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https://issues.apache.org/jira/browse/HDFS-17173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17760257#comment-17760257
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farmmamba commented on HDFS-17173:
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[~hexiaoqiao] [~tomscut] [~zhangshuyan] Sir, could you please help me figure
out this problem when you have free time?
> Whether the read lock in method moveBlockAcrossVolumes can be removed or not?
> -----------------------------------------------------------------------------
>
> Key: HDFS-17173
> URL: https://issues.apache.org/jira/browse/HDFS-17173
> Project: Hadoop HDFS
> Issue Type: Wish
> Components: datanode
> Affects Versions: 3.4.0
> Reporter: farmmamba
> Assignee: farmmamba
> Priority: Minor
>
> In method FsDatasetImpl#moveBlockAcrossVolumes, obtaining volumeRef is
> guarded by
> LockLevel.BLOCK_POOl read lock. It seems unnecessary.
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