[jira] [Created] (KAFKA-10719) MirrorMaker2 fails to update its runtime configuration

["Peter Sinoros-Szabo (Jira)" <ji...@apache.org>]

Peter Sinoros-Szabo created KAFKA-10719:
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             Summary: MirrorMaker2 fails to update its runtime configuration
                 Key: KAFKA-10719
                 URL: https://issues.apache.org/jira/browse/KAFKA-10719
             Project: Kafka
          Issue Type: Bug
    Affects Versions: 2.6.0
            Reporter: Peter Sinoros-Szabo


I was running successfully the MM2 cluster with the following configuration, I simplified it a little: {code:java} clusters = main, backup main.bootstrap.servers = kafkaA:9202,kafkaB:9092,kafkaB:9092 backup.bootstrap.servers = backupA:9092,backupB:9092,backupC:9092 main->backup.enabled = true main->backup.topics = .*{code} I wanted to change the bootstrap.address list of the destination cluster to a different list that is pointing to the *same* cluster, just a different listener with a different routing. So I changed it to: {code:java} backup.bootstrap.servers = backupSecA:1234,backupSecB:1234,backupSecC:1234{code} I did a rolling restart on the MM2 nodes and say that some tasks were still using the old bootstrap addresses, some of them were using the new one. I don't have the logs, so unfortunately I don't know which one picked up the good values and which didn't. I even stopped the cluster completely, but it didn't help. Ryanne adviced to delete the mm2-config and mm2-status topics, so I did delete those on the destination cluster, that solved this issue.



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