd"> These are the proper format for use in the MetricResult.query() result.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="c1"># Returns a metric result (AKA the legacy format).</span>
<span class="c1"># from the MonitoringInfo</span>
<span class="k">if</span> <span class="n">is_counter</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">):</span>
<span class="k">return</span> <span class="n">extract_counter_value</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">)</span>
<span class="k">if</span> <span class="n">is_distribution</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">):</span>
<span class="n">distribution_data</span> <span class="o">=</span> <span class="n">extract_distribution</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">)</span>
<span class="k">return</span> <span class="n">DistributionResult</span><span class="p">(</span>
<span class="n">DistributionData</span><span class="p">(</span><span class="n">distribution_data</span><span class="o">.</span><span class="n">sum</span><span class="p">,</span> <span class="n">distribution_data</span><span class="o">.</span><span class="n">count</span><span class="p">,</span>
<span class="n">distribution_data</span><span class="o">.</span><span class="n">min</span><span class="p">,</span> <span class="n">distribution_data</span><span class="o">.</span><span class="n">max</span><span class="p">))</span>
<span class="k">if</span> <span class="n">is_gauge</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">):</span>
<span class="n">timestamp_secs</span> <span class="o">=</span> <span class="n">to_timestamp_secs</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="o">.</span><span class="n">timestamp</span><span class="p">)</span>
<span class="k">return</span> <span class="n">GaugeResult</span><span class="p">(</span><span class="n">GaugeData</span><span class="p">(</span>
<span class="n">extract_counter_value</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">),</span> <span class="n">timestamp_secs</span><span class="p">))</span></div>
<div class="viewcode-block" id="parse_namespace_and_name"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.parse_namespace_and_name">[docs]</a><span class="k">def</span> <span class="nf">parse_namespace_and_name</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Returns the (namespace, name) tuple of the URN in the monitoring info.&quot;&quot;&quot;</span>
<span class="c1"># Remove the URN prefix which indicates that it is a user counter.</span>
<span class="k">if</span> <span class="n">is_user_monitoring_info</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">):</span>
<span class="n">labels</span> <span class="o">=</span> <span class="n">monitoring_info_proto</span><span class="o">.</span><span class="n">labels</span>
<span class="k">return</span> <span class="n">labels</span><span class="p">[</span><span class="n">NAMESPACE_LABEL</span><span class="p">],</span> <span class="n">labels</span><span class="p">[</span><span class="n">NAME_LABEL</span><span class="p">]</span>
<span class="c1"># If it is not a user counter, just use the first part of the URN, i.e. &#39;beam&#39;</span>
<span class="n">split</span> <span class="o">=</span> <span class="n">monitoring_info_proto</span><span class="o">.</span><span class="n">urn</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;:&#39;</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
<span class="k">return</span> <span class="n">split</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">split</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span></div>
<div class="viewcode-block" id="to_key"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.to_key">[docs]</a><span class="k">def</span> <span class="nf">to_key</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Returns a key based on the URN and labels.</span>
<span class="sd"> This is useful in maps to prevent reporting the same MonitoringInfo twice.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">key_items</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="o">.</span><span class="n">labels</span><span class="o">.</span><span class="n">items</span><span class="p">())</span>
<span class="n">key_items</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">monitoring_info_proto</span><span class="o">.</span><span class="n">urn</span><span class="p">)</span>
<span class="k">return</span> <span class="nb">frozenset</span><span class="p">(</span><span class="n">key_items</span><span class="p">)</span></div>
