jboss on HPUX 11i native thread problems

[leetatyi]

I encounter the following problem when I run JBOSS 2.4.3 on HPUX 11i with 2G ram


[J2EE Deployer Default] Starting mchAd.jar failed!
[Default] java.lang.OutOfMemoryError: unable to create new native thread
[Default] at java.lang.Thread.start(Native Method)
[Default]
[Default] at org.jboss.util.WorkerQueue.start(WorkerQueue.java:53)
[Default]
[Default] at org.jboss.ejb.plugins.AbstractInstanceCache.start(AbstractInstanceCache.java:360)
[Default]
[Default] at org.jboss.ejb.StatefulSessionContainer.start(StatefulSessionContainer.java:231)

Any body knows what to do?
any kernel tuning required?

[ajitsingh]

Get Jconfig to report on kernel params.

http://www.hp.com/products1/unix/java/java2/hpjconfig/index.html


Jmeter can analyse your applications:

http://www.hp.com/products1/unix/java/hpjmeter/index.html



The Java perf page gives a generic sam kernel tunable set.

http://www.devresource.hp.com/JavaATC/JavaPerfTune/index.html
and instructions how to install it:


Java Generic Server

maxusers 400
max_thread_proc maxusers*3
maxfiles 2048
maxfiles_lim 2048
ncallout 2*((((nproc*7)/4)+16)*2)
nkthread 2*max_thread_proc
nfile (2*nproc)+1000
nproc ((maxusers*5)+64)