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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7279) Use netty to implement DatanodeWebHdfsMethods
Date Wed, 05 Nov 2014 18:36:35 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14198811#comment-14198811
] 

Hadoop QA commented on HDFS-7279:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12679588/HDFS-7279.007.patch
  against trunk revision 1831280.

    {color:red}-1 patch{color}.  Trunk compilation may be broken.

Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/8657//console

This message is automatically generated.

> Use netty to implement DatanodeWebHdfsMethods
> ---------------------------------------------
>
>                 Key: HDFS-7279
>                 URL: https://issues.apache.org/jira/browse/HDFS-7279
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode, webhdfs
>            Reporter: Haohui Mai
>            Assignee: Haohui Mai
>         Attachments: HDFS-7279.000.patch, HDFS-7279.001.patch, HDFS-7279.002.patch, HDFS-7279.003.patch,
HDFS-7279.004.patch, HDFS-7279.005.patch, HDFS-7279.006.patch, HDFS-7279.007.patch
>
>
> Currently the DN implements all related webhdfs functionality using jetty. As the current
jetty version the DN used (jetty 6) lacks of fine-grained buffer and connection management,
DN often suffers from long latency and OOM when its webhdfs component is under sustained heavy
load.
> This jira proposes to implement the webhdfs component in DN using netty, which can be
more efficient and allow more finer-grain controls on webhdfs.



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