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https://issues.apache.org/jira/browse/KAFKA-1030?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13769884#comment-13769884
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Swapnil Ghike commented on KAFKA-1030:
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+1 that Guozhang, thanks for running the tests.
> Addition of partitions requires bouncing all the consumers of that topic
> ------------------------------------------------------------------------
>
> Key: KAFKA-1030
> URL: https://issues.apache.org/jira/browse/KAFKA-1030
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 0.8
> Reporter: Swapnil Ghike
> Assignee: Guozhang Wang
> Priority: Blocker
> Fix For: 0.8
>
> Attachments: KAFKA-1030-v1.patch
>
>
> Consumer may not notice new partitions because the propagation of the
> metadata to servers can be delayed.
> Options:
> 1. As Jun suggested on KAFKA-956, the easiest fix would be to read the new
> partition data from zookeeper instead of a kafka server.
> 2. Run a fetch metadata loop in consumer, and set auto.offset.reset to
> smallest once the consumer has started.
> 1 sounds easier to do. If 1 causes long delays in reading all partitions at
> the start of every rebalance, 2 may be worth considering.
>
> The same issue affects MirrorMaker when new topics are created, MirrorMaker
> may not notice all partitions of the new topics until the next rebalance.
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