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https://issues.apache.org/jira/browse/HDFS-17523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17855534#comment-17855534
 ] 

ASF GitHub Bot commented on HDFS-17523:
---------------------------------------

hadoop-yetus commented on PR #6890:
URL: https://github.com/apache/hadoop/pull/6890#issuecomment-2172621694

   :confetti_ball: **+1 overall**
   
   
   
   
   
   
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[/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6890/1/artifact/out/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt)
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> Add  fine-grained locks metrics in DataSetLockManager
> -----------------------------------------------------
>
>                 Key: HDFS-17523
>                 URL: https://issues.apache.org/jira/browse/HDFS-17523
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: lei w
>            Priority: Major
>              Labels: pull-request-available
>
> Currently we use fine-grained locks to manage FsDataSetImpl. But we did not 
> add lock-related metrics. In some cases, we actually need lock-holding 
> information to understand the time-consuming lock-holding of a certain 
> operation. Using this information, we can also optimize some long-term lock 
> operations as early as possible.



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