[jira] [Work started] (HDFS-5178) DataTransferProtocol changes for supporting mutiple storages per DN

["Junping Du (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-5178?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on HDFS-5178 started by Junping Du.

> DataTransferProtocol changes for supporting mutiple storages per DN
> -------------------------------------------------------------------
>
>                 Key: HDFS-5178
>                 URL: https://issues.apache.org/jira/browse/HDFS-5178
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode
>    Affects Versions: Heterogeneous Storage (HDFS-2832)
>            Reporter: Junping Du
>            Assignee: Junping Du
>         Attachments: HDFS-5178-v1.patch, HDFS-5178-v2.patch
>
>
> Per discussion in HDFS-5157, DataTransferProtocol should be updated to add StorageID info in some methods, i.e. writeBlock(), replaceBlock(), etc.
> After that, BlockReceiver (sender also) and receiveBlock can operate on target storage with new parameter.



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