Passing Memory values with CATALINA_OPTS

[rob engstrom <ro...@happypuppy.com>]

As my programmer and I continue to troubleshoot our DBCP problems (thanks to
everyone, especially Angus for all the feedback), I am looking at some other
settings I have made from day 1, and wonder if there are any downsides or
benefits to what I have done.

 

 

First off, we're running Apache 1.3.27 and Tomcat 4.1.17 with j2sdk1.4.1_01

Everything is running on a Dual P4 1.8Ghz XEON supermicro system (so
essentially 4 processors) with 4GB ram, U160 SCSI array, etc..

 

So, with my CATALINA_OPTS, I am passing the following: 

 

export CATALINA_OPTS="-server -Xms512m -Xmx512m
-Dlog4j.configuration=file:///opt/tomcat/log4j.properties";

 

>From everything I have read, it seemed natural set the -server flag, and due
to some performance issues we were having, I increased the max/min memory
settings.  I also get the impression that this creates issues with garbage
collection, which Im thinking could relate back to some of our DBCP
problems.

 

I welcome any thoughts or suggestions on this.

 

Additionally, running the version of the JDK  that I am, M$'s website shows
their JDBC driver compatible with up to 1.3, and I wonder if there is any
reason to think that some of the problems are related to running a higher
version than M$ says they support?

 

 

Again, any and all suggestions are welcome

 

Rob Engstrom

 

---
robert engstrom 
CTO
rob@happypuppy.com
------- 
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