Sample Kafka ksqlDB pipeline review

This sample shows the shape of the paid deliverable. A real review is tailored from the buyer's Compose stack, connector config, ksqlDB queries, topic list, logs, and failure mode.

Example finding

• Pipeline state: Zookeeper, broker, Schema Registry, ksqlDB server, and embedded Connect are defined together, but readiness and listener behavior are not yet validated as separate checks.
• Main risk: connector creation and stream queries can fail for different reasons while producing similar symptoms: broker not reachable, Schema Registry unavailable, Avro converter mismatch, topic not created, or plugin path missing.
• Reliability decision: split startup validation into broker/listeners, schema registry, Connect worker, connector creation, topic data, and ksqlDB query checks before adding more streams.

Example next experiments

1. Add a smoke script that checks broker metadata, Schema Registry subjects, Connect plugins, connector status, and ksqlDB server health.
2. Pin container versions before debugging connector behavior across restarts.
3. Record topic creation, PRINT output, and CREATE STREAM results as a reproducible fixture.
4. Only then tune converter settings, reset commands, and production-like replication/security assumptions.

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