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List:       hadoop-dev
Subject:    Re: CDH3b3 deadlock in jobtracker
From:       Todd Lipcon <todd () cloudera ! com>
Date:       2010-12-16 17:59:29
Message-ID: AANLkTi=aTUeXw8oWZLAan5Dr==u2vf4oO--uTeHzWJP0 () mail ! gmail ! com
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Replying back on common-dev list because I've determined this issue
exists upstream. Configuration.writeXml will deadlock if the XML
output is larger than one block (or I think if pipeline recovery
happens mid-write)

I filed HDFS-1542.

-Todd

On Thu, Dec 16, 2010 at 8:59 AM, Luke Forehand
<luke.forehand@networkedinsights.com> wrote:
> We have upgraded from CDH3b2 to CDH3b3 recently, and our job tracker process now
> consistently deadlocks when running a particular map reduce job that worked with
> the previous version.
>
> Here is a stacktrace showing the deadlocked threads.
>
> http://pastebin.com/AMEig0Z0
>
> Any ideas?
>
> -Luke Forehand
>
>
>



-- 
Todd Lipcon
Software Engineer, Cloudera
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