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Posted to hdfs-dev@hadoop.apache.org by "Kai Sasaki (JIRA)" <ji...@apache.org> on 2016/03/15 09:52:33 UTC

[jira] [Resolved] (HDFS-9975) CLONE - Erasure Coding: update the Balancer/Mover data migration logic

     [ https://issues.apache.org/jira/browse/HDFS-9975?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kai Sasaki resolved HDFS-9975.
------------------------------
    Resolution: Invalid

> 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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