Forum Problems Installing LAMS: Re: Re: Re: Re: Problem: LAMS2.0.3 start error

By: Juan Antonio López Martínez

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Hi, i just installed lams in a Quad Core AMD Opteron Processor 2352 2.10 Ghz (2 processors), 2GB RAM windows server 2008 R2 standard edition, with JDK 1.5 (it was impossible to make run ver. 1.6 with LAMS). Now its running, but it hangs in desing areas and send timeout errors to wrapper log file:
ERROR | wrapper | 2011/03/29 11:04:51 | JVM appears hung: Timed out waiting for signal from JVM.
ERROR | wrapper | 2011/03/29 11:04:51 | JVM did not exit on request, terminated
ERROR | wrapper | 2011/03/29 12:01:50 | Shutdown failed: Timed out waiting for signal from JVM.
ERROR | wrapper | 2011/03/29 12:01:50 | JVM did not exit on request, terminated.

I was testing with your last testing method and my CPU usage rich 15% max. and physical memory to 1GB because i adjust memory usage in wrapper.conf to 512 - 1GB, but LAMS service is still falling. Some idea wath can i do?
I attach images

Posted by Juan Antonio López Martínez

By: Ernie Ghiglione

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Hi Juan Antonio,

I've just came across this problem recently too...

The problem is the wrapper that allows LAMS to run as a windows service. We use Tanuki's wrapper for this.

However, the version we use is the Community edition that is just 32 bits. If you are running Windows 2008 R2 then that's not good for you.

I guess one option is to purchase the 64 bit version from Tanuki (~$100 USD).

Or, what I did was to use the run.bat instead

To make sure that LAMS starts on server reboot, I set up a task in the scheduler that would run the run.bat on server start up. I'm not 100% happy with this as it doesn't auto recover if the application freezes or crashes.

There are two alternative open source versions that you might want to explore:

* JSmooth and
* Wrapper

Eventually I would need to look into this as more and more we are seeing Windows 64 bits servers. But if you are willing to have a look at these now and share your experiences with us, it'll be really really helpful.

Thanks,

Ernie

Posted by Ernie Ghiglione

By: Juan Antonio López Martínez

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Thanks for your suggestions, I´ll try any one, and I´ll share the results...

Posted by Juan Antonio López Martínez

By: Ernie Ghiglione

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See my reply about YAJSW.

YAJSW makes creating a wrapper a walk in the park. Additionally, it has a LGPL license and works with Win 64 bits!

Brilliant!

Ernie

Posted by Ernie Ghiglione