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Posted to dev@aurora.apache.org by "Joe Smith (JIRA)" <ji...@apache.org> on 2014/01/25 23:29:38 UTC

[jira] [Commented] (AURORA-52) Track percentile stats about replicated log write latency

    [ https://issues.apache.org/jira/browse/AURORA-52?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13882084#comment-13882084 ] 

Joe Smith commented on AURORA-52:
---------------------------------

In theory the work performed in AURORA-118 could be used to export this.

> Track percentile stats about replicated log write latency
> ---------------------------------------------------------
>
>                 Key: AURORA-52
>                 URL: https://issues.apache.org/jira/browse/AURORA-52
>             Project: Aurora
>          Issue Type: Story
>          Components: Scheduler
>            Reporter: Bill Farner
>            Priority: Minor
>
> We currently track the aggregate log append write latency, but this doesn't tell the whole story.  We've encountered situations in production where kernel and disk issues can lead to a long tail of high latency appends, which are buried in the aggregate.



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