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https://issues.apache.org/jira/browse/HBASE-12765?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lars Hofhansl updated HBASE-12765:
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Attachment: 12765.txt
Trivial patch. Just adds two log lines.
Need to think a bit about metric, as these are not region metrics (the parent
region will soon go away, so no point recording how many splits were executed
or how many HFiles were split)
> 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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