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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7279) Use netty to implement DatanodeWebHdfsMethods
Date Sat, 15 Nov 2014 12:32:35 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14213572#comment-14213572
] 

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/12681719/HDFS-7279.013.patch
  against trunk revision 9b86066.

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

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

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

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

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

    {color:red}-1 findbugs{color}.  The patch appears to introduce 1 new Findbugs (version
2.0.3) warnings.

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

    {color:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-common-project/hadoop-common
hadoop-hdfs-project/hadoop-hdfs:

                  org.apache.hadoop.fs.contract.hdfs.TestHDFSContractDelete
                  org.apache.hadoop.hdfs.server.namenode.ha.TestStandbyBlockManagement
                  org.apache.hadoop.hdfs.TestFileCreationClient

                                      The test build failed in hadoop-common-project/hadoop-common


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

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/8753//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HDFS-Build/8753//artifact/patchprocess/newPatchFindbugsWarningshadoop-hdfs.html
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/8753//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, HDFS-7279.008.patch,
HDFS-7279.009.patch, HDFS-7279.010.patch, HDFS-7279.011.patch, HDFS-7279.012.patch, HDFS-7279.013.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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