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From "Tsz Wo Nicholas Sze (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HDFS-6685) Archival Storage: Update Balancer to preserve storage type of replicas
Date Wed, 23 Jul 2014 02:17:39 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6685?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo Nicholas Sze reassigned HDFS-6685:
-----------------------------------------

    Assignee: Tsz Wo Nicholas Sze

> Archival Storage: Update Balancer to preserve storage type of replicas
> ----------------------------------------------------------------------
>
>                 Key: HDFS-6685
>                 URL: https://issues.apache.org/jira/browse/HDFS-6685
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: balancer
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Tsz Wo Nicholas Sze
>
> In order to maintain storage policy requirement, Balancer always moves replicas from
a storage with any type to another storage with the same type, i.e. it preserves storage type
of replicas.  In this way, Balancer does not require to know storage policy information.



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