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https://issues.apache.org/jira/browse/HDFS-7491?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Nauroth updated HDFS-7491:
--------------------------------
Resolution: Fixed
Fix Version/s: 2.7.0
Hadoop Flags: Reviewed
Status: Resolved (was: Patch Available)
+1 for the patch. I committed this to trunk, branch-2 and branch-2.7. Ming,
thank you for the patch. Xiaoyu, thank you for assistance with the code review.
The test failures in the last Jenkins run were unrelated. {{TestFileTruncate}}
is a known intermittent failure tracked elsewhere. The other failures don't
repro when I rerun them.
> Add incremental blockreport latency to DN metrics
> -------------------------------------------------
>
> Key: HDFS-7491
> URL: https://issues.apache.org/jira/browse/HDFS-7491
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Reporter: Ming Ma
> Assignee: Ming Ma
> Priority: Minor
> Fix For: 2.7.0
>
> Attachments: HDFS-7491-2.patch, HDFS-7491-3.patch, HDFS-7491-4.patch,
> HDFS-7491-branch-2.patch, HDFS-7491.patch
>
>
> In a busy cluster, IBR processing could be delayed due to NN FSNamesystem
> lock and cause NN to throw NotReplicatedYetException to DFSClient and thus
> increase the overall application latency.
> This will be taken care of when we address the NN FSNamesystem lock
> contention issue.
> It is useful if we can provide IBR latency metrics from DN's point of view.
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