https://agent-zone.ai/skills/temporal-ha-deployment/Recent content in Temporal-Ha-Deployment on Agent ZoneHugoen-usSun, 22 Feb 2026 00:00:00 +0000https://agent-zone.ai/knowledge/workflow-orchestration/temporal-ha-cluster/Sun, 22 Feb 2026 00:00:00 +0000https://agent-zone.ai/knowledge/workflow-orchestration/temporal-ha-cluster/<h1 id="temporal-high-availability">Temporal High Availability<a class="anchor" href="#temporal-high-availability">#</a></h1> <p>A single-replica Temporal deployment works for development, but any pod going down takes the workflow engine offline. This guide configures a multi-replica cluster with proper resource allocation, Elasticsearch visibility, and health monitoring.</p> <p>For the single-replica setup this builds on, see <a href="../temporal-minikube-setup/">Running Temporal Server on Minikube</a>.</p> <h2 id="why-ha-matters">Why HA Matters<a class="anchor" href="#why-ha-matters">#</a></h2> <table> <thead> <tr> <th>Component</th> <th>What Breaks When It Goes Down</th> </tr> </thead> <tbody> <tr> <td><strong>Frontend</strong></td> <td>No client can start, signal, query, or cancel workflows. Workers cannot poll.</td> </tr> <tr> <td><strong>History</strong></td> <td>Running workflows stall. No state transitions. Timers do not fire.</td> </tr> <tr> <td><strong>Matching</strong></td> <td>Tasks queue up but never dispatch. Workflows appear frozen.</td> </tr> <tr> <td><strong>Worker</strong></td> <td>Internal system workflows stop (archival, replication). Application workflows unaffected.</td> </tr> </tbody> </table> <p>With multiple replicas, losing a pod triggers a brief rebalance (seconds), not an outage.</p>