Hi Guys, Thanks for the attempts... these machines are monsters, 8 cores and about 32 gigs... Tomcat has more resources allocated than it should ever need, the CPU never drops just grows after the hot deploy (and only then). The machine doesn't fall over either because of the extensive resources. As I have said this only happens with a hot deploy, so not sure what role GC could play in that.
Thanks, Peter ----- Original Message ----- From: "Kalle Korhonen" <kalle.o.korho...@gmail.com> To: "Tapestry users" <users@tapestry.apache.org> Sent: Thursday, 21 July, 2011 07:53:56 GMT +02:00 Athens, Beirut, Bucharest, Istanbul Subject: Re: 100% CPU load after hot deploy of Tapestry 5 Application on Tomcat 6 As Mark said, GC exhausting the system is a possibility if it eventually recovers from the 100% CPU. If at all possible, try with higher max memory allocation and Tomcat 7. Kalle On Wed, Jul 20, 2011 at 2:16 AM, <p.stavrini...@albourne.com> wrote: > Hi All, > > This is a tricky question one since I do realize there are several > possibilities to explain the problem, not all of which are Tapestry related. > We have battled to understand what is going on in production for the past > year or so, and have tried to pinpoint where the problem lies and come up > short. If anyone has experienced anything similar *please share. > > Our environment is: > > Ubuntu Server > Tