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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-2206) [IHBASE] Idx memory allocation fix
Date Tue, 09 Feb 2010 23:39:28 GMT

     [ https://issues.apache.org/jira/browse/HBASE-2206?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-2206:
-------------------------

    Status: Patch Available  (was: Open)

> [IHBASE] Idx memory allocation fix
> ----------------------------------
>
>                 Key: HBASE-2206
>                 URL: https://issues.apache.org/jira/browse/HBASE-2206
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>             Fix For: 0.20.4
>
>         Attachments: 4-idx-memory-allocation-fixes
>
>
>  Idx memory allocation fix
>   - Includes a modification to core - MemStore was added with a numKeyValues query
>   - It optimizes the number of memory allocation required to rebuild the index.  This
is a major fix - it reduces the heap fragmentation and helped postpone/fix (not yet sure which
of those) the region server crashing due to those long GC periods on a write-intensive setup

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