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https://issues.apache.org/jira/browse/CHUKWA-313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12721510#action_12721510
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Eric Yang commented on CHUKWA-313:
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+1 on removing flush.
> Remove the 10 sec ack from SeqWriter
> ------------------------------------
>
> Key: CHUKWA-313
> URL: https://issues.apache.org/jira/browse/CHUKWA-313
> Project: Hadoop Chukwa
> Issue Type: Improvement
> Reporter: Jerome Boulon
> Assignee: Jerome Boulon
>
> SeqWriter.add is waiting 10 sec in a worse case before calling a flush. This
> was there to guarantee that the data has been written to HDFS before
> returning the ack.
> It used to work well with 0.18 but in 0.20 the flush is a nohup so there's no
> point in waiting 10 sec for nothing.
> The real flush will give us the ability to write redo logs directly to HDFS
> so the ack implementation will have to change anyway.
> So I vote for removing the 10 sec ack from the add method.
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