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Date:      Sat, 21 Jun 2014 15:41:19 +0400
From:      Dmitry Sivachenko <trtrmitya@gmail.com>
To:        Ronald Klop <ronald-lists@klop.ws>
Cc:        freebsd-java@freebsd.org
Subject:   Re: JVM BUG(s) - Hadoop's threads hanging
Message-ID:  <C040C17A-4FD4-471A-9FA7-E43C7BF657CC@gmail.com>
In-Reply-To: <op.xhsuv5pwkndu52@82-171-231-144.ip.telfort.nl>
References:  <E14F86A5-C7FE-49B5-8A11-F5237C557AE2@gmail.com> <op.xhjxxemtkndu52@ronaldradial.radialsg.local> <1B53E600-B745-459E-98F8-7CEF9FDE77CC@gmail.com> <601C3B4A-8002-4B9C-9B11-01DF32750021@gmail.com> <op.xhsuv5pwkndu52@82-171-231-144.ip.telfort.nl>

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On 21 =D0=B8=D1=8E=D0=BD=D1=8F 2014 =D0=B3., at 14:17, Ronald Klop =
<ronald-lists@klop.ws> wrote:
>=20
>=20
> Mmm, that makes it more though to solve. It would still be nice to =
know if running Hadoop on another OS has the same problem. That gives a =
pointer where to look.
> And it would be nice to reduce your setup to a reproducible testcase, =
so people can replay it. Otherwise it is just a lot of guessing from my =
side what is happening internally in the application. I don't know how =
easy it is to create that.
> Any news on the mailing-lists of Hadoop?
>=20

No news from Hadoop mailing-list.
I will have test results with Linux soon (next week).

If anyone want to dig into it, I can send my config files for hadoop =
(almost no special tuning) and a command to run hadoop's bundled =
TeraSort benchmark.
I have a cluster with 40 machines (1 for namenode, 1 for =
secondarynamenode and the rest are task nodes), but I am sure you don't =
need as much h/w to reproduce this.




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