In our production environment we have the same setup. One shared tomcat install with a special startup script. This scipt sets the system classpath and other environment variables.
PS: you want to make sure you only have one copy of DBCP and the database drivers. Don't put then in WEB-INF/lib if you have then elsewhere.
-- Dirk
Harbick, Andrew wrote:
You can have multiple instances of Tomcat using the CATALINA_BASE environment variable: http://jakarta.apache.org/tomcat/tomcat-4.1-doc/RUNNING.txt
However, it doesn't seem that you can "overried" the common/lib directory as well.
My problem is that I don't own $CATALINA_HOME, and $CATALINA_HOME/common/lib doesn't contain my JDBC driver, and it would be a pain to get the owner to add it (they tend to try to keep "global" installations virgin)
This however means that I can't get DBCP to work because it always throws an exception indicating that the JDBC driver couldn't be loaded.
I've tried: -Dorking with CLASSPATHs but I think that's pointless because of the Tomcat class loading model: http://jakarta.apache.org/tomcat/tomcat-5.0-doc/class-loader-howto.html -Adding the JDBC jar to WEB-INF/lib in my webapp *.war file (but that didn't work and I saw information suggesting that it shouldn't) -Trying to find a way to override common/lib, but I couldn't find anything that would allow that.
So I'm a bit stuck. It seems like my only options are: 1. Get the owner of $CATALINA_HOME to drop the JDBC driver in $CATALINA_HOME/common/lib 2. Install my own "local" instance that I do have control over $CATALINA_HOME/common/lib 3. Find some way to override the common/lib dir.
...or something else.
Does anyone have insight into how to use a "shared instance" of Tomcat with DBCP?
Thanks, Andy
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