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Date: Thu, 5 Nov 2015 21:17:27 +0000 (UTC)
From: "Arpit Agarwal (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12910799.1446748853000.167316.1446758247844@Atlassian.JIRA>
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Subject: [jira] [Commented] (HDFS-9384) TestWebHdfsContentLength
 intermittently hangs and fails due to TCP conversation mismatch between
 client and server.
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    [ https://issues.apache.org/jira/browse/HDFS-9384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14992491#comment-14992491 ] 

Arpit Agarwal commented on HDFS-9384:
-------------------------------------

And +1 from Jenkins too! I can't recall the last time I saw that.

> TestWebHdfsContentLength intermittently hangs and fails due to TCP conversation mismatch between client and server.
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-9384
>                 URL: https://issues.apache.org/jira/browse/HDFS-9384
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: test
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>            Priority: Minor
>         Attachments: HDFS-9384.001.patch, HDFS-9384.002.patch
>
>
> {{TestWebHdfsContentLength}} runs a simple hand-coded HTTP server in a background thread to simulate some WebHDFS server responses.  In some environments (notably Windows), I have observed that the test can hang and fail intermittently.  The root cause is that the server fails to fully consume the client's input.  This causes a mismatch in the TCP conversation state, and ultimately the client side hangs, then aborts after the 60-second socket timeout.


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