Great ! I'll wait for next rc then.
Ari S.
----- Original Message -----
From: "Igor Vaynberg" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Wednesday, April 26, 2006 8:55 AM
Subject: Re: [Wicket-user] wicket hangs in Session.getPage (causes tomcat to
run out of threads !)
should already be fixed in trunk.
-Igor
On 4/25/06, Ari Suutari <[EMAIL PROTECTED]> wrote:
Hi,
We have been preparing one part of our wicket application to production
use.
In testing there have been multple cases where whole application stops
working and
I think that we have now isolated to reason for this.
One of my collegues noticed that there is a message on tomcat's log file:
Apr 22, 2006 9:00:01 PM org.apache.tomcat.util.threads.ThreadPool logFull
SEVERE: All threads (150) are currently busy, waiting. Increase
maxThreads (150) or check the servlet status
As 150 should be more than enough for current environment, he did some
further
research on issue, which shows that problem is related to case where
end-user
clicks a link on page before the page has completely rendered (users just
do
it and I think that it cannot be changed :-).
When a link is clicked on page which hasn't fully rendered yet, following
exception occurs:
java.lang.NullPointerException
at wicket.PageMap.removeEntry(PageMap.java:335)
at wicket.PageMap.access(PageMap.java:628)
at wicket.PageMap.get(PageMap.java:459)
at wicket.Session.getPage(Session.java:395)
at
wicket.request.compound.DefaultRequestTargetResolverStrategy.resolveRenderedPage
(DefaultRequestTargetResolverStrategy.java:149)
at wicket.request.compound.DefaultRequestTargetResolverStrategy.resolve(
DefaultRequestTargetResolverStrategy.java:92)
at wicket.request.compound.AbstractCompoundRequestCycleProcessor.resolve(
AbstractCompoundRequestCycleProcessor.java:48)
at wicket.RequestCycle.step(RequestCycle.java:942)
at wicket.RequestCycle.steps(RequestCycle.java:1034)
at wicket.RequestCycle.request(RequestCycle.java:453)
at wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:215)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
This wouldn't be a problem otherwise, but it seems that wicket does not
recover
from this situation, as the thread in tomcat is left waiting for like
this:
Name: http-80-Processor22
State: WAITING on [EMAIL PROTECTED]
Total blocked: 7 Total waited: 5
Stack trace:
java.lang.Object.wait(Native Method)
java.lang.Object.wait(Object.java:474)
wicket.Session.getPage(Session.java:386)
wicket.request.compound.DefaultRequestTargetResolverStrategy.resolveRenderedPage
(DefaultRequestTargetResolverStrategy.java:149)
wicket.request.compound.DefaultRequestTargetResolverStrategy.resolve(
DefaultRequestTargetResolverStrategy.java:92)
wicket.request.compound.AbstractCompoundRequestCycleProcessor.resolve(
AbstractCompoundRequestCycleProcessor.java:48)
wicket.RequestCycle.step(RequestCycle.java:942)
wicket.RequestCycle.steps(RequestCycle.java:1034)
wicket.RequestCycle.request(RequestCycle.java:453)
wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:215)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
The thread just sits there forever so tomcat creates a new thread to serve
next thread and
if the user does similar things again we run out of threads.
This is occurring on wicket 1.2 rc2 and it is rather serious issue for us
since
I cannot figure any workaround for this.
Ari S.
-------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job
easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
Wicket-user mailing list
[email protected]
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-------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
Wicket-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/wicket-user
