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https://issues.apache.org/jira/browse/HBASE-15028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15067854#comment-15067854
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Ted Yu commented on HBASE-15028:
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+1
> Minor fix on RegionGroupingProvider
> -----------------------------------
>
> Key: HBASE-15028
> URL: https://issues.apache.org/jira/browse/HBASE-15028
> Project: HBase
> Issue Type: Bug
> Components: wal
> Affects Versions: 2.0.0, 1.3.0
> Reporter: Yu Li
> Assignee: Yu Li
> Priority: Minor
> Fix For: 2.0.0, 1.3.0
>
> Attachments: HBASE-15028.patch
>
>
> Currently in {{RegionGroupingProvider#getWAL(String)}} we're trying to get a
> WAL instance from the cache using walCacheLock as the key (a typo when fixing
> HBASE-14306, my fault...), while actually we should have used group name.
> This won't cause any fatal error but will slightly affect the perf since it
> will always run into the succeeding synchronized code. Will get this fixed in
> this JIRA
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