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From "Nicolas Liochon (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-9422) AsyncProcess and HTable will submit the same mutation twice if there is an error locating region.
Date Tue, 03 Sep 2013 21:21:52 GMT

     [ https://issues.apache.org/jira/browse/HBASE-9422?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Nicolas Liochon updated HBASE-9422:
-----------------------------------

    Assignee: Nicolas Liochon
    
> AsyncProcess and HTable will submit the same mutation twice if there is an error locating
region.
> -------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-9422
>                 URL: https://issues.apache.org/jira/browse/HBASE-9422
>             Project: HBase
>          Issue Type: Bug
>          Components: Client
>    Affects Versions: 0.98.0, 0.96.0
>            Reporter: Elliott Clark
>            Assignee: Nicolas Liochon
>            Priority: Minor
>
> HTable#backgroundFlushCommits calls AsyncProcess#submit
> AsyncProcess#submit tries to get the region location but doesn't remove the mutation
from the write buffer.  If it doesn't get the location the mutation is added to the error
list.
> then HTable#backgroundFlushCommits takes all mutations from the error list and adds them
to the write buffer list.
> This should result in two references to the same mutation being in the write buffer list
twice.  It's not a big deal as two of the same mutation being executed should be ideponent
(unless the two puts are executed across ms boundaries.)

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