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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-12765) SplitTransaction creates too many threads (potentially)
Date Mon, 29 Dec 2014 05:47:13 GMT

     [ https://issues.apache.org/jira/browse/HBASE-12765?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Lars Hofhansl updated HBASE-12765:
    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

> 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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