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Posted to users@tomcat.apache.org by Hans Wichman <ha...@trimm.nl> on 2004/07/08 13:35:25 UTC
tomcat hangs, top displays 99%
Hi,
while stresstesting my application using tomcat 4.1.29, oracle, dbcp
connection pooling and a stresstest tool, I see the amount of my
connections in my pool fluctuate (as expected). At a certain while I still
have plenty connections left in the pool, errors start occuring:
org.apache.jasper.JasperException: setAttribute: Session already invalidated
and after this has happened for a while (some processing proceeds
normally), I get:
org.apache.jasper.JasperException:
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:254)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
... root cause ...
javax.servlet.ServletException:
at
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:536)
at org.apache.jsp.header_jsp._jspService(header_jsp.java:293)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
at this point tomcat hangs. If I shutdown the stresstest tool, tomcat still
displays at 99% when running top (freebsd).
Does anybody know why these errors occur, and why after stopping the
stresstest, tomcat is still at 99%?
I don't see any out of memory errors or something like that, and don't
really know where to start exploring the problem.
thanks in advance
Hans W
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Re: tomcat hangs, top displays 99%
Posted by Jon Wingfield <jo...@mkodo.com>.
Just a thought. Does your error page also have header.jsp included?
Have you got yourself into an infinite loop of "Session already
invalidated" IllegalStateExceptions?
Jon
Hans Wichman wrote:
> Hi,
> while stresstesting my application using tomcat 4.1.29, oracle, dbcp
> connection pooling and a stresstest tool, I see the amount of my
> connections in my pool fluctuate (as expected). At a certain while I
> still have plenty connections left in the pool, errors start occuring:
> org.apache.jasper.JasperException: setAttribute: Session already
> invalidated
>
> and after this has happened for a while (some processing proceeds
> normally), I get:
> org.apache.jasper.JasperException:
> at
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:254)
>
> at
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
> ... root cause ...
> javax.servlet.ServletException:
> at
> org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:536)
>
> at org.apache.jsp.header_jsp._jspService(header_jsp.java:293)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
>
> at this point tomcat hangs. If I shutdown the stresstest tool, tomcat
> still displays at 99% when running top (freebsd).
>
> Does anybody know why these errors occur, and why after stopping the
> stresstest, tomcat is still at 99%?
> I don't see any out of memory errors or something like that, and don't
> really know where to start exploring the problem.
>
> thanks in advance
> Hans W
>
>
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> To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
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