Bertalan Kondrat created KAFKA-18843:
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Summary: MirrorMaker2 workerId is not unique, but use the same for
all the workers
Key: KAFKA-18843
URL: https://issues.apache.org/jira/browse/KAFKA-18843
Project: Kafka
Issue Type: Bug
Components: mirrormaker
Affects Versions: 3.9.0, 3.8.0, 3.7.0, 4.0.0
Reporter: Bertalan Kondrat
Assignee: Bertalan Kondrat
Fix For: 4.0.0
MirrorMaker2 is using the `sourceAndTarget.toString()` as a workerId, that
makes all the worker's IDs the same across the distributed herder.
[https://github.com/apache/kafka/blob/d31cbf59dee6a77c1c673db06900ecc238894ed7/connect/mirror/src/main/java/org/apache/kafka/connect/mirror/MirrorMaker.java#L243]
This not cause any functional issues based on our experience, but renders the
workerId in the status topic messages and in the rest responses useless or
misleading.
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