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https://issues.apache.org/jira/browse/HBASE-12765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14260566#comment-14260566
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Lars Hofhansl commented on HBASE-12765:
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[~eclark], do you have a recommendation as to where the keep track of split
metrics? It does not make sense to put then on the region as the parent region
will go away, this would need to be stored per region server somehow. I could
add counters to HRegionServer or maybe add new counters to
MetricsRegionServerSource?
> SplitTransaction creates too many threads (potentially)
> -------------------------------------------------------
>
> Key: HBASE-12765
> URL: https://issues.apache.org/jira/browse/HBASE-12765
> Project: HBase
> Issue Type: Brainstorming
> Reporter: Lars Hofhansl
> Attachments: 12765.txt
>
>
> In splitStoreFiles(...) we create a new thread pool with as many threads as
> there are files to split.
> We should be able to do better. During times of very heavy write loads there
> might be a lot of files to split and multiple splits might be going on at the
> same time on the same region server.
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