Hi Rainer,

Thanks for jumping in again..


Rainer Jung-3 wrote:
> 
> When using big heaps, you need to take extra effort to get your GC
> settings right. Do you have GC-Logs? What are the JVM options you use to
> start Tomcat?
> 

The JVM options:
-Dcatalina.base=D:\tomcat -Dcatalina.home=D:\tomcat
-Djava.endorsed.dirs=D:\tomcat\common\endorsed
-Djava.io.tmpdir=D:\tomcat\temp
-Djavax.sql.DataSource.Factory=org.apache.commons.dbcp.BasicDataSourceFactory
-Dcom.sun.management.jmxremote -XX:MaxPermSize=512m
-Xloggc:D:\logs\gc\tomcat-gc.log -XX:+PrintGCDetails -XX:+UseParNewGC
-XX:+UseConcMarkSweepGC -XX:+UseTLAB -XX:+CMSClassUnloadingEnabled
-XX:+CMSPermGenSweepingEnabled

Today's GC log:  http://www.nabble.com/file/p20951581/20081211_tomcat-gc.zip
20081211_tomcat-gc.zip 


Rainer Jung-3 wrote:
> 
> The attached thread dumps do not belong to Tomcat. They are from the
> Gauss VIP Content Server.
> 

I know that. The whole system is based on the Livelink WCMS Content
Management System (formerly Gauss VIP). These thread dumps were all I had,
so that's why I included them. 


Rainer Jung-3 wrote:
> 
> First of all I assume you are talking about the event starting at 07:09?
> The initial problems are Timeouts (Winsock 10060). So again we need to
> find out, why things took to long on the backend. Thread Dumps would be
> a good start ...
> 


Rainer Jung-3 wrote:
> 
> - Check without APR
> 

This seems impossible to do, I had once removed the APR, and the system got
REALLY unstable under a normal day's load. I'm quite hesitant to try this
again, as you may understand.

Regards,
Jesse.

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