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https://issues.apache.org/jira/browse/HDFS-3393?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Suresh Srinivas updated HDFS-3393:
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Affects Version/s: (was: 3.0.0)
(was: 2.0.0)
Setting the affected version to 1.0, since this problem is fixed in releases
later than 0.22.
> Rollback on newer release must not be allowed if the layout version in the
> snapshot is for older release.
> ---------------------------------------------------------------------------------------------------------
>
> Key: HDFS-3393
> URL: https://issues.apache.org/jira/browse/HDFS-3393
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: name-node
> Affects Versions: 1.0.0
> Reporter: Suresh Srinivas
>
> After upgrading to a new release, the procedure to rollback to older release
> is to start the namenode in older release with -rollback option.
> As reported in HADOOP-8371, the rollback was allowed on the newer release.
> During rollback, namenode must allow rollback only if the layout version of
> the namenode matches that of the layout version in the snapshot that the
> namenode is rolling back to.
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