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https://issues.apache.org/jira/browse/KAFKA-17851?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17909034#comment-17909034
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Zhijian Chen commented on KAFKA-17851:
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[~gharris1727] Thanks, I will continue to focus on the KIP:
https://cwiki.apache.org/confluence/display/KAFKA/KIP-1098%3A+Reverse+Checkpointing+in+MirrorMaker
> Save internal topic to a separate kafka cluster
> -----------------------------------------------
>
> Key: KAFKA-17851
> URL: https://issues.apache.org/jira/browse/KAFKA-17851
> Project: Kafka
> Issue Type: Improvement
> Components: mirrormaker
> Reporter: Zhijian Chen
> Priority: Major
>
> For the mm2-offset-syncs topic there is a parameter to control its storage
> cluster: offset-syncs.topic.location, but this parameter can only control
> whether it is in the source or target cluster.
> For checkpoints topic and heartbeat topic, there is no parameter to control
> their storage clusters.
> In a multi-cluster backup scenario, we would like to store these internal
> topics in a separate kafka cluster, which has the advantage of being easy to
> manage, and we can deploy this separate cluster across three server rooms so
> that we don't have to worry about the failure of this separate cluster, which
> also solves the problem of the existing scenario, where the internal topics
> cannot be accessed due to the failure of the source or target clusters.
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