<div class="viewcode-block" id="distribution_combiner"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.distribution_combiner">[docs]</a><span class="k">def</span> <span class="nf">distribution_combiner</span><span class="p">(</span><span class="n">metric_a</span><span class="p">,</span> <span class="n">metric_b</span><span class="p">):</span>
<span class="n">a_data</span> <span class="o">=</span> <span class="n">metric_a</span><span class="o">.</span><span class="n">distribution_data</span><span class="o">.</span><span class="n">int_distribution_data</span>
<span class="n">b_data</span> <span class="o">=</span> <span class="n">metric_b</span><span class="o">.</span><span class="n">distribution_data</span><span class="o">.</span><span class="n">int_distribution_data</span>
<span class="k">return</span> <span class="n">metrics_pb2</span><span class="o">.</span><span class="n">Metric</span><span class="p">(</span>
<span class="n">distribution_data</span><span class="o">=</span><span class="n">metrics_pb2</span><span class="o">.</span><span class="n">DistributionData</span><span class="p">(</span>
<span class="n">int_distribution_data</span><span class="o">=</span><span class="n">metrics_pb2</span><span class="o">.</span><span class="n">IntDistributionData</span><span class="p">(</span>
<span class="n">count</span><span class="o">=</span><span class="n">a_data</span><span class="o">.</span><span class="n">count</span> <span class="o">+</span> <span class="n">b_data</span><span class="o">.</span><span class="n">count</span><span class="p">,</span>
<span class="nb">sum</span><span class="o">=</span><span class="n">a_data</span><span class="o">.</span><span class="n">sum</span> <span class="o">+</span> <span class="n">b_data</span><span class="o">.</span><span class="n">sum</span><span class="p">,</span>
<span class="nb">min</span><span class="o">=</span><span class="nb">min</span><span class="p">(</span><span class="n">a_data</span><span class="o">.</span><span class="n">min</span><span class="p">,</span> <span class="n">b_data</span><span class="o">.</span><span class="n">min</span><span class="p">),</span>
<span class="nb">max</span><span class="o">=</span><span class="nb">max</span><span class="p">(</span><span class="n">a_data</span><span class="o">.</span><span class="n">max</span><span class="p">,</span> <span class="n">b_data</span><span class="o">.</span><span class="n">max</span><span class="p">))))</span></div>
<span class="n">_KNOWN_COMBINERS</span> <span class="o">=</span> <span class="p">{</span>
<span class="n">SUM_INT64_TYPE</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">:</span> <span class="n">metrics_pb2</span><span class="o">.</span><span class="n">Metric</span><span class="p">(</span>
<span class="n">counter_data</span><span class="o">=</span><span class="n">metrics_pb2</span><span class="o">.</span><span class="n">CounterData</span><span class="p">(</span>
<span class="n">int64_value</span><span class="o">=</span>
<span class="n">a</span><span class="o">.</span><span class="n">counter_data</span><span class="o">.</span><span class="n">int64_value</span> <span class="o">+</span> <span class="n">b</span><span class="o">.</span><span class="n">counter_data</span><span class="o">.</span><span class="n">int64_value</span><span class="p">)),</span>
<span class="n">DISTRIBUTION_INT64_TYPE</span><span class="p">:</span> <span class="n">distribution_combiner</span><span class="p">,</span>
<span class="p">}</span>
<div class="viewcode-block" id="max_timestamp"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.max_timestamp">[docs]</a><span class="k">def</span> <span class="nf">max_timestamp</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span>
<span class="k">if</span> <span class="n">a</span><span class="o">.</span><span class="n">ToNanoseconds</span><span class="p">()</span> <span class="o">&gt;</span> <span class="n">b</span><span class="o">.</span><span class="n">ToNanoseconds</span><span class="p">():</span>
<span class="k">return</span> <span class="n">a</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="n">b</span></div>
<div class="viewcode-block" id="consolidate"><a class="viewcode-back" href="../../../apache_beam.metrics.monitoring_infos.html#apache_beam.metrics.monitoring_infos.consolidate">[docs]</a><span class="k">def</span> <span class="nf">consolidate</span><span class="p">(</span><span class="n">metrics</span><span class="p">,</span> <span class="n">key</span><span class="o">=</span><span class="n">to_key</span><span class="p">):</span>
