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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-3009) ICV-style update of Memstore for single-qualifier and frequent puts
Date Thu, 16 Sep 2010 23:35:38 GMT

     [ https://issues.apache.org/jira/browse/HBASE-3009?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jean-Daniel Cryans updated HBASE-3009:

    Attachment: HBASE-3009.patch

Patch that adds the desired behavior. It requires that the family is configured to only keep
one version and that the Put is done only one cell. It's kinda hacky.

> ICV-style update of Memstore for single-qualifier and frequent puts
> -------------------------------------------------------------------
>                 Key: HBASE-3009
>                 URL: https://issues.apache.org/jira/browse/HBASE-3009
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Jean-Daniel Cryans
>            Priority: Trivial
>         Attachments: HBASE-3009.patch
> We had an internal need for a method to update a single cell thousands of times per second
without having a "versions explosion" problem, and found that the code can be somewhat easily
modified for that by reusing Store.updateColumnValue and making it accept byte[]. I'm putting
the patch here in case someone else finds it useful, and maybe it can eventually make its
way into the source.

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