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Posted to hdfs-dev@hadoop.apache.org by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org> on 2014/01/21 03:41:19 UTC
[jira] [Resolved] (HDFS-5753) Add new NN startup options for
downgrade and rollback using upgrade marker
[ https://issues.apache.org/jira/browse/HDFS-5753?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tsz Wo (Nicholas), SZE resolved HDFS-5753.
------------------------------------------
Resolution: Fixed
Fix Version/s: HDFS-5535 (Rolling upgrades)
Thanks Jing for reviewing the patch.
I have committed this.
> Add new NN startup options for downgrade and rollback using upgrade marker
> ---------------------------------------------------------------------------
>
> Key: HDFS-5753
> URL: https://issues.apache.org/jira/browse/HDFS-5753
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Fix For: HDFS-5535 (Rolling upgrades)
>
> Attachments: h5753_20140120.patch
>
>
> Namenode could be started up with -upgrade / -rollback. The -rollback option will restore the data using the previous directory. New options are needed for downgrade and rollback using the upgrade marker.
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