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https://issues.apache.org/jira/browse/HBASE-11290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14240851#comment-14240851
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Virag Kothari commented on HBASE-11290:
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I have an updated patch..will put it up tomorrow
> Unlock RegionStates
> -------------------
>
> Key: HBASE-11290
> URL: https://issues.apache.org/jira/browse/HBASE-11290
> Project: HBase
> Issue Type: Sub-task
> Reporter: Francis Liu
> Assignee: Virag Kothari
> Attachments: HBASE-11290-0.98.patch, HBASE-11290.draft.patch
>
>
> Even though RegionStates is a highly accessed data structure in HMaster. Most
> of it's methods are synchronized. Which limits concurrency. Even simply
> making some of the getters non-synchronized by using concurrent data
> structures has helped with region assignments. We can go as simple as this
> approach or create locks per region or a bucket lock per region bucket.
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