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https://issues.apache.org/jira/browse/HBASE-28598?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duo Zhang resolved HBASE-28598.
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Fix Version/s: 2.4.18
2.7.0
2.6.1
2.5.9
Hadoop Flags: Reviewed
Resolution: Fixed
Pushed to all branch-2.x.
Thanks [~vineet.4008]!
> NPE for writer object access in AsyncFSWAL#closeWriter
> ------------------------------------------------------
>
> Key: HBASE-28598
> URL: https://issues.apache.org/jira/browse/HBASE-28598
> Project: HBase
> Issue Type: Bug
> Components: wal
> Affects Versions: 2.6.0, 2.4.18, 2.5.9
> Reporter: Vineet Kumar Maheshwari
> Assignee: Vineet Kumar Maheshwari
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.4.18, 2.7.0, 2.6.1, 2.5.9
>
>
> Observed NPE during execution of some of the UT cases.
> Exception is happening in AbstractFSWAL#closeWriter when trying to put null
> writer object in inflightWALClosures map.
> Need to add null check for writer object in AsyncFSWAL#doShutdown function
> before its usage.
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