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https://issues.apache.org/jira/browse/HDFS-3103?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kihwal Lee reopened HDFS-3103:
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This is still valid. Let's target for 3.0.0 instead of resolving it.
> HA NN should be able to handle some cases of storage dir recovery on start
> --------------------------------------------------------------------------
>
> Key: HDFS-3103
> URL: https://issues.apache.org/jira/browse/HDFS-3103
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: ha, namenode
> Affects Versions: 0.24.0, 0.23.3
> Reporter: Todd Lipcon
>
> As a shortcut in developing HA, we elected not to deal with the case of
> storage directory recovery while HA is enabled. But there are many cases
> where we can and should handle it. For example, if the user configures two
> local dirs and one shared dir, but one of the local dirs is empty at startup,
> we should be able to re-format the empty dir from the other local dir.
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