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Posted to dev@hbase.apache.org by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org> on 2010/04/05 22:06:29 UTC

[jira] Resolved: (HBASE-2252) Mapping a very big table kills region servers

     [ https://issues.apache.org/jira/browse/HBASE-2252?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jean-Daniel Cryans resolved HBASE-2252.
---------------------------------------

      Resolution: Fixed
    Hadoop Flags: [Reviewed]

Committed to branch and trunk, thanks for the review guys.

> Mapping a very big table kills region servers
> ---------------------------------------------
>
>                 Key: HBASE-2252
>                 URL: https://issues.apache.org/jira/browse/HBASE-2252
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>             Fix For: 0.20.4, 0.21.0
>
>         Attachments: HBASE-2252.patch
>
>
> Currently TableInputFormat doesn't change the block caching behavior of scans and one of our table grew so big that using the defaults we kill a least one region server per job run (because of GCs even if we have a heap of 7GB). This doesn't scale well, we should set it by default to false.

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