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| <div class="section" id="checking-airflow-health-status"> |
| <h1>Checking Airflow Health Status<a class="headerlink" href="#checking-airflow-health-status" title="Permalink to this headline">¶</a></h1> |
| <p>To check the health status of your Airflow instance, you can simply access the endpoint |
| <code class="docutils literal notranslate"><span class="pre">/health</span></code>. It will return a JSON object in which a high-level glance is provided.</p> |
| <div class="highlight-JSON notranslate"><div class="highlight"><pre><span></span><span class="p">{</span> |
| <span class="nt">"metadatabase"</span><span class="p">:{</span> |
| <span class="nt">"status"</span><span class="p">:</span><span class="s2">"healthy"</span> |
| <span class="p">},</span> |
| <span class="nt">"scheduler"</span><span class="p">:{</span> |
| <span class="nt">"status"</span><span class="p">:</span><span class="s2">"healthy"</span><span class="p">,</span> |
| <span class="nt">"latest_scheduler_heartbeat"</span><span class="p">:</span><span class="s2">"2018-12-26 17:15:11+00:00"</span> |
| <span class="p">}</span> |
| <span class="p">}</span> |
| </pre></div> |
| </div> |
| <ul class="simple"> |
| <li><p>The <code class="docutils literal notranslate"><span class="pre">status</span></code> of each component can be either “healthy” or “unhealthy”</p> |
| <ul> |
| <li><p>The status of <code class="docutils literal notranslate"><span class="pre">metadatabase</span></code> depends on whether a valid connection can be initiated with the database</p></li> |
| <li><p>The status of <code class="docutils literal notranslate"><span class="pre">scheduler</span></code> depends on when the latest scheduler heartbeat was received</p> |
| <ul> |
| <li><p>If the last heartbeat was received more than 30 seconds (default value) earlier than the current time, the scheduler is |
| considered unhealthy</p></li> |
| <li><p>This threshold value can be specified using the option <code class="docutils literal notranslate"><span class="pre">scheduler_health_check_threshold</span></code> within the |
| <code class="docutils literal notranslate"><span class="pre">scheduler</span></code> section in <code class="docutils literal notranslate"><span class="pre">airflow.cfg</span></code></p></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <p>Please keep in mind that the HTTP response code of <code class="docutils literal notranslate"><span class="pre">/health</span></code> endpoint <strong>should not</strong> be used to determine the health |
| status of the application. The return code is only indicative of the state of the rest call (200 for success).</p> |
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