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Posted to dev@kafka.apache.org by "Guozhang Wang (JIRA)" <ji...@apache.org> on 2017/04/20 20:38:04 UTC

[jira] [Resolved] (KAFKA-4937) Batch resetting offsets in Streams' StoreChangelogReader

     [ https://issues.apache.org/jira/browse/KAFKA-4937?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guozhang Wang resolved KAFKA-4937.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 0.11.0.0

Issue resolved by pull request 2769
[https://github.com/apache/kafka/pull/2769]

> Batch resetting offsets in Streams' StoreChangelogReader
> --------------------------------------------------------
>
>                 Key: KAFKA-4937
>                 URL: https://issues.apache.org/jira/browse/KAFKA-4937
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>            Reporter: Guozhang Wang
>            Assignee: Damian Guy
>              Labels: newbie++, performance
>             Fix For: 0.11.0.0
>
>
> Currently in {{StoreChangelogReader}} we are calling {{consumer.position()}} when logging as well as setting starting offset right after {{seekingToBeginning}}, which will incur a blocking round trip with offset request. We should consider batching those in a single round trip for all partitions that needs to seek to beginning (i.e. needs to reset offset).



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