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Struts & Hibernate
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| | | Stackoverflow after DB inactivity | Stackoverflow after DB inactivity 2003-09-16 - By Jon Wingfield
Back
I don't use dbcp but it sounds like your database connections are timing
out. Do you have autoReconnect=true in your mysql jdbc connection url?
Vikram Goyal wrote:
> Hello all,
>
> I am getting a Stackoverflow error in Tomcat 4.1+ after a period of database
> inactivity, typically (3+ hours). I am using Struts for the front end and
> while the non DB access pages work fine, as soon as access to a page is
> requested where data is to be fetched from the database, I get the
> StackOverflow. This is not random and I can replicate the error. The error
> goes away however, when I try to access the same page twice or thrice and
> everything works fine after that.
>
> This error is appearing on both windows and linux, i.e., Tomcat is on these
> machines, although the database, MySQL 4 is running on linux 9. The DB
> access is through a connection pool I set up in Struts config for my
> application using org.apache.commons.dbcp.BasicDataSource 
>
> The stack trace follows:
> 2003-09-16 11:39:56 StandardWrapperValve[action]: Servlet.service() for
> servlet action threw exception
> javax.servlet.ServletException : Servlet execution threw an exception
> at
> org.apache.catalina.core.ApplicationFilterChain (Application
> FilterChain.java:269)
> at
> org.apache.catalina.core.ApplicationFilterChain (ApplicationFilterCh
> ain.java:193)
> at
> org.apache.catalina.core.StandardWrapperValve (StandardWrapperValve.ja
> va:256)
> at
> org.apache.catalina.core.StandardPipeline $StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:643)
> at
> org.apache.catalina.core.StandardPipeline (StandardPipeline.java:480)
> at org.apache.catalina.core.ContainerBase (ContainerBase.java:995)
> at
> org.apache.catalina.core.StandardContextValve (StandardContextValve.ja
> va:191)
> at
> org.apache.catalina.core.StandardPipeline $StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:643)
> at
> org.apache.catalina.core.StandardPipeline (StandardPipeline.java:480)
> at org.apache.catalina.core.ContainerBase (ContainerBase.java:995)
> at
> org.apache.catalina.core.StandardContext (StandardContext.java:2416)
> at
> org.apache.catalina.core.StandardHostValve (StandardHostValve.java:180
> )
> at
> org.apache.catalina.core.StandardPipeline $StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:643)
> at
> org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.
> java:171)
> at
> org.apache.catalina.core.StandardPipeline $StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:641)
> at
> org.apache.catalina.valves.ErrorReportValve (ErrorReportValve.java:172
> )
> at
> org.apache.catalina.core.StandardPipeline $StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:641)
> at
> org.apache.catalina.core.StandardPipeline (StandardPipeline.java:480)
> at org.apache.catalina.core.ContainerBase (ContainerBase.java:995)
> at
> org.apache.catalina.core.StandardEngineValve (StandardEngineValve.java
> :174)
> at
> org.apache.catalina.core.StandardPipeline $StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:643)
> at
> org.apache.catalina.core.StandardPipeline (StandardPipeline.java:480)
> at org.apache.catalina.core.ContainerBase (ContainerBase.java:995)
> at org.apache.coyote.tomcat4.CoyoteAdapter (CoyoteAdapter.java:223)
> at
> org.apache.coyote.http11.Http11Processor (Http11Processor.java:601)
> at
> org.apache.coyote.http11.Http11Protocol $Http11ConnectionHandler.processConne
> ction(Http11Protocol.java:392)
> at
> org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
> at
> org.apache.tomcat.util.threads.ThreadPool $ControlRunnable.run(ThreadPool.jav
> a:619)
> at java.lang.Thread (Thread.java:534)
> -- -- Root Cause -- --
> java.lang.StackOverflowError
>
> Any help, pointers appreciated.
>
> Regards,
> Vikram
>
>
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