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From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-10500) Some tools OOM when BucketCache is enabled
Date Wed, 12 Feb 2014 17:16:24 GMT

     [ https://issues.apache.org/jira/browse/HBASE-10500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Nick Dimiduk updated HBASE-10500:
---------------------------------

       Resolution: Fixed
    Fix Version/s: 0.99.0
                   0.98.1
                   0.96.2
           Status: Resolved  (was: Patch Available)

Committed to trunk, 0.98, and 0.96. Thanks for the reviews.

> Some tools OOM when BucketCache is enabled
> ------------------------------------------
>
>                 Key: HBASE-10500
>                 URL: https://issues.apache.org/jira/browse/HBASE-10500
>             Project: HBase
>          Issue Type: Bug
>          Components: HFile
>    Affects Versions: 0.98.0, 0.96.0, 0.99.0
>            Reporter: Nick Dimiduk
>            Assignee: Nick Dimiduk
>             Fix For: 0.96.2, 0.98.1, 0.99.0
>
>         Attachments: HBASE-10500.00.patch, HBASE-10500.01.patch
>
>
> Running {{hbck --repair}} or {{LoadIncrementalHFiles}} when BucketCache is enabled in
offheap mode can cause OOM. This is apparently because {{bin/hbase}} does not include $HBASE_REGIONSERVER_OPTS
for these tools. This results in HRegion or HFileReaders initialized with a CacheConfig that
doesn't have the necessary Direct Memory.
> Possible solutions include:
>  - disable blockcache in the config used by hbck when running its repairs
>  - include HBASE_REGIONSERVER_OPTS in the HBaseFSCK startup arguments
> I'm leaning toward the former because it's possible that hbck is run on a host with different
hardware profile as the RS.



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