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https://issues.apache.org/jira/browse/HDFS-5178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13771445#comment-13771445
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Arpit Agarwal commented on HDFS-5178:
-------------------------------------
Alternatively you can take a look at the preliminary patch I attached to
HDFS-4988 to check for potential conflicts. :-)
It will need to be rebased after Nicholas's checkin for HDFS-4990. I should
have the rebased patch up by tomorrow.
> 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
>
> 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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