topic Re: Exception in thread "main" java.lang.OutOfMemoryError: unable to create new native thread in Operating System - HP-UX

Exception in thread "main" java.lang.OutOfMemoryError: unable to create new native thread

galea_1 — Mon, 08 Dec 2003 06:10:54 GMT

Hi,

I have the following error when trying to launch two instance of the same java written software on my server ( B.11.11 U 9000/800, 2 processors, 2GB of RAM).

I joined the kernel parameters.

Thanks

Re: Exception in thread "main" java.lang.OutOfMemoryError: unable to create new native thread

Joseph Loo — Tue, 09 Dec 2003 00:03:59 GMT

Hi,

not sure if this helps.

Have u try hpjmeter? it is free download and helps to detect performance bottleneck.

or hpjconfig? also free and allows you to tune your HP-UX 11.x and 11i PA-RISC for specfic types of Java applications.

the url:
http://www.hp.com/products1/unix/java/

regards.

Re: Exception in thread "main" java.lang.OutOfMemoryError: unable to create new native thread

Vijaya Kumar_3 — Tue, 09 Dec 2003 00:13:17 GMT

You may need to increase this kernel parameter

max_thread_proc

Btw, post your sysdef output.

-Vijay

Re: Exception in thread "main" java.lang.OutOfMemoryError: unable to create new native thread

Joseph Loo — Tue, 09 Dec 2003 00:31:39 GMT

fail to mention that hpjconfig (which requires you to run on a X display server) would assess the following kernel parameters and recommend the best value. the parameters are:
1) max_thread_proc,
2) maxdsiz,
3) maxfiles,
4) maxfiles_lim,
5) maxusers,
6) ncallout,
7) nfile,
8) nkthread and most definitely
9) nproc

looking at nproc (800), it seems small.

by the way, what is the application you are trying to run?