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https://issues.apache.org/jira/browse/HBASE-4572?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13125240#comment-13125240
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Karthik Ranganathan commented on HBASE-4572:
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Compactions are already multi-threaded (I am talking about 0.92 and trunk), see
CompactSplitThread.java and look for conf settings like
"hbase.regionserver.thread.compaction.large" and
"hbase.regionserver.thread.compaction.small". There are now 2 queues - a queue
for large compactions and another for small ones (defined by the amount of data
it has to read in order to compact). Each can be serviced by a configurable
number of threads.
Does this work for you?
> Multithread compaction in regionserver
> --------------------------------------
>
> Key: HBASE-4572
> URL: https://issues.apache.org/jira/browse/HBASE-4572
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Affects Versions: 0.90.4
> Reporter: Aaron Guo
> Fix For: 0.92.0
>
>
> RegionServer only have one thread doing region compaction staff.
> Could We adjust the RegionServer compation thread num and priority online.
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