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https://issues.apache.org/jira/browse/STORM-1017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14903638#comment-14903638
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ASF GitHub Bot commented on STORM-1017:
---------------------------------------

Github user priyank5485 commented on the pull request:

    https://github.com/apache/storm/pull/754#issuecomment-142448505
  
    @harshach Created JIRA item for that. @ptgoetz can you please review this 
as well?


> If ignoreZkOffsets set true,KafkaSpout will reset zk offset when recover from 
> failure.
> --------------------------------------------------------------------------------------
>
>                 Key: STORM-1017
>                 URL: https://issues.apache.org/jira/browse/STORM-1017
>             Project: Apache Storm
>          Issue Type: Bug
>          Components: storm-kafka
>            Reporter: Renkai Ge
>            Assignee: Priyank Shah
>
> when ignoreZkOffsets set true and startOffsetTime = 
> kafka.api.OffsetRequest.EarliestTime().
> workers running -> topology shutdown by user and restart -> workers will read 
> from earliest time again
> workers running -> one of workers shutdown by accident and supervisor restart 
> the worker -> what offset will the restarted worker read from?
> More details on 
> https://github.com/apache/storm/pull/493#issuecomment-135783234
> It will cause a lot of unwanted duplicated messages in some scenes.



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