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https://issues.apache.org/jira/browse/HDFS-6700?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz Wo Nicholas Sze updated HDFS-6700:
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    Component/s: namenode

> BlockPlacementPolicy shoud choose storage but not datanode for deletion
> -----------------------------------------------------------------------
>
>                 Key: HDFS-6700
>                 URL: https://issues.apache.org/jira/browse/HDFS-6700
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Tsz Wo Nicholas Sze
>            Priority: Minor
>         Attachments: h6700_20140717.patch
>
>
> HDFS-2832 changed datanode storage model from a single storage, which may 
> correspond to multiple physical storage medias, to a collection of storages 
> with each storage corresponding to a physical storage media.
> BlockPlacementPolicy.chooseReplicaToDelete still chooses replica in term of 
> DatanodeDescriptor but not DatanodeStorageInfo.



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