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https://issues.apache.org/jira/browse/HDFS-15808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17296912#comment-17296912
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tomscut edited comment on HDFS-15808 at 3/7/21, 3:53 PM:
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Hi [~shv], I set the wrong commit email address for the patch. Is there any way
to modify it? Thanks.
was (Author: tomscut):
Hi [~shv], I set the wrong commit email address. Is there any way to modify it?
> Add metrics for FSNamesystem read/write lock hold long time
> -----------------------------------------------------------
>
> Key: HDFS-15808
> URL: https://issues.apache.org/jira/browse/HDFS-15808
> Project: Hadoop HDFS
> Issue Type: Wish
> Components: hdfs
> Reporter: tomscut
> Assignee: tomscut
> Priority: Major
> Labels: hdfs, lock, metrics, pull-request-available
> Fix For: 3.3.1, 3.4.0, 3.1.5, 2.10.2, 3.2.3
>
> Attachments: ExpiredHeartbeat.png, HDFS-15808-branch-3.3.001.patch,
> lockLongHoldCount
>
> Time Spent: 6h 10m
> Remaining Estimate: 0h
>
> To monitor how often read/write locks exceed thresholds, we can add two
> metrics(ReadLockLongHoldCount/WriteLockLongHoldCount), which are exposed in
> JMX.
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