maobaolong created HDFS-12803:
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Summary: We should not lock FsNamesystem even we operate a sub
directory, we should refinement the lock
Key: HDFS-12803
URL: https://issues.apache.org/jira/browse/HDFS-12803
Project: Hadoop HDFS
Issue Type: Bug
Components: hdfs
Affects Versions: 3.0.0-alpha3, 2.7.1
Reporter: maobaolong
An example:
If a client is doing mkdir or delete a file, other client will wait for the
FSNamesystem's lock to do some operation.
I think we have to refinement the lock. we can lock the parent inode only.
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