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https://issues.apache.org/jira/browse/HDFS-6034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz Wo (Nicholas), SZE resolved HDFS-6034.
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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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