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https://issues.apache.org/jira/browse/HBASE-21270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16640547#comment-16640547
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Allan Yang commented on HBASE-21270:
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For rollback, Throwable is already caught in 'private LockState
executeRollback(Procedure<TEnvironment> proc) '， the lock will be released
anyway. so we don't have to catch throwable again in the outside.
For execProcedure, have you encountered a case that an exception is thrown and
the lock was not released? I think if this is a case here, it is more dangerous
to release the lock here than just stuck there until we figure out why.
> [amv2] Let go of Procedure entity lock on CODE-BUG or
> UnsupportedOperationException
> -----------------------------------------------------------------------------------
>
> Key: HBASE-21270
> URL: https://issues.apache.org/jira/browse/HBASE-21270
> Project: HBase
> Issue Type: Bug
> Components: amv2
> Reporter: stack
> Priority: Major
> Fix For: 2.2.0, 2.1.1, 2.0.3
>
> Attachments: HBASE-21270.branch-2.1.001.patch,
> HBASE-21270.branch-2.1.002.patch
>
>
> Small patch but helps when we run into ugly bugs... Let go of the entity lock.
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