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Posted to dev@hbase.apache.org by "Andrew Kyle Purtell (Jira)" <ji...@apache.org> on 2022/06/14 22:18:00 UTC
[jira] [Resolved] (HBASE-7050) Document locking of HRegion
[ https://issues.apache.org/jira/browse/HBASE-7050?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrew Kyle Purtell resolved HBASE-7050.
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Resolution: Not A Problem
> Document locking of HRegion
> ---------------------------
>
> Key: HBASE-7050
> URL: https://issues.apache.org/jira/browse/HBASE-7050
> Project: HBase
> Issue Type: Task
> Components: documentation, Transactions/MVCC
> Reporter: Gregory Chanan
> Priority: Minor
>
> Would be good to have some documentation on the locking in HRegion. In particular, the updateLock and the row locks.
> With the optimizations that have been made, e.g. HBASE-5541 this isn't straightforward.
> When do these locks need to be held? What structures do they protect access to? Why does the updateLock not need to be held during rollback? Those sorts of questions.
> I've started do to some of this, but haven't fully fleshed it out.
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