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https://issues.apache.org/jira/browse/HDFS-17389?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17820593#comment-17820593
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ASF GitHub Bot commented on HDFS-17389:
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ZanderXu opened a new pull request, #6590:
URL: https://github.com/apache/hadoop/pull/6590
Only hold the BM lock when the last file exists for the Create RPC, so that
the Create RPC can minimize the scope of the global BM lock.
> [FGL] Create RPC minimizes the scope of the global BM lock
> ----------------------------------------------------------
>
> Key: HDFS-17389
> URL: https://issues.apache.org/jira/browse/HDFS-17389
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: ZanderXu
> Assignee: ZanderXu
> Priority: Major
>
> The Create RPC minimizes the scope of the global BM lock, because it doesn't
> need the global BM lock in most scenes.
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