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1. Re: JBoss crash After changing Kernel parameters
sfcoy Aug 6, 2012 10:53 PM (in response to asibrahim)Is that all that changed? Is it possible that the default thread stack size was changed as well?
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2. Re: JBoss crash After changing Kernel parameters
asibrahim Aug 7, 2012 4:36 AM (in response to sfcoy)Actually these 2 are the only kernel parameters that have been modified , I do not know if they might have impact on the thread stack size or not.
Do you think it is worth to change the thread stack size using the option -Xss?
Is it possible to be done during the JBoss start up?
Thanks for your quick reply.
Regards
Ahmed,
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3. Re: JBoss crash After changing Kernel parameters
sfcoy Aug 7, 2012 7:22 AM (in response to asibrahim)I'd be surprised if those kernel parameters had any impact on the stack size.
Do you have a backup of the previous sysctl.conf file? What happens if you rollback to the old one? Have you compared the old with the new?
What is the output of sysctl -a?
You could try adding the -Xss option in the bin/run.conf file to the line that sets up JAVA_OPTS, but that does not seem like the root cause. Normally we use that to reduce the default stack size, which can be pretty big (2M on Linux).
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4. Re: JBoss crash After changing Kernel parameters
asibrahim Aug 7, 2012 8:38 AM (in response to sfcoy)When rolling back these parameters the JBoss worked fine without any problems, i.e when the backup was restored the problem was solved.
I will get back to with these output of sysctl -a when i get it from the system admin.
Thanks again for your help.
Regards,
Ahmed