hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-10660) MR over snapshots can OOM when alternative blockcache is enabled
Date Sat, 08 Mar 2014 00:38:44 GMT

     [ https://issues.apache.org/jira/browse/HBASE-10660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Nick Dimiduk resolved HBASE-10660.

      Resolution: Fixed
    Hadoop Flags: Reviewed

Committed to 0.98 and trunk. We can backport to 0.96 and 0.94 when the time comes.

> MR over snapshots can OOM when alternative blockcache is enabled
> ----------------------------------------------------------------
>                 Key: HBASE-10660
>                 URL: https://issues.apache.org/jira/browse/HBASE-10660
>             Project: HBase
>          Issue Type: Bug
>          Components: mapreduce
>    Affects Versions: 0.98.0, 0.99.0
>            Reporter: Nick Dimiduk
>            Assignee: Nick Dimiduk
>         Attachments: HBASE-10660.00.patch, HBASE-10660.01.patch, HBASE-10660.02.patch,
> Running {{IntegrationTestTableSnapshotInputFormat}} with the {{BucketCache}} enabled
results in OOM. The map task is running a sequential scan over the region region it opened,
so probably it's not benefiting much from a blockcache. Just disable blockcache entirely for
these scans because it's likely the cache config detected is designed for a RS running on
a different class of hardware than that running the map task.

This message was sent by Atlassian JIRA

View raw message