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https://issues.apache.org/jira/browse/HDFS-7279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14216276#comment-14216276
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Hudson commented on HDFS-7279:
------------------------------
FAILURE: Integrated in Hadoop-Mapreduce-trunk #1961 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1961/])
HDFS-7279. Use netty to implement DatanodeWebHdfsMethods. Contributed by Haohui
Mai. (wheat9: rev bf8e4332cb4c33d0287ae6ecca61b335402ac1c4)
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/web/webhdfs/HdfsWriter.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/web/resources/OpenEntity.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/protocol/DatanodeRegistration.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/TestWebHdfsFileSystemContract.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/resources/ShortParam.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/resources/IntegerParam.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/resources/LongParam.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/web/webhdfs/WebHdfsHandler.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/web/URLDispatcher.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/web/SimpleHttpProxyHandler.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/web/webhdfs/ParameterParser.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/web/webhdfs/ExceptionHandler.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/http/HttpServer2.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/web/webhdfs/DataNodeUGIProvider.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/common/JspHelper.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/SecureDataNodeStarter.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/web/DatanodeHttpServer.java
> 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
> Fix For: 2.7.0
>
> 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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