Re: [Wrapper-user] Out of memory error

[Leif M. <le...@ta...>]

Ashish Gawarikar wrote:

> Its not very easy to reproduce. I ran tomcat with 100 users for 100 
> iterations to do all the application
> stuff, and sometimes in a blue moon this happens.
> Our QA team is having a problem in reproducing this. 

Try setting the max memory to 32 or 48MB rather than the default 64MB. 
 Should
make it happen more easily.

Another idea is to create a class EatMemory.doIt() that simply creates a 
LinkedList
and goes into an infinite loop of creating double arrays of length 
100000 and adding
them to the list.   You should get an OutOfMemoryError pretty quickly. 
 Question is
whether or not it happens in the right place to cause Tomcat to stop 
responding.

> This does sound like a very very good option. If something like this 
> is present, it will
> help us a lot :) 

Ok, I posted a feature request to track this feature:
http://sourceforge.net/tracker/index.php?func=detail&aid=676599&group_id=39428&atid=425190
Read it over and post any comments if you would like to see things done 
any differently.

Cheers,
Leif