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metrics.html
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<!DOCTYPE html>
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<div class="section" id="digdag-metrics-experimental">
<h1>Digdag metrics (experimental)<a class="headerlink" href="#digdag-metrics-experimental" title="Permalink to this headline">¶</a></h1>
<p>Digdag supports JMX and provides a few metrics. But it is not enough to monitor its performance and stability.
To improve it, new metrics framework <em>digdag metrics</em> has been introduced.
<em>Digdag metrics</em> integrates <a class="reference external" href="https://micrometer.io/">micrometer</a>.
micrometer supports many monitoring tools. Currently <em>digdag metrics</em> supports JMX and Fluentd(Fluency).
We may add a few monitoring tools in the future.</p>
<div class="section" id="metrics-category">
<h2>Metrics category<a class="headerlink" href="#metrics-category" title="Permalink to this headline">¶</a></h2>
<p>There are many metrics in <em>digdag metrics</em>.
So metrics are categorized as follows.</p>
<table border="1" class="docutils">
<thead>
<tr>
<th>Category</th>
<th>JMX domain</th>
<th>Metrics name prefix</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td>Agent</td>
<td>io.digdag.agent</td>
<td>agent_</td>
<td>Agent related metrics</td>
</tr>
<tr>
<td>API</td>
<td>io.digdag.api</td>
<td>api_</td>
<td>API endpoint metrics</td>
</tr>
<tr>
<td>DB</td>
<td>io.digdag.db</td>
<td>db_</td>
<td>Database access methods</td>
</tr>
<tr>
<td>Executor</td>
<td>io.digdag.executor</td>
<td>executor_</td>
<td>Workflow executor metrics</td>
</tr>
<tr>
<td>Default</td>
<td>io.digdag</td>
<td></td>
<td>Others</td>
</tr>
</tbody>
</table></div>
<div class="section" id="setup">
<h2>Setup<a class="headerlink" href="#setup" title="Permalink to this headline">¶</a></h2>
<p>Digdag metrics is disabled as default. To enable it, add configuration to server config as follows.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">metrics</span><span class="o">.</span><span class="n">enable</span> <span class="o">=</span> <span class="n">jmx</span><span class="p">,</span><span class="n">fluency</span>
</pre></div>
</div>
<p>As default, all categories metrics are enable.
You can choose enabled categories as follows.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">metrics</span><span class="o">.</span><span class="n">enable</span> <span class="o">=</span> <span class="n">jmx</span><span class="p">,</span><span class="n">fluency</span>
<span class="n">metrics</span><span class="o">.</span><span class="n">jmx</span><span class="o">.</span><span class="n">categories</span> <span class="o">=</span> <span class="n">api</span><span class="p">,</span><span class="n">default</span>
<span class="n">metrics</span><span class="o">.</span><span class="n">fluency</span><span class="o">.</span><span class="n">categories</span> <span class="o">=</span> <span class="n">agent</span><span class="p">,</span><span class="n">executor</span><span class="p">,</span><span class="n">default</span>
<span class="n">metrics</span><span class="o">.</span><span class="n">fluency</span><span class="o">.</span><span class="n">host</span> <span class="o">=</span> <span class="n">localhost</span><span class="p">:</span><span class="mi">24224</span>
<span class="n">metrics</span><span class="o">.</span><span class="n">fluency</span><span class="o">.</span><span class="n">tag</span> <span class="o">=</span> <span class="n">digdag_metrics</span>
<span class="n">metrics</span><span class="o">.</span><span class="n">fluency</span><span class="o">.</span><span class="n">step</span> <span class="o">=</span> <span class="mi">60</span> <span class="c1">#step to send metrics. default is 60 seconds</span>
</pre></div>
</div>
</div>
<div class="section" id="api-metrics">
<h2>API metrics<a class="headerlink" href="#api-metrics" title="Permalink to this headline">¶</a></h2>
<p>API endpoint list and corresponding metrics are as follows</p>
<table border="1" class="docutils">
<thead>
<tr>
<th align="center">No.</th>
<th>Http method</th>
<th>URI</th>
<th>Metrics name</th>
<th>Metrics type</th>
</tr>
</thead>
<tbody>
<tr>
<td align="center">1</td>
<td>GET</td>
<td>/api/attempts/{id}</td>
<td>api_getAttempt</td>
<td>timing</td>
</tr>
<tr>
<td align="center">2</td>
<td>GET</td>
<td>/api/attempts/{id}/retries</td>
