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https://issues.apache.org/jira/browse/HBASE-2295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12842797#action_12842797
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dhruba borthakur commented on HBASE-2295:
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I agree, that is the case for all native items like byte[]. I will change it.
> Row locks may deadlock with themselves
> --------------------------------------
>
> Key: HBASE-2295
> URL: https://issues.apache.org/jira/browse/HBASE-2295
> Project: Hadoop HBase
> Issue Type: Bug
> Components: regionserver
> Reporter: Todd Lipcon
> Attachments: rowLockDeadlock.txt
>
>
> Row locks in HRegion are keyed by a int-sized hash of the row key. It's
> perfectly possible for two rows to hash to the same key. So, if any client
> tries to lock both rows, it will deadlock with itself. Switching to a 64-bit
> hash is an improvement but still sketchy.
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