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_(back to JavaTips)_ Example database datasource configs are in docs/example/jca. JBoss and Oracle's jdbc driver don't play nice unless you turn on "TrackConnectionByTx". Give jboss more memory than the java default - you'll be glad you did (or sorry if you don't)! Pay attention to the pool sizes in =standardjboss.xml=, especially the Stateless Session Bean pool size, which is 100 by default. This seems pretty low, at least if you have methods that take a while to perform. If you're using MDB's you'll want to bump the =MaximumSize= in the Message Driven Bean =container-invoker-conf= to something larger than the default (which is 15). A strange error in jboss happened when I had the same ejb-jar declared twice in the application.xml. It caused strange errors that looked like classloader problems. For example, one error was an access violation error when one class tried to access a package-protected method of a class in the same package. Another had to do with a class not being able to call a method in another class because it couldn't find the appropriate signature, even though everything appeared to match. -- Main.TobyCabot - 14 Nov 2002 <br />
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