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From Ognjen Blagojevic <ognjen.d.blagoje...@gmail.com>
Subject Re: Re : Memory leak in Tomcat 6.0.35 ( 64 bit)
Date Tue, 02 Apr 2013 07:06:53 GMT
Saumil,

On 2.4.2013 5:01, saumil shah wrote:
> I recently deployed one of the COTS products SAP Business Objects. When the product was
deployed , everything seemed to run fine but yesterday we started experiencing "Service is
unavailable" error , upon enabling DEBUG logs in Tomcat , we saw the error below with memory
leak message. We were wondering what could have caused it ....
> The Tomcat is 64 bit , JVM is 64 bit but the applications deployed are 32 bit webapps
.... we say Tomcat6 process becoming unresponsive around 2GB mark.

There is a Wiki page [1] that descibes most couses of memory leaks.

Until webapp developers check and fix those leaks, you might mitigate 
them by restarting Tomcat every time you need to redeploy or restart any 
of your webapps. If that does not help, then you have some other 
problem. You could investigate further by analyzing thread activity 
during hangs using thread dumps [2] or monitoring tools like JConsole.

-Ognjen

[1] https://wiki.apache.org/tomcat/MemoryLeakProtection
[2] 
https://wiki.apache.org/tomcat/HowTo#How_do_I_obtain_a_thread_dump_of_my_running_webapp_.3F

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