accumulo-notifications mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Eric Newton (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (ACCUMULO-1281) flush the METADATA table after GC
Date Wed, 17 Apr 2013 15:13:16 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-1281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eric Newton resolved ACCUMULO-1281.
-----------------------------------

    Resolution: Fixed
    
> flush the METADATA table after GC
> ---------------------------------
>
>                 Key: ACCUMULO-1281
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1281
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: gc
>            Reporter: Eric Newton
>            Assignee: Eric Newton
>            Priority: Trivial
>             Fix For: 1.5.0
>
>
> The METADATA table is often small, with many in-memory writes.  Because it is small,
it does not normally get flushed, which will prune data with the versioning/delete iterators.
 Over time, the many in-memory versions can cause poor performance.
> The file garbage collector (gc) will make lots of updates as it runs.  That would be
a perfect time to flush the table and prune the versions.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message