farmmamba created HDFS-17173:
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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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