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https://issues.apache.org/jira/browse/HBASE-3797?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nicolas Spiegelberg resolved HBASE-3797.
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Resolution: Fixed
Fix Version/s: 0.92.0
Added with Stack's requests. Compaction throttling is turned off by default.
I agree that it should be enabled by default, but decided to save that for
another JIRA so we can discuss how we arrive at the default.
> StoreFile Level Compaction Locking
> ----------------------------------
>
> Key: HBASE-3797
> URL: https://issues.apache.org/jira/browse/HBASE-3797
> Project: HBase
> Issue Type: Improvement
> Reporter: Nicolas Spiegelberg
> Assignee: Nicolas Spiegelberg
> Priority: Minor
> Fix For: 0.92.0
>
> Attachments: HBASE-3797+1476.patch
>
>
> Multithreaded compactions (HBASE-1476) will solve the problem of major
> compactions clogging high-priority minor compactions. However, there is
> still a problem here. Since compactions are store-level, the store
> undergoing major compaction will have it's storefile count increase during
> the major. We really need a way to allow multiple outstanding compactions
> per store. compactSelection() should lock/reserve the files being used for
> compaction. This will also allow us to know what we're going to compact when
> inserting into the CompactSplitThread and make more informed priority
> queueing decisions.
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