[GitHub] [kafka] OmniaGM commented on pull request #11220: KAFKA-10777: Add additional configuration to control MirrorMaker 2 internal topics naming convention

["OmniaGM (via GitHub)" <gi...@apache.org>]

OmniaGM commented on PR #11220:
URL: https://github.com/apache/kafka/pull/11220#issuecomment-1550453763

   > Hello, I know this PR is merged but I have an issue related to it while implementing a custom ReplicationPolicy to override the `heartbeat` topic name. According to the resources below, In order to achieve it, It's necessary to create a jar file and to reference it in the `plugin.path` properties file. Unfortunately it didn't work. What worked was setting the jar file path in the `CLASSPATH` environment variable. So either such config is missing in the documentation or I am doing something wrong in which case I would be thankful if you point it out. Resources : https://cwiki.apache.org/confluence/display/KAFKA/KIP-690%3A+Add+additional+configuration+to+control+MirrorMaker+2+internal+topics+naming+convention https://stackoverflow.com/questions/59390555/is-it-possible-to-replicate-kafka-topics-without-alias-prefix-with-mirrormaker2 I will be more than happy to provide more context.
   
   Hi @ahibot , 
   The issue you are facing was reported back in 2020 against Kafka 2.4 (details [here](https://issues.apache.org/jira/browse/KAFKA-9376) and @ryannedolan mentioned that he couldn't reproduce the same issue at the time.  So I don't believe this issue you are describing is related to this PR and KIP-690 which was released in Kafa 3.1. 
   
   However, I can see that the comments on [KAFKA-9376](https://issues.apache.org/jira/browse/KAFKA-9376) suggest `CLASSPATH` as a workaround and there is even a comment mentioning that they can't see this issue with 2.5 anymore. So if you are running version >= 2.5 then I would recommend commenting on [KAFKA-9376](https://issues.apache.org/jira/browse/KAFKA-9376) with more details regarding how to reproduce this issue and which version you are using.


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