System Health Overview
Real-time pub/sub bus telemetry logs and core platform stats
1. Navigate to Schema Registry and register a schema for your topic pattern (e.g. events.user.*).
2. Navigate to Workers & Simulator, and create a mock worker matching that subject (e.g. durable name worker-group-A listening to events.user.created). Configure a failure rate (e.g., 0.4 or 40% failure) to test dead-lettering.
3. Go to Streams & Inspector, enter subject events.user.created and publish some payloads. Watch the validator block invalid items, and pass valid ones.
4. Watch the Telemetry Console above process the message, run retries, and output failed events into the Dead-Letter Queue.
5. Open the Dead-Letter Queuepanel, review the error traces, adjust the worker's success rate to 100%, and click **Replay** to clear the DLQ!