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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2010/09/02 00:30:54 UTC

[jira] Resolved: (HBASE-2844) Capping the number of regions

     [ https://issues.apache.org/jira/browse/HBASE-2844?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack resolved HBASE-2844.
--------------------------

    Resolution: Fixed

Reclosing.  Opened HBASE-2956 to do what Andrew suggests, a cap on regions per table.

> Capping the number of regions
> -----------------------------
>
>                 Key: HBASE-2844
>                 URL: https://issues.apache.org/jira/browse/HBASE-2844
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>            Reporter: Pranav Khaitan
>            Assignee: Pranav Khaitan
>            Priority: Minor
>             Fix For: 0.90.0
>
>         Attachments: RegionCappingV2.patch
>
>
> It may sometimes be advantageous to prevent the number of regions from growing very large. This may happen if the values are large in size even though the number of keyvalues are not large. If the number of regions becomes too large, then it is difficult to accommodate the memstore for each region in memory. In such cases, we either have to flush out memstore to disk or decrease size of each memstore.

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