<td>api_getAttemptRetries</td>
<td>timing</td>
</tr>
<tr>
<td align="center">3</td>
<td>GET</td>
<td>/api/attempts/{id}/tasks</td>
<td>api_getTasks</td>
<td>timing</td>
</tr>
<tr>
<td align="center">4</td>
<td>PUT</td>
<td>/api/attempts</td>
<td>api_startAttempt</td>
<td>timing</td>
</tr>
<tr>
<td align="center">5</td>
<td>POST</td>
<td>/api/attempts/{id}/kill</td>
<td>api_killAttempt</td>
<td>timing</td>
</tr>
<tr>
<td align="center">6</td>
<td>GET</td>
<td>/api/logs/{attempt_id}/files</td>
<td>api_getFileHandles</td>
<td>timing</td>
</tr>
<tr>
<td align="center">7</td>
<td>GET</td>
<td>/api/logs/{attempt_id}/files/{file_name}</td>
<td>api_getFile</td>
<td>timing</td>
</tr>
<tr>
<td align="center">8</td>
<td>GET</td>
<td>/api/project</td>
<td>api_getProject</td>
<td>timing</td>
</tr>
<tr>
<td align="center">9</td>
<td>GET</td>
<td>/api/projects</td>
<td>api_getProjects</td>
<td>timing</td>
</tr>
<tr>
<td align="center">10</td>
<td>GET</td>
<td>/api/projects/{id}</td>
<td>api_getProjectById</td>
<td>timing</td>
</tr>
<tr>
<td align="center">11</td>
<td>GET</td>
<td>/api/projects/{id}/revisions</td>
<td>api_getRevisions</td>
<td>timing</td>
</tr>
<tr>
<td align="center">12</td>
<td>GET</td>
<td>/api/projects/{id}/workflow</td>
<td>api_getWorkflow</td>
<td>timing</td>
</tr>
<tr>
<td align="center">13</td>
<td>GET</td>
<td>/api/projects/{id}/workflows/{name}</td>
<td>api_getWorkflowByName</td>
<td>timing</td>
</tr>
<tr>
<td align="center">14</td>
<td>GET</td>
<td>/api/projects/{id}/workflows</td>
<td>api_getWorkflows</td>
<td>timing</td>
</tr>
<tr>
<td align="center">15</td>
<td>GET</td>
<td>/api/projects/{id}/schedules</td>
<td>api_getProjectSchedules</td>
<td>timing</td>
</tr>
<tr>
<td align="center">16</td>
<td>GET</td>
<td>/api/projects/{id}/sessions</td>
<td>api_getProjectSessions</td>
<td>timing</td>
</tr>
<tr>
<td align="center">17</td>
<td>GET</td>
<td>/api/projects/{id}/archive</td>
<td>api_getArchive</td>
<td>timing</td>
</tr>
<tr>
<td align="center">18</td>
<td>DELETE</td>
<td>/api/projects/{id}</td>
<td>api_deleteProject</td>
<td>timing</td>
</tr>
<tr>
<td align="center">19</td>
<td>PUT</td>
<td>/api/projects</td>
<td>api_putProject</td>
<td>timing</td>
</tr>
<tr>
<td align="center">20</td>
<td>PUT</td>
<td>/api/projects/{id}/secrets/{key}</td>
<td>api_putProjectSecret</td>
<td>timing</td>
</tr>
<tr>
<td align="center">21</td>
<td>DELETE</td>
<td>/api/projects/{id}/secrets/{key}</td>
<td>api_deleteProjectSecret</td>
<td>timing</td>
</tr>
<tr>
<td align="center">22</td>
<td>GET</td>
<td>/api/projects/{id}/secrets</td>
<td>api_getProjectSecretList</td>
<td>timing</td>
</tr>
<tr>
<td align="center">23</td>
<td>GET</td>
<td>/api/workflow</td>
<td>api_getWorkflowDefinition</td>
<td>timing</td>
</tr>
<tr>
<td align="center">24</td>
<td>GET</td>
<td>/api/workflows</td>
<td>api_getWorkflowDefinitions</td>
<td>timing</td>
</tr>
<tr>
<td align="center">25</td>
<td>GET</td>
<td>/api/workflows/{id}</td>
<td>api_getWorkflowDefinitionById</td>
<td>timing</td>
</tr>
<tr>
<td align="center">26</td>
<td>GET</td>
<td>/api/workflows/{id}/truncated_session_time</td>
<td>api_getTruncatedSessionTime</td>
<td>timing</td>
</tr>
<tr>
<td align="center">27</td>
<td>GET</td>
<td>/api/sessions</td>
<td>api_getSessions</td>
<td>timing</td>
</tr>
<tr>
<td align="center">28</td>
<td>GET</td>
<td>/api/sessions/{id}</td>
<td>api_getSession</td>
<td>timing</td>
</tr>
<tr>
<td align="center">29</td>
<td>GET</td>
<td>/api/sessions/{id}/attempts</td>
<td>api_getSessionAttempts</td>
<td>timing</td>
</tr>
<tr>
<td align="center">30</td>
<td>GET</td>
<td>/api/schedules</td>
<td>api_getSchedules</td>
<td>timing</td>
</tr>
<tr>
<td align="center">31</td>
<td>GET</td>
<td>/api/schedules/{id}</td>
<td>api_getScheduleById</td>
<td>timing</td>
</tr>
<tr>
<td align="center">32</td>
<td>POST</td>
<td>/api/schedules/{id}/skip</td>
<td>api_skipSchedule</td>
<td>timing</td>
</tr>
<tr>
<td align="center">33</td>
<td>POST</td>
<td>/api/schedules/{id}/backfill</td>
<td>api_backfillSchedule</td>
<td>timing</td>
</tr>
<tr>
<td align="center">34</td>
<td>POST</td>
<td>/api/schedules/{id}/disable</td>
<td>api_disableSchedule</td>
<td>timing</td>
</tr>
<tr>
<td align="center">35</td>
<td>POST</td>
<td>/api/schedules/{id}/enable</td>
<td>api_enableSchedule</td>
<td>timing</td>
</tr>
</tbody>
</table></div>
</div>
</div>
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