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https://issues.apache.org/jira/browse/KAFKA-12719?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bui Thanh MInh resolved KAFKA-12719.
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Resolution: Auto Closed
Need to restart all mm2 instances
> Kafka MirrorMaker 2 can only mirror in one direction in Active/Active config
> ----------------------------------------------------------------------------
>
> Key: KAFKA-12719
> URL: https://issues.apache.org/jira/browse/KAFKA-12719
> Project: Kafka
> Issue Type: Bug
> Components: mirrormaker
> Affects Versions: 2.7.0
> Reporter: Bui Thanh MInh
> Priority: Major
>
> Config:
> _clusters = DC1, DC2_
> _NPS.bootstrap.servers = <DC1-Brokers>_
> _NTL.bootstrap.servers = <DC2-Brokers>_
> _# Source and target clusters configurations._
> _config.storage.replication.factor = 3_
> _offset.storage.replication.factor = 3_
> _status.storage.replication.factor = 3_
> _DC1->DC2.enabled = true_
> _DC2->DC1.enabled = true_
> _# Mirror maker configurations._
> _offset-syncs.topic.replication.factor = 3_
> _heartbeats.topic.replication.factor = 3_
> _checkpoints.topic.replication.factor = 3_
> _topics = .*_
> _groups = .*_
>
> In my test case, I turn off whole DC1, and client will switch to DC2, after
> that I bring cluster in DC1 back, restart MM2 with no error and realize that
> no topics was replicated from DC2->DC1. I don't know why and how to check in
> this case. What's wrong in my configuration?
>
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