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2007-09-05 - By David Smith

Back
Add a validationQuery attribute to your <Resource ... /> definition with
a very basic query like "select 1". That'll test your connections on
borrow and re-create them as necessary.

--David

Alper Sar? wrote:
> Dear All,
>
> We have configured a portal system on Linux. In our system we uses
> connection pooling to connect to different databases. One of them is
> Oracle 9i. We have a problem with reconnection to the database.
> When the database restart tomcat can't establish connection to them or
> don't try to connect.
>
> Our configuration is like below;
>
> *System: *Linux RH AS 3
>
> *Servlet container:* Tomcat 5.5.23
>
> *Oracle driver jar name is:* ojdbc14.jar*
> *
> *Contex:*
>
> <Context>
> <WatchedResource>WEB-INF/web.xml</WatchedResource>
> <Resource name="jdbc/sabanci_portlet" username="xx" password="yy"
> driverClassName="oracle.jdbc.OracleDriver"
> url="jdbcracle:thin:@(protected):99:xyz" auth="Container"
> type="javax.sql.DataSource" maxActive="100" maxIdle="30"
> maxWait="10000" />
> </Context>
>
> *Catalina log:*
>
> No more data to read from socket
> FROM 'service.hr.rehberbilgilerim.RehberBilgilerimList. java' in
> getCalisanBilgilerim
> No more data to read from socket
> FROM 'service.hr.leave.LeaveList.java' in getLeaveYear
> Sep 2, 2007 11:21:18 AM org.apache.catalina.core.ApplicationDispatcher
> invoke
> SEVERE: Servlet.service() for servlet jsp threw exception
> java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
>
> What do you think the problem is?
>
> Thank you very much
>
> Alper SARI
> Sabanci University
>
>
>
>

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