----- Original Message ----- > From: "Pid" <p...@pidster.com> > To: "Tomcat Users List" <users@tomcat.apache.org> > Sent: Thursday, 28 July, 2011 9:07:13 AM > Subject: Re: Wrong Response returned for a Request > > >>> On 27/07/2011 17:23, Robert Elliot wrote: > >>>> We are using Tomcat 6.0.29, and occasionally experiencing > >>>> concurrency issues > >>>> which look very much like the wrong response is being returned > >>>> for a request. > >>>> While we cannot reproduce it reliably, it seems to happen when > >>>> Keep-Alive is turned on. > > In most cases this symptom turns out to be a result of the session, > request or response object being retained (perhaps as an instance > field > in a Servlet) where they should not be. > > Can you double check your code to see if this is possible? >
Unfortunately it's a third party application we're running. However as a gut feeling I'd expect a straightforward bug like that to be easier to reproduce; we've spent a day chucking between 100 and 1200 concurrent clients at it and we only see the problem very occasionally. Oddly once it has happened it keeps happening for a period - and then stops. I think we need to think harder about how to diagnose it - at the moment we can't pin it to a specific layer, it could be the application (most likely), Tomcat, mod_proxy or Apache HTTPD (we're running 2.2.3). I only asked here as the bug sounded so like what we were seeing. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
