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Posted to hdfs-issues@hadoop.apache.org by "farmmamba (Jira)" <ji...@apache.org> on 2023/08/30 07:15:00 UTC

[jira] [Created] (HDFS-17173) Whether the read lock in method moveBlockAcrossVolumes can be removed or not?

farmmamba created HDFS-17173:
--------------------------------

             Summary: 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


In method FsDatasetImpl#moveBlockAcrossVolumes, obtaining volumeRef is guarded by 

LockLevel.BLOCK_POOl read lock. It seems unnecessary.



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