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From "Jim Kellerman (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-2139) [hbase] Increase parallelism in region servers
Date Thu, 01 Nov 2007 17:46:50 GMT
[hbase] Increase parallelism in region servers
----------------------------------------------

                 Key: HADOOP-2139
                 URL: https://issues.apache.org/jira/browse/HADOOP-2139
             Project: Hadoop
          Issue Type: Improvement
          Components: contrib/hbase
    Affects Versions: 0.16.0
            Reporter: Jim Kellerman
            Assignee: Jim Kellerman
             Fix For: 0.16.0


There are a number of paths in the region server which block against one another including:
- log rolling
- cache flushes
- region splitting
- updates
- scanners

Investigate which can proceed in parallel and mechanisms for making some operations that currently
do not run in parallel.

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