Date: Sat, 21 Jun 2014 12:17:55 +0200 From: "Ronald Klop" <ronald-lists@klop.ws> To: freebsd-java@freebsd.org Subject: Re: JVM BUG(s) - Hadoop's threads hanging Message-ID: <op.xhsuv5pwkndu52@82-171-231-144.ip.telfort.nl> In-Reply-To: <601C3B4A-8002-4B9C-9B11-01DF32750021@gmail.com> 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>
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On Wed, 18 Jun 2014 17:10:08 +0200, Dmitry Sivachenko <trtrmitya@gmail.com> wrote: > > On 17 июня 2014 г., at 14:04, Dmitry Sivachenko <trtrmitya@gmail.com> > wrote: > >> >> On 16 июня 2014 г., at 18:45, Ronald Klop <ronald-lists@klop.ws> wrote: >> >>> >>> Hi, >>> >>> From your information it is hard to say something about it. The bug >>> can be in FreeBSD, OpenJDK (the Oracle part or in the BSD port part), >>> in Hadoop or in your own code running on top of Hadoop. >>> >>> My first idea would be to eliminate some of the possibilities. >>> - Run a Linux machine with the same versions of the software. >>> - Try FreeBSD 9-stable. >> >> I will try at least FreeBSD-9 soon (never used Linux so it will take >> more time and not so relevant because I want to continue to use >> FreeBSD, not just move to Linux) >> > > > Okay, I setup a similar configuration based on FreeBSD-9/stable. > > I see the same problems with both openjdk6 and openjdk7 described in my > previous e-mail. 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? Regards, Ronald.help
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