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https://issues.apache.org/jira/browse/KAFKA-45?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13226523#comment-13226523
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Jay Kreps commented on KAFKA-45:
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I think we are overthinking this. Currently cleanup is not a precise SLA, it is
just a guarantee of the form "we will never delete anything younger than X OR
we will always maintain at least Y bytes of messages". Trying to maintain this
in synchronous form across nodes is overkill I think. It is fine if every node
acts independently as long as each of them respects the SLA. I think this
should be much simpler and more likely to work.
> Broker startup, leader election, becoming a leader/follower for intra-cluster
> replication
> -----------------------------------------------------------------------------------------
>
> Key: KAFKA-45
> URL: https://issues.apache.org/jira/browse/KAFKA-45
> Project: Kafka
> Issue Type: Bug
> Reporter: Jun Rao
>
> We need to implement the logic for starting a broker with replicated
> partitions, the leader election logic and how to become a leader and a
> follower.
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