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https://issues.apache.org/jira/browse/HDFS-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16357575#comment-16357575
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Íñigo Goiri commented on HDFS-13123:
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Thanks [~ywskycn] for the doc. Right now we are leveraging DistCp for this but
I remember there was some conversation about other options.
[~chris.douglas], I remember you mentioned doing hard linking across block
pools as one option and even tiered storage; any thoughts?
In any case, I think we should start with DistCp but keep in mind the option to
leverage other mechanisms.
> RBF: Add a balancer tool to move data across subsluter
> -------------------------------------------------------
>
> Key: HDFS-13123
> URL: https://issues.apache.org/jira/browse/HDFS-13123
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Wei Yan
> Assignee: Wei Yan
> Priority: Major
> Attachments: HDFS Router-Based Federation Rebalancer.pdf
>
>
> Follow the discussion in HDFS-12615. This Jira is to track effort for
> building a rebalancer tool, used by router-based federation to move data
> among subclusters.
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