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https://issues.apache.org/jira/browse/HDFS-13248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16808901#comment-16808901
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Ayush Saxena commented on HDFS-13248:
-------------------------------------
Thanx [~hexiaoqiao] [~elgoiri]
* Agreed changing protocol shall fetch us the best results.(Do we need to do
with scenarios like HBASE-22103? Due to change in protocol)
* Changing addBlock(..) I guess shall solve the write problem for us.
* can we handle the getBlockLocations() part the way [~elgoiri] suggested in
case of favored node? If that works we may save changing this.
* Saw this getAdditionalDatanode() having client name parameter in(need to dig
in more) Wouldn't that work for us?
> RBF: Namenode need to choose block location for the client
> ----------------------------------------------------------
>
> Key: HDFS-13248
> URL: https://issues.apache.org/jira/browse/HDFS-13248
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Weiwei Wu
> Assignee: Íñigo Goiri
> Priority: Major
> Attachments: HDFS-13248.000.patch, HDFS-13248.001.patch,
> HDFS-13248.002.patch, HDFS-13248.003.patch, HDFS-13248.004.patch,
> HDFS-13248.005.patch, clientMachine-call-path.jpeg, debug-info-1.jpeg,
> debug-info-2.jpeg
>
>
> When execute a put operation via router, the NameNode will choose block
> location for the router, not for the real client. This will affect the file's
> locality.
> I think on both NameNode and Router, we should add a new addBlock method, or
> add a parameter for the current addBlock method, to pass the real client
> information.
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