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https://issues.apache.org/jira/browse/HDFS-7279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14182277#comment-14182277
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Fengdong Yu commented on HDFS-7279:
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That is great,
> 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
>
>
> 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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