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From "Konstantin Shvachko (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2498) TestParallelRead times out consistently on Jenkins
Date Wed, 23 Nov 2011 22:24:39 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13156343#comment-13156343
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Konstantin Shvachko commented on HDFS-2498:
-------------------------------------------

You are right, Todd. I'll incorporate.
I see that even when TestParallelRead succeeds (rather rarely) on Jenkins its running time
is around 14 minutes. While on my linux box it completes in less than 20 seconds.
And in the log attached I see
{code}
[junit] 2011-10-24 19:58:35,474 INFO  hdfs.TestParallelRead (TestParallelRead.java:runParallelRead(269))
- === Report: 16 threads read 941298 KB (across 1 file(s)) in 550.051s; average 1711.292225629987
KB/s
{code}
So the second runParallelRead() is actually running more than 9 minutes (550.051s). Again,
on my box it completes in only 2-3 seconds.

Is it possible that because ReadWorker,run() does not catch Error (only Exception) the thread
cannot complete?
                
> TestParallelRead times out consistently on Jenkins
> --------------------------------------------------
>
>                 Key: HDFS-2498
>                 URL: https://issues.apache.org/jira/browse/HDFS-2498
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 0.22.0
>            Reporter: Konstantin Shvachko
>            Assignee: Jakob Homan
>            Priority: Blocker
>             Fix For: 0.22.0
>
>         Attachments: TestParallelRead.txt
>
>
> During last several Jenkins builds TestParallelRead consistently fails. See Hadoop-Hdfs-22-branch
for logs.

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