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https://issues.apache.org/jira/browse/HADOOP-10044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13793409#comment-13793409
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Steve Loughran commented on HADOOP-10044:
-----------------------------------------

+1 to a javadoc patch, but as someone who has recently done some RPC work, I 
think we need something that gives an overall view of how to implement RPC 
services. 

Particular troublespots for me
* basics of registering a service, client proxy
* why turning Simple auth on is a good feature during dev
* moving to protobuf as a payload (why, how)
* moving to protbuf RPC with the various relay proxies. Here the why really has 
to come before the how, as having done this once I think you really need a good 
reason to invest the effort.
* security, delegation tokens, auth: basic services, then under YARN
* failure modes, testing

YARN is going to enable many more people to write distributed apps, which means 
more people trying to understand the RPC mechanism

> Improve the javadoc of rpc code
> -------------------------------
>
>                 Key: HADOOP-10044
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10044
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Sanjay Radia
>            Assignee: Sanjay Radia
>            Priority: Minor
>         Attachments: hadoop-10044.patch
>
>




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