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https://issues.apache.org/jira/browse/HDFS-2746?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13179659#comment-13179659
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Aaron T. Myers commented on HDFS-2746:
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bq. To be clear, the specified directory should be local to the NameNode?
Yes indeed, that was my thinking. Sorry for being unclear.
> Add a parameter to `hdfs dfsadmin -saveNamespace' to allow an arbitrary
> storage dir
> -----------------------------------------------------------------------------------
>
> Key: HDFS-2746
> URL: https://issues.apache.org/jira/browse/HDFS-2746
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: name-node
> Affects Versions: 0.24.0
> Reporter: Aaron T. Myers
>
> Presently `hdfs dfsadmin -saveNamespace' will attempt to save a snapshot of
> the file system metadata state into all configured storage dirs. It would be
> nice if we could optionally specify an arbitrary local dir to save the FS
> state into, instead of the configured storage dirs.
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