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https://issues.apache.org/jira/browse/HDFS-2941?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aaron T. Myers updated HDFS-2941:
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Attachment: HDFS-2941.patch
Here's a patch which addresses the issue. In the course of implementing this
patch, I also noticed that the help text for setBalancerBandwidth in dfsadmin
was inadvertently left out in one place. I've taken the liberty of adding that
back in this patch.
In addition to the above automated tests, I also tested this change manually
with HA enabled, by alternately getting the fsimage with each NN active.
> Add an administrative command to download a copy of the fsimage from the NN
> ---------------------------------------------------------------------------
>
> Key: HDFS-2941
> URL: https://issues.apache.org/jira/browse/HDFS-2941
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: hdfs client, name-node
> Affects Versions: 0.24.0
> Reporter: Aaron T. Myers
> Assignee: Aaron T. Myers
> Attachments: HDFS-2941.patch
>
>
> It would be nice to be able to download a copy of the fsimage from the NN,
> e.g. for backup purposes.
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