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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5230) Introduce RpcInfo to decouple XDR classes from the RPC API
Date Mon, 30 Sep 2013 17:47:23 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5230?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13782043#comment-13782043
] 

Hadoop QA commented on HDFS-5230:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12605937/HDFS-5230.008.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 2 new or modified
test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:red}-1 javadoc{color}.  The javadoc tool appears to have generated 1 warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-common-project/hadoop-nfs
hadoop-hdfs-project/hadoop-hdfs-nfs.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/5063//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/5063//console

This message is automatically generated.

> Introduce RpcInfo to decouple XDR classes from the RPC API
> ----------------------------------------------------------
>
>                 Key: HDFS-5230
>                 URL: https://issues.apache.org/jira/browse/HDFS-5230
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: nfs
>            Reporter: Haohui Mai
>            Assignee: Haohui Mai
>         Attachments: HDFS-5230.002.patch, HDFS-5230.003.patch, HDFS-5230.004.patch, HDFS-5230.005.patch,
HDFS-5230.006.patch, HDFS-5230.007.patch, HDFS-5230.008.patch
>
>
> The XDR class is one fundamental aspect in the current implementation of NFS server.
While the client might potentially have a higher level APIs, it also requires redundant copying
since the upstream clients have insufficient information.
> This JIRA introduces a new class, RpcInfo, which (1) decouples XDR from the APIs, turning
it into a utility class, and (2) exposes ChannelBuffer directly to the client in order to
open the opportunity for avoid copying.



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