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itemtype="https://schema.org/BreadcrumbList"><li class="breadcrumbs__item"><a aria-label="Home page" class="breadcrumbs__link" href="/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_YNFT"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Remote Executor</span><meta itemprop="position" content="1"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">Monitoring Remote Executor</span><meta itemprop="position" content="2"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">Version: Next</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><h1>Monitoring Remote Executor</h1><div class="availabilityCard_P5od card"><strong>Feature Availability</strong><div><span class="platform_wqXv">Self-Hosted DataHub <span role="img" aria-label="close-circle" class="anticon anticon-close-circle"><svg fill-rule="evenodd" viewBox="64 64 896 896" focusable="false" data-icon="close-circle" width="1em" height="1em" fill="currentColor" aria-hidden="true"><path d="M512 64c247.4 0 448 200.6 448 448S759.4 960 512 960 64 759.4 64 512 264.6 64 512 64zm127.98 274.82h-.04l-.08.06L512 466.75 384.14 338.88c-.04-.05-.06-.06-.08-.06a.12.12 0 00-.07 0c-.03 0-.05.01-.09.05l-45.02 45.02a.2.2 0 00-.05.09.12.12 0 000 .07v.02a.27.27 0 00.06.06L466.75 512 338.88 639.86c-.05.04-.06.06-.06.08a.12.12 0 000 .07c0 .03.01.05.05.09l45.02 45.02a.2.2 0 00.09.05.12.12 0 00.07 0c.02 0 .04-.01.08-.05L512 557.25l127.86 127.87c.04.04.06.05.08.05a.12.12 0 00.07 0c.03 0 .05-.01.09-.05l45.02-45.02a.2.2 0 00.05-.09.12.12 0 000-.07v-.02a.27.27 0 00-.05-.06L557.25 512l127.87-127.86c.04-.04.05-.06.05-.08a.12.12 0 000-.07c0-.03-.01-.05-.05-.09l-45.02-45.02a.2.2 0 00-.09-.05.12.12 0 00-.07 0z"></path></svg></span></span></div><div><span role="img" aria-label="cloud" class="anticon anticon-cloud managedIcon_AxXO"><svg viewBox="64 64 896 896" focusable="false" data-icon="cloud" width="1em" height="1em" fill="currentColor" aria-hidden="true"><path d="M811.4 418.7C765.6 297.9 648.9 212 512.2 212S258.8 297.8 213 418.6C127.3 441.1 64 519.1 64 612c0 110.5 89.5 200 199.9 200h496.2C870.5 812 960 722.5 960 612c0-92.7-63.1-170.7-148.6-193.3zm36.3 281a123.07 123.07 0 01-87.6 36.3H263.9c-33.1 0-64.2-12.9-87.6-36.3A123.3 123.3 0 01140 612c0-28 9.1-54.3 26.2-76.3a125.7 125.7 0 0166.1-43.7l37.9-9.9 13.9-36.6c8.6-22.8 20.6-44.1 35.7-63.4a245.6 245.6 0 0152.4-49.9c41.1-28.9 89.5-44.2 140-44.2s98.9 15.3 140 44.2c19.9 14 37.5 30.8 52.4 49.9 15.1 19.3 27.1 40.7 35.7 63.4l13.8 36.5 37.8 10c54.3 14.5 92.1 63.8 92.1 120 0 33.1-12.9 64.3-36.3 87.7z"></path></svg></span><span class="platform_wqXv platformAvailable_Y8lN">DataHub Cloud <span role="img" aria-label="check-circle" class="anticon anticon-check-circle"><svg viewBox="64 64 896 896" focusable="false" data-icon="check-circle" width="1em" height="1em" fill="currentColor" aria-hidden="true"><path d="M512 64C264.6 64 64 264.6 64 512s200.6 448 448 448 448-200.6 448-448S759.4 64 512 64zm193.5 301.7l-210.6 292a31.8 31.8 0 01-51.7 0L318.5 484.9c-3.8-5.3 0-12.7 6.5-12.7h46.9c10.2 0 19.9 4.9 25.9 13.3l71.2 98.8 157.2-218c6-8.3 15.6-13.3 25.9-13.3H699c6.5 0 10.3 7.4 6.5 12.7z"></path></svg></span></span></div></div><h2 class="anchor anchorWithStickyNavbar_LWe7" id="overview">Overview<a href="#overview" class="hash-link" aria-label="Direct link to Overview" title="Direct link to Overview"></a></h2><p>This guide covers all aspects of monitoring your Remote Executor deployment:</p><ol><li>File-based health checks</li><li>UI-based health monitoring</li><li>Advanced Prometheus metrics configuration</li></ol><h2 class="anchor anchorWithStickyNavbar_LWe7" id="health-checks">Health Checks<a href="#health-checks" class="hash-link" aria-label="Direct link to Health Checks" title="Direct link to Health Checks"></a></h2><h3 class="anchor anchorWithStickyNavbar_LWe7" id="file-based-health-checks">File-Based Health Checks<a href="#file-based-health-checks" class="hash-link" aria-label="Direct link to File-Based Health Checks" title="Direct link to File-Based Health Checks"></a></h3><p>The Remote Executor uses file-based health checks that can be monitored by your container platform:</p><ul><li>Liveness: <code>/tmp/worker_liveness_heartbeat</code></li><li>Readiness: <code>/tmp/worker_readiness_heartbeat</code></li></ul><p>These files are automatically managed by the Remote Executor and can be used by Kubernetes liveness/readiness probes or ECS health checks.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="ui-based-health-monitoring">UI-Based Health Monitoring<a href="#ui-based-health-monitoring" class="hash-link" aria-label="Direct link to UI-Based Health Monitoring" title="Direct link to UI-Based Health Monitoring"></a></h3><p>Monitor Remote Executor health directly in the DataHub UI:</p><ol><li>Navigate to <strong>Data Sources > Executors</strong></li><li>View health information for each Pool:<ul><li>Active Remote Executor instances</li><li>Last reported time for each executor</li><li>Status (Active/Stale)</li><li>Currently running Ingestion tasks and their details</li></ul></li></ol><p align="center"><img loading="lazy" width="90%" src="https://github.com/datahub-project/static-assets/blob/main/imgs/remote-executor/remote-executor-view-running-tasks.png?raw=true" class="img_ev3q"></p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="advanced-prometheus-metrics">Advanced: Prometheus Metrics<a href="#advanced-prometheus-metrics" class="hash-link" aria-label="Direct link to Advanced: Prometheus Metrics" title="Direct link to Advanced: Prometheus Metrics"></a></h2><p>The Remote Executor exposes metrics on port <code>9087/tcp</code> in Prometheus/OpenMetrics format. Metrics can be collected by Prometheus stack or compatible agents, such as DataDog.