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From "Jonathan Gray (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-1476) scaling compaction with milti threads
Date Wed, 28 Apr 2010 20:35:49 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1476?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jonathan Gray updated HBASE-1476:

    Fix Version/s: 0.20.5

Would like to get this in to 0.20.5.  Working on this actively now.

> scaling compaction with milti threads
> -------------------------------------
>                 Key: HBASE-1476
>                 URL: https://issues.apache.org/jira/browse/HBASE-1476
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: regionserver
>            Reporter: Billy Pearson
>            Assignee: Jonathan Gray
>             Fix For: 0.20.5, 0.21.0
> Was thinking we should build in support to be able to handle more then one thread for
compactions this will allow us to keep up with compactions when we get to the point where
we store Tb's of data per node and may regions
> Maybe a configurable setting to set how many threads a region server can use for compactions.
> With compression turned on my compactions are limited by cpu speed with multi cores then
it would be nice to be able to scale compactions to 2 or more cores.

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