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https://issues.apache.org/jira/browse/HBASE-6930?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Liyin Tang updated HBASE-6930:
------------------------------
Attachment: HBASE-6930.diff
> [89-fb] Avoid acquiring the same row lock repeatedly
> ----------------------------------------------------
>
> Key: HBASE-6930
> URL: https://issues.apache.org/jira/browse/HBASE-6930
> Project: HBase
> Issue Type: Bug
> Reporter: Liyin Tang
> Attachments: HBASE-6930.diff
>
>
> When processing the multiPut, multiMutations or multiDelete operations, each
> IPC handler thread tries to acquire a lock for each row key in these batches.
> If there are duplicated row keys in these batches, previously the IPC handler
> thread will repeatedly acquire the same row key again and again.
> So the optimization is to sort each batch operation based on the row key in
> the client side, and skip acquiring the same row lock repeatedly in the
> server side.
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