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https://issues.apache.org/jira/browse/HDFS-13272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16454701#comment-16454701
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Erik Krogen commented on HDFS-13272:
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Ran all HDFS unit tests locally; I attached the output with the patch applied (
[^testout-HDFS-13272.001] ) and without ( [^testout-branch-2] ).
There were no new failures with the patch applied and it took about the same
time to run all of them. [Checkstyle
diff|https://builds.apache.org/job/PreCommit-HDFS-Build/24054/artifact/out/diff-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt]
looks good (empty). Ping [~chris.douglas]
> DataNodeHttpServer to have configurable HttpServer2 threads
> -----------------------------------------------------------
>
> Key: HDFS-13272
> URL: https://issues.apache.org/jira/browse/HDFS-13272
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Reporter: Erik Krogen
> Assignee: Erik Krogen
> Priority: Major
> Attachments: HDFS-13272-branch-2.000.patch,
> HDFS-13272-branch-2.001.patch, testout-HDFS-13272.001, testout-branch-2
>
>
> In HDFS-7279, the Jetty server on the DataNode was hard-coded to use 10
> threads. In addition to the possibility of this being too few threads, it is
> much higher than necessary in resource constrained environments such as
> MiniDFSCluster. To avoid compatibility issues, rather than using
> {{HttpServer2#HTTP_MAX_THREADS}} directly, we can introduce a new
> configuration for the DataNode's thread pool size.
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