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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5526) Datanode cannot roll back to previous layout version
Date Mon, 25 Nov 2013 15:41:37 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5526?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kihwal Lee updated HDFS-5526:
-----------------------------

    Fix Version/s: 0.23.10
                   2.3.0
                   3.0.0

> Datanode cannot roll back to previous layout version
> ----------------------------------------------------
>
>                 Key: HDFS-5526
>                 URL: https://issues.apache.org/jira/browse/HDFS-5526
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Kihwal Lee
>            Priority: Blocker
>             Fix For: 3.0.0, 2.3.0, 0.23.10
>
>         Attachments: HDFS-5526.patch, HDFS-5526.patch
>
>
> Current trunk layout version is -48.
> Hadoop v2.2.0 layout version is -47.
> If a cluster is upgraded from v2.2.0 (-47) to trunk (-48), the datanodes cannot start
with -rollback.  It will fail with IncorrectVersionException.



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