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From "Shapira, Yoav" <Yoav.Shap...@mpi.com>
Subject RE: Tomcat 4 performance issues - Trying Tomcat 4.1.3 Beta
Date Fri, 21 Jun 2002 14:47:03 GMT
Howdy,
You're getting that because you need more memory - java by default will
run 
A good start now that you have something running (at least up to the
point it crashes with the OutOfMemory error) would be to 
1) Set -Xmx at something much higher than you should need, e.g.
-Xmx2048m
2) Run your app with a profiler.  See where memory gets allocated.  See
how much memory you really need.  Gradually trim down -Xmx until you
reach a point you have enough memory to handle your peaks, and then some
for safety.

Welcome to the fun exciting world of java heap performance tuning ;)

Yoav Shapira
Millennium ChemInformatics


>-----Original Message-----
>From: Remy Maucherat [mailto:remm@apache.org]
>Sent: Friday, June 21, 2002 9:46 AM
>To: Tomcat Users List
>Subject: Re: Tomcat 4 performance issues - Trying Tomcat 4.1.3 Beta
>
>Victor Popiol wrote:
>> I installed Tomcat 4.1.3 beta. Took a while to configure because the
>hidden issue with the user vs username parameter in the datasource
>definition.
>>
>> After it has been running for a day, it died. Looking at the logs I
found
>the following:
>>
>> java.lang.OutOfMemoryError
>> 	<<no stack trace available>>
>> java.lang.OutOfMemoryError
>> 	<<no stack trace available>>
>> java.lang.OutOfMemoryError
>> 	<<no stack trace available>>
>> java.lang.OutOfMemoryError
>> 	<<no stack trace available>>
>>
>> Any idea of components leaking memory?
>
>Without any additional details, I can't really help.
>
>A bug which could cause this has been fixed after 4.1.3:
>http://nagoya.apache.org/bugzilla/show_bug.cgi?id=9715
>
>This bug was also present in TC 4.0.x, though.
>
>Remy
>
>
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