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https://issues.apache.org/jira/browse/HDFS-6110?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Liang Xie updated HDFS-6110:
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Attachment: (was: HDFS-6110v5.txt)
> adding more slow action log in critical write path
> --------------------------------------------------
>
> Key: HDFS-6110
> URL: https://issues.apache.org/jira/browse/HDFS-6110
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Affects Versions: 3.0.0, 2.3.0
> Reporter: Liang Xie
> Assignee: Liang Xie
> Attachments: HDFS-6110-v2.txt, HDFS-6110.txt, HDFS-6110v3.txt,
> HDFS-6110v4.txt, HDFS-6110v5.txt
>
>
> After digging a HBase write spike issue caused by slow buffer io in our
> cluster, just realize we'd better to add more abnormal latency warning log in
> write flow, such that if other guys hit HLog sync spike, we could know more
> detail info from HDFS side at the same time.
> Patch will be uploaded soon.
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