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="metric-categories">Metric Categories<a href="#metric-categories" class="hash-link" aria-label="Direct link to Metric Categories" title="Direct link to Metric Categories"></a></h3><ol><li><p><strong>Ingestion Metrics</strong></p><ul><li><code>datahub_executor_worker_ingestion_requests</code> - Total jobs received</li><li><code>datahub_executor_worker_ingestion_errors</code> - Failed jobs (v0.3.9+)</li></ul></li><li><p><strong>Resource Metrics</strong> (v0.3.9+)</p><ul><li>Memory: <code>datahub_executor_memory_*</code></li><li>CPU: <code>datahub_executor_cpu_*</code></li><li>Disk: <code>datahub_executor_disk_*</code></li><li>Network: <code>datahub_executor_net_*</code></li></ul></li></ol><h3 class="anchor anchorWithStickyNavbar_LWe7" id="prometheus-configuration">Prometheus Configuration<a href="#prometheus-configuration" class="hash-link" aria-label="Direct link to Prometheus Configuration" title="Direct link to Prometheus Configuration"></a></h3><p>Example ServiceMonitor resource to allow scraping Remote Executor metrics in Prometheus:</p><div class="language-yaml codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-yaml codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token key atrule">apiVersion</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> monitoring.coreos.com/v1</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">kind</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> ServiceMonitor</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">metadata</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">labels</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">name</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> datahub</span><span class="token punctuation" style="color:rgb(199, 146, 234)">-</span><span class="token plain">remote</span><span class="token punctuation" style="color:rgb(199, 146, 234)">-</span><span class="token plain">executor</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token key atrule">spec</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">endpoints</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">-</span><span class="token plain"> </span><span class="token key atrule">port</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> metrics</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">selector</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">matchLabels</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">app.kubernetes.io/name</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> datahub</span><span class="token punctuation" style="color:rgb(199, 146, 234)">-</span><span class="token plain">remote</span><span class="token punctuation" style="color:rgb(199, 146, 234)">-</span><span class="token plain">executor</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h3 class="anchor anchorWithStickyNavbar_LWe7" id="discovering-available-metrics">Discovering Available Metrics<a href="#discovering-available-metrics" class="hash-link" aria-label="Direct link to Discovering Available Metrics" title="Direct link to Discovering Available Metrics"></a></h3><ol><li><p>View metrics endpoint directly:</p><div class="language-bash codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-bash codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token function" style="color:rgb(130, 170, 255)">curl</span><span class="token plain"> http://your-executor:9087/metrics</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></li><li><p>Read annotations in Prometheus UI</p></li><li><p>Search <code>datahub_executor_*</code> in your monitoring system</p></li></ol><div class="theme-admonition theme-admonition-note alert alert--secondary admonition_LlT9"><div class="admonitionHeading_tbUL"><span class="admonitionIcon_kALy"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M6.3 5.69a.942.942 0 0 1-.28-.7c0-.28.09-.52.28-.7.19-.18.42-.28.7-.28.28 0 .52.09.7.28.18.19.28.42.28.7 0 .28-.09.52-.28.7a1 1 0 0 1-.7.3c-.28 0-.52-.11-.7-.3zM8 7.99c-.02-.25-.11-.48-.31-.69-.2-.19-.42-.3-.69-.31H6c-.27.02-.48.13-.69.31-.2.2-.3.44-.31.69h1v3c.02.27.11.5.31.69.2.2.42.31.69.31h1c.27 0 .48-.11.69-.31.2-.19.3-.42.31-.69H8V7.98v.01zM7 2.3c-3.14 0-5.7 2.54-5.7 5.68 0 3.14 2.56 5.7 5.7 5.7s5.7-2.55 5.7-5.7c0-3.15-2.56-5.69-5.7-5.69v.01zM7 .98c3.86 0 7 3.14 7 7s-3.14 7-7 7-7-3.12-7-7 3.14-7 7-7z"></path></svg></span>note</div><div class="admonitionContent_S0QG"><p>Platform-specific metrics (e.g., container restarts) should be monitored through native tooling (CloudWatch for ECS, Kubernetes metrics for K8s).</p></div></div></div><footer class="theme-doc-footer docusaurus-mt-lg"><div 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