out of memory problem. Help! 2004-01-19 - By David Strupl
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If you use tomcat 5.0.x upgrade to 5.0.18. If you use 4.1.x downgrade to
4.1.27. There is a significant memory leak in tomcat in 5.0.16, 4.1.28(29).
Hope this helps,
David
Christian Witucki wrote:
> We fixed our session timeout to 15 minutes for 100 users and Tomcat
> hasn't crashed for 36 hours. Does anyone know how we can adjust for
> the possibilities of 1000's of users???
>
> Christian Witucki Network Analyst 375 Essjay Road Williamsville, NY
> 14221 716-631-3001 x3812
>
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>
>>>> sanjeev@(protected) 01/19/04 01:20AM >>>
>
>
> Check session-timeout in web.xml. -1 is never timeout
> <session-timeout>-1</session-timeout>
>
> -- --Original Message-- -- From: Christophe Andreoli
> [mailto:andreoli@(protected)] Sent: Friday, January 16, 2004 9:19 PM To:
> Tomcat Users List Subject: Re: out of memory problem. Help!
>
> "Shapira, Yoav" wrote:
>
>> Howdy,
>>
>>
>>> root cause
>>>
>>> java.lang.OutOfMemoryError 
>>>
>>>
>>> It happens When the corresponding request returns more than
>
> 20000-30000
>
>>> rows from the database, not every time
>
>
>
>
>
>> Perhaps you should allocate your JVM more memory, by using the Java
>>
>
> -Xmx
>
>> parameter.
>
>
> I did it and I gave 512 Mb.
>
> It works better but why are the 2000 objects are not garbaged after
> each request ?
>
>
>
>
>
>
>
>
> Alternatively, consider a system design that retrieves a
>
>> smaller, fixed number of rows instead of "20000-30000" and lets the
>>
>
> user
>
>> scroll, say 100 rows at a time.
>>
>> Yoav Shapira
>>
>
>
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