JVM BUG(s) - Hadoop's threads hanging

[Dmitry Sivachenko]

On 21 июня 2014 г., at 14:17, Ronald Klop <ronald-lists at klop.ws> wrote:
> 
> 
> 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?
> 

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.