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Posted to issues@hbase.apache.org by "Mikhail Antonov (JIRA)" <ji...@apache.org> on 2015/07/03 10:57:05 UTC

[jira] [Updated] (HBASE-12016) Reduce number of versions in Meta table. Make it configurable

     [ https://issues.apache.org/jira/browse/HBASE-12016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mikhail Antonov updated HBASE-12016:
------------------------------------
    Fix Version/s: 1.0.0

> Reduce number of versions in Meta table. Make it configurable
> -------------------------------------------------------------
>
>                 Key: HBASE-12016
>                 URL: https://issues.apache.org/jira/browse/HBASE-12016
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 2.0.0
>            Reporter: Andrey Stepachev
>            Assignee: Andrey Stepachev
>            Priority: Minor
>             Fix For: 1.0.0, 2.0.0
>
>         Attachments: HBASE-12016.patch, HBASE-12016.patch, HBASE-12016.patch, HBASE-12016.patch, HBASE-12016.patch, HBASE-12016.patch, HBASE-12016.patch
>
>
> Currently meta keeps up to 10 versions of each KV. 
> For big metas it leads to substantial memory overhead and scan slowdowns.
> (see https://issues.apache.org/jira/browse/HBASE-11165 )
> Need to keep reasonable number of versions (suggested value is 3). 
> Number of versions configurable via parameter: hbase.meta.versions



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