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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-6034) DN registration should use DataNodeLayoutVersion instead of NameNodeLayoutVersion
Date Sat, 01 Mar 2014 01:17:22 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo (Nicholas), SZE resolved HDFS-6034.
------------------------------------------

       Resolution: Fixed
    Fix Version/s: HDFS-5535 (Rolling upgrades)
     Hadoop Flags: Reviewed

Haohui, thanks a lot for reviewing and testing the patch.

I have committed this.

> DN registration should use DataNodeLayoutVersion instead of NameNodeLayoutVersion
> ---------------------------------------------------------------------------------
>
>                 Key: HDFS-6034
>                 URL: https://issues.apache.org/jira/browse/HDFS-6034
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, ha, hdfs-client, namenode
>    Affects Versions: HDFS-5535 (Rolling upgrades)
>            Reporter: Haohui Mai
>            Assignee: Tsz Wo (Nicholas), SZE
>             Fix For: HDFS-5535 (Rolling upgrades)
>
>         Attachments: h6034_20140228.patch
>
>
> Currently the registrationID is in the form of {{BlockPoolID-NNLayoutVersion}}. When
the NN bumps the layout version during rolling upgrade, the DNs will fail to register with
the new NN and exit, regardless whether the new software version is used.



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