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From "DE VINZELLES, Guillaume \(ext.\)" <Guillaume.DEVINZELLES.prestata...@neufcegetel.fr>
Subject RE: JDBC Pool exhaustion
Date Wed, 11 Oct 2006 14:16:08 GMT
We've checked it two weeks ago, but we got to be sure, so we are doing it again today (and
tomorrow, I expect).

Thanks for the advice.

Guillaume de Vinzelles
DSI/PFS Neuf Cegetel
Altran Technologies
 
guillaume.devinzelles@neufcegetel.fr
 
01 70 18 21 64
-----Message d'origine-----
De : alberty.pascal@gmail.com [mailto:alberty.pascal@gmail.com] De la part de Pascal Alberty
Envoyé : mercredi 11 octobre 2006 16:10
À : Tomcat Users List
Objet : Re: JDBC Pool exhaustion

Check your code to unclosed connections (and statments) first !

On 10/11/06, DE VINZELLES, Guillaume (ext.)
<Guillaume.DEVINZELLES.prestataire@neufcegetel.fr> wrote:
> Hello there,
>
> We are running a Tomcat 5.5.17 on a Sun Solaris system (SunFire V240) with a Sun JVM
1.5, and we are facing unavoidable JDBC pool exhaustions. We are using an Oracle 9i database.
>
> Here is the JDBC entry from our server.xml:
>
> <Resource name="jdbc/Signup" auth="Container" type="javax.sql.DataSource"
> driverClassName="oracle.jdbc.driver.OracleDriver" url="jdbc:oracle:thin:@address:port:schema"
> username="user" password="pass" maxActive="120" maxIdle="10" maxWait="5000" removeAbandoned="true"
removeAbandonedTimeout="60" />
>
> The Tomcat manager shows around 1000 sessions on the server, which seems to be pertinent.
>
> We can see with the JMXProxy that the JDBC pool connections are never recycled, e.g.
the active connections number is going higher and higher and never stays at the same level,
which is strange because the amount of active sessions isn't growing.
>
> Do you have any idea about what we can do to 'force' the Tomcat server to release the
unused JDBC connections?
>
> Thanks in advance,
>
> Best Regards,
>
> Guillaume de Vinzelles
> DSI/PFS Neuf Cegetel
> Altran Technologies
>
> guillaume.devinzelles@neufcegetel.fr
>
> 01 70 18 21 64
>
>
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>


-- 
Pascal Alberty
http://pascal.albertyorban.be

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