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https://issues.apache.org/jira/browse/HDFS-17335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18024714#comment-18024714
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ASF GitHub Bot commented on HDFS-17335:
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github-actions[bot] closed pull request #6431: HDFS-17335. Add metrics for
syncWaitQ in FSEditLogAsync
URL: https://github.com/apache/hadoop/pull/6431
> Add metrics for syncWaitQ in FSEditLogAsync
> -------------------------------------------
>
> Key: HDFS-17335
> URL: https://issues.apache.org/jira/browse/HDFS-17335
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Affects Versions: 3.3.6
> Reporter: farmmamba
> Assignee: farmmamba
> Priority: Minor
> Labels: pull-request-available
>
> To monitor syncWaitQ in FSEditLogAsync, we add a metric syncPendingCount.
> The reason we add this metrics is that when dequeueEdit() return null, the
> boolean variable doSync is set to {color:#0747a6}+!syncWaitQ.isEmpty()+
> {color:#172b4d}After adding this metrics we can better monitor sync
> performance and codes.{color}{color}
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