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From "John Zhuge (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14560) Make HttpServer2 backlog size configurable
Date Thu, 17 Aug 2017 06:21:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16129995#comment-16129995
] 

John Zhuge commented on HADOOP-14560:
-------------------------------------

Passed test-patch locally, all green:
{noformat}
$ dev-support/bin/test-patch ~/patches/HADOOP-14560.002.patch

+1 overall

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| Vote |      Subsystem |  Runtime   | Comment
============================================================================
|   0  |      findbugs  |   0m  1s   | Findbugs executables are not available.
|  +1  |       @author  |   0m  0s   | The patch does not contain any @author
|      |                |            | tags.
|  +1  |    test4tests  |   0m  0s   | The patch appears to include 1 new or
|      |                |            | modified test files.
|  +1  |    mvninstall  |  11m 25s   | trunk passed
|  +1  |       compile  |  11m 33s   | trunk passed
|  +1  |    checkstyle  |   0m 28s   | trunk passed
|  +1  |       mvnsite  |   1m  2s   | trunk passed
|  +1  |    mvneclipse  |   0m 14s   | trunk passed
|  +1  |       javadoc  |   0m 41s   | trunk passed
|  +1  |    mvninstall  |   0m 32s   | the patch passed
|  +1  |       compile  |   8m  3s   | the patch passed
|  +1  |         javac  |   8m  3s   | the patch passed
|  +1  |    checkstyle  |   0m 26s   | the patch passed
|  +1  |       mvnsite  |   1m  3s   | the patch passed
|  +1  |    mvneclipse  |   0m 13s   | the patch passed
|  +1  |    whitespace  |   0m  0s   | The patch has no whitespace issues.
|  +1  |       javadoc  |   0m 40s   | the patch passed
|  +1  |    asflicense  |   0m 22s   | The patch does not generate ASF License
|      |                |            | warnings.
|      |                |  37m 20s   |
{noformat}

> Make HttpServer2 backlog size configurable
> ------------------------------------------
>
>                 Key: HADOOP-14560
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14560
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: common
>            Reporter: Alexander Krasheninnikov
>            Assignee: Alexander Krasheninnikov
>              Labels: webhdfs
>         Attachments: HADOOP-14560.002.patch
>
>
> While operating WebHDFS at Badoo, we've faced issue, that hardcoded size of socket backlog
(128) is not enough for our purposes.
> When performing ~600 concurrent requests, clients receive "Connection refused" error.
> We are proposing patch to make this backlog size configurable.



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