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Posted to hdfs-dev@hadoop.apache.org by "Jinglun (Jira)" <ji...@apache.org> on 2020/04/22 07:27:00 UTC

[jira] [Created] (HDFS-15294) RBF: Balance data across federation namespaces with DistCp and snapshot diff

Jinglun created HDFS-15294:
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             Summary: RBF: Balance data across federation namespaces with DistCp and snapshot diff
                 Key: HDFS-15294
                 URL: https://issues.apache.org/jira/browse/HDFS-15294
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Jinglun


This jira introduces a new balance command 'fedbalance' that is ran by the administrator. The process is:
1. Use distcp and snapshot diff to sync data between src and dst until they are the same.
2. Update mount table in Router.
3. Delete the src to trash.



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