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Posted to hdfs-issues@hadoop.apache.org by "Junping Du (JIRA)" <ji...@apache.org> on 2013/09/08 04:54:53 UTC

[jira] [Assigned] (HDFS-5157) Datanode should allow choosing the target storage

     [ https://issues.apache.org/jira/browse/HDFS-5157?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Junping Du reassigned HDFS-5157:
--------------------------------

    Assignee: Junping Du
    
> Datanode should allow choosing the target storage
> -------------------------------------------------
>
>                 Key: HDFS-5157
>                 URL: https://issues.apache.org/jira/browse/HDFS-5157
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode
>    Affects Versions: Heterogeneous Storage (HDFS-2832)
>            Reporter: Arpit Agarwal
>            Assignee: Junping Du
>
> Datanode should allow should choosing a target Storage or target Storage Type as a parameter when creating a new block. Currently there are two ways in which the target volume is chosen (via {{VolumeChoosingPolicy#chooseVolume}}.
> # AvailableSpaceVolumeChoosingPolicy
> # RoundRobinVolumeChoosingPolicy
> BlockReceiver and receiveBlock should also accept a new parameter for target storage or storage type.

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