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https://issues.apache.org/jira/browse/HDFS-17387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17822340#comment-17822340
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ASF GitHub Bot commented on HDFS-17387:
---------------------------------------

ZanderXu commented on PR #6572:
URL: https://github.com/apache/hadoop/pull/6572#issuecomment-1972341796

   > @ZanderXu @ferhui Thank you for work! I tried to upgrade the 
maven-surefire-plugin (#6537) on the trunk, but it was unsuccessful, which may 
cause some unit tests to fail to run. I rolled back this pr (#6578), and I 
cherrypicked this pr(#6578) to the 
[HDFS-17384](https://issues.apache.org/jira/browse/HDFS-17384) branch.
   
   @slfan1989 Thanks so much. I will rebase this PR again.




> [FGL] Abstract the configurable locking mode
> --------------------------------------------
>
>                 Key: HDFS-17387
>                 URL: https://issues.apache.org/jira/browse/HDFS-17387
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: ZanderXu
>            Assignee: ZanderXu
>            Priority: Major
>              Labels: pull-request-available
>
> Abstract a lock mode to cover the current global lock and the new 
> fine-grained lock(global FS lock and global BM lock).
> End-user can select to use lock mode through configuration.
> The possible lock modes after this patch are as follows:
>  * GLOBAL Lock
>  * FS Lock
>  * BM Lock



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