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https://issues.apache.org/jira/browse/KAFKA-17784?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17892672#comment-17892672
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Zhijian Chen commented on KAFKA-17784:
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In the MirrorMaker scenario, a MirrorMaker process runs multiple Herders, each
handling different source cluster events.
Now if one Herder has an exception, it will cause the MirrorMaker process to
exit, causing other Herders that don't have problems to exit, affecting all of
them, which I think is unreasonable, or at least the isolation is not done
properly.
> Mirror Maker2 Pod CrashLoopbackOff
> ----------------------------------
>
> Key: KAFKA-17784
> URL: https://issues.apache.org/jira/browse/KAFKA-17784
> Project: Kafka
> Issue Type: Bug
> Components: mirrormaker
> Affects Versions: 3.7.1
> Reporter: George Yang
> Priority: Blocker
> Attachments: connect-1.log
>
>
> When I use k8s deployment with mirrormaker v3.7.1, and deploy one kafka node
> in each data center, I always got the crashloopbackoff error, please see the
> attachment.
>
> The configuration of mirrormaker is:
> ```configuration
> clusters = idca, idcb
> idca.bootstrap.servers = 192.168.2.146:13399
> idcb.bootstrap.servers = 192.168.2.147:13399
> idca->idcb.enabled = true
> idca->idcb.topics = .*
> idcb->idca.enabled = true
> idcb->idca.topics = .*
> replication.factor=1
> tasks.max=6
> emit.checkpoints.interval.seconds=5
> idca.producer.acks=all
> idca.producer.batch.size=50000
> idca.consumer.auto.offset.reset=latest
> idcb.consumer.auto.offset.reset=latest
> idca.consumer.max.poll.interval.ms=20000
> idcb.consumer.max.poll.interval.ms=20000
> refresh.topics.enabled=true
> refresh.topics.interval.seconds=5
> refresh.groups.enabled=true
> refresh.groups.interval.seconds=5
> dedicated.mode.enable.internal.rest = true
> idca.scheduled.rebalance.max.delay.ms=20000
> idcb.scheduled.rebalance.max.delay.ms=20000
> checkpoints.topic.replication.factor=3
> heartbeats.topic.replication.factor=3
> offset-syncs.topic.replication.factor=3
> offset.storage.replication.factor=3
> status.storage.replication.factor=3
> ```
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