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https://issues.apache.org/jira/browse/KAFKA-3038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15085628#comment-15085628
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Eno Thereska commented on KAFKA-3038:
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[~fpj]: makes sense, thanks
> Speeding up partition reassignment after broker failure
> -------------------------------------------------------
>
> Key: KAFKA-3038
> URL: https://issues.apache.org/jira/browse/KAFKA-3038
> Project: Kafka
> Issue Type: Improvement
> Components: controller, core
> Affects Versions: 0.9.0.0
> Reporter: Eno Thereska
> Assignee: Eno Thereska
> Fix For: 0.9.0.0
>
>
> After a broker failure the controller does several writes to Zookeeper for
> each partition on the failed broker. Writes are done one at a time, in closed
> loop, which is slow especially under high latency networks. Zookeeper has
> support for batching operations (the "multi" API). It is expected that
> substituting serial writes with batched ones should reduce failure handling
> time by an order of magnitude.
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