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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-3970) BlockPoolSliceStorage#doRollback(..) should use BlockPoolSliceStorage instead of DataStorage to read prev version file.
Date Mon, 07 Jan 2013 21:52:13 GMT

     [ https://issues.apache.org/jira/browse/HDFS-3970?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aaron T. Myers updated HDFS-3970:
---------------------------------

       Resolution: Fixed
    Fix Version/s: 2.0.3-alpha
         Assignee: Andrew Wang  (was: Vinay)
     Hadoop Flags: Reviewed
           Status: Resolved  (was: Patch Available)

I've just committed this to trunk and branch-2 based on Todd's +1.

Thanks a lot for the contribution, Vinay and Andrew.
                
> BlockPoolSliceStorage#doRollback(..) should use BlockPoolSliceStorage instead of DataStorage
to read prev version file.
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-3970
>                 URL: https://issues.apache.org/jira/browse/HDFS-3970
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>    Affects Versions: 3.0.0, 2.0.2-alpha
>            Reporter: Vinay
>            Assignee: Andrew Wang
>             Fix For: 2.0.3-alpha
>
>         Attachments: hdfs-3970-1.patch, HDFS-3970.patch
>
>
> {code}    // read attributes out of the VERSION file of previous directory
>     DataStorage prevInfo = new DataStorage();
>     prevInfo.readPreviousVersionProperties(bpSd);{code}
> In the above code snippet BlockPoolSliceStorage instance should be used. other wise rollback
results in 'storageType' property missing which will not be there in initial VERSION file.

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