On 20/03/2012 20:11, newsdkeu...@techno.ms wrote:
> Hi!
> 
> We are using Oracle the UCP driver (Oracle Universal Connection Pool) in
> tomcat 6 configured like in Oracles
> http://www.oracle.com/technetwork/articles/oem/ucp-jdbc-tomcat-355431.html.
> The problem is that the driver starts a lot of threads (Thread-0 to 57,
> UCP-worker-thread-1 to 24) which aren't stopped when the server shuts
> down or the application is stopped. Tomcat emits loads of error messages
> like this:
> 
>> The web application [/xxx] appears to have started a thread named
>> [Timer-17] but has failed to stop it. This is very likely to create a
>> memory leak.
> 
> Is there anything I can do, or do we just have to live with these loads
> of fatal error messages?

a) If Oracle provides a "shutdown" method - use it.

b) If no such method is provided, nag Oracle to add one.

c) Use a different connection pool

Mark

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