[
https://issues.apache.org/jira/browse/HDFS-2060?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13100466#comment-13100466
]
Doug Cutting commented on HDFS-2060:
------------------------------------
I agree that the MR2-style protocol wrappers are a good pattern, but I'm not
convinced they're required before this could be committed. The current
Writable-based RPC implementation is not wrapped, nor does it provide version
interoperability. This patch addresses version-interoperability but not
wrapping. Wrapping seems like it might be handled as an independent issue,
especially if version-interoperability is a priority in the near term.
> DFS client RPCs using protobufs
> -------------------------------
>
> Key: HDFS-2060
> URL: https://issues.apache.org/jira/browse/HDFS-2060
> Project: Hadoop HDFS
> Issue Type: New Feature
> Affects Versions: 0.23.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Attachments: hdfs-2060-getblocklocations.txt
>
>
> The most important place for wire-compatibility in DFS is between clients and
> the cluster, since lockstep upgrade is very difficult and a single client may
> want to talk to multiple server versions. So, I'd like to focus this JIRA on
> making the RPCs between the DFS client and the NN/DNs wire-compatible using
> protocol buffer based serialization.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
