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Date: Wed, 13 Jul 2016 18:37:20 +0000 (UTC)
From: "Akira Ajisaka (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HADOOP-13351) TestDFSClientSocketSize buffer
 size tests are flaky
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archived-at: Wed, 13 Jul 2016 18:37:23 -0000


    [ https://issues.apache.org/jira/browse/HADOOP-13351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15375510#comment-15375510 ] 

Akira Ajisaka commented on HADOOP-13351:
----------------------------------------

In addition to Mingliang's comment, would you fix the checkstyle warnings?

> TestDFSClientSocketSize buffer size tests are flaky
> ---------------------------------------------------
>
>                 Key: HADOOP-13351
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13351
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.8.0, 3.0.0-alpha1
>            Reporter: Aaron Fabbri
>            Assignee: Aaron Fabbri
>         Attachments: HADOOP-13551.001.patch, HADOOP-13551.002.patch, HADOOP-13551.003.patch
>
>
> {{TestDFSClientSocketSize}} has two tests that assert that a value that was set via {{java.net.Socket#setSendBufferSize}} is equal to the value subsequently returned by {{java.net.Socket#getSendBufferSize}}.
> These tests are flaky when we run them. The occasionally fail.
> This is expected behavior, actually, because {{Socket#setSendBufferSize()}}[is only a hint|https://docs.oracle.com/javase/7/docs/api/java/net/Socket.html#setSendBufferSize(int)].  (Similar to how the underlying libc {{setsockopt(SO_SNDBUF)}} works).


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