<span class="n">grouped</span> <span class="o">=</span> <span class="n">collections</span><span class="o">.</span><span class="n">defaultdict</span><span class="p">(</span><span class="nb">list</span><span class="p">)</span>
<span class="k">for</span> <span class="n">metric</span> <span class="ow">in</span> <span class="n">metrics</span><span class="p">:</span>
<span class="n">grouped</span><span class="p">[</span><span class="n">key</span><span class="p">(</span><span class="n">metric</span><span class="p">)]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">metric</span><span class="p">)</span>
<span class="k">for</span> <span class="n">values</span> <span class="ow">in</span> <span class="n">grouped</span><span class="o">.</span><span class="n">values</span><span class="p">():</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">values</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
<span class="k">yield</span> <span class="n">values</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">combiner</span> <span class="o">=</span> <span class="n">_KNOWN_COMBINERS</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">values</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">type</span><span class="p">)</span>
<span class="k">if</span> <span class="n">combiner</span><span class="p">:</span>
<span class="k">def</span> <span class="nf">merge</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span>
<span class="c1"># pylint: disable=cell-var-from-loop</span>
<span class="k">return</span> <span class="n">metrics_pb2</span><span class="o">.</span><span class="n">MonitoringInfo</span><span class="p">(</span>
<span class="n">urn</span><span class="o">=</span><span class="n">a</span><span class="o">.</span><span class="n">urn</span><span class="p">,</span>
<span class="nb">type</span><span class="o">=</span><span class="n">a</span><span class="o">.</span><span class="n">type</span><span class="p">,</span>
<span class="n">labels</span><span class="o">=</span><span class="nb">dict</span><span class="p">((</span><span class="n">label</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span> <span class="k">for</span> <span class="n">label</span><span class="p">,</span> <span class="n">value</span> <span class="ow">in</span> <span class="n">a</span><span class="o">.</span><span class="n">labels</span><span class="o">.</span><span class="n">items</span><span class="p">()</span>
<span class="k">if</span> <span class="n">b</span><span class="o">.</span><span class="n">labels</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">label</span><span class="p">)</span> <span class="o">==</span> <span class="n">value</span><span class="p">),</span>
<span class="n">metric</span><span class="o">=</span><span class="n">combiner</span><span class="p">(</span><span class="n">a</span><span class="o">.</span><span class="n">metric</span><span class="p">,</span> <span class="n">b</span><span class="o">.</span><span class="n">metric</span><span class="p">),</span>
<span class="n">timestamp</span><span class="o">=</span><span class="n">max_timestamp</span><span class="p">(</span><span class="n">a</span><span class="o">.</span><span class="n">timestamp</span><span class="p">,</span> <span class="n">b</span><span class="o">.</span><span class="n">timestamp</span><span class="p">))</span>
<span class="k">yield</span> <span class="n">reduce</span><span class="p">(</span><span class="n">merge</span><span class="p">,</span> <span class="n">values</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">for</span> <span class="n">value</span> <span class="ow">in</span> <span class="n">values</span><span class="p">:</span>
<span class="k">yield</span> <span class="n">value</span></div>
</pre></div>
</div>
<div class="articleComments">
</div>
</div>
<footer>
<hr/>
<div role="contentinfo">
<p>
&copy; Copyright .
</p>
</div>
Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
</footer>
</div>
</div>
</section>
</div>
<script type="text/javascript">
var DOCUMENTATION_OPTIONS = {
URL_ROOT:'../../../',
VERSION:'',
COLLAPSE_INDEX:false,
FILE_SUFFIX:'.html',
HAS_SOURCE: true,
SOURCELINK_SUFFIX: '.txt'
};
</script>
<script type="text/javascript" src="../../../_static/jquery.js"></script>
<script type="text/javascript" src="../../../_static/underscore.js"></script>
<script type="text/javascript" src="../../../_static/doctools.js"></script>
<script type="text/javascript" src="../../../_static/js/theme.js"></script>
<script type="text/javascript">
jQuery(function () {
SphinxRtdTheme.StickyNav.enable();
});
</script>
</body>
</html>