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https://issues.apache.org/jira/browse/HDFS-9975?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinayakumar B deleted HDFS-9975:
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> CLONE - Erasure Coding: update the Balancer/Mover data migration logic
> ----------------------------------------------------------------------
>
> Key: HDFS-9975
> URL: https://issues.apache.org/jira/browse/HDFS-9975
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: dragon
> Assignee: Walter Su
> Labels: HDFS-7285
> Fix For: HDFS-7285
>
>
> Currently the Balancer/Mover only considers the distribution of replicas of
> the same block during data migration: the migration cannot decrease the
> number of racks. With EC the Balancer and Mover should also take into account
> the distribution of blocks belonging to the same block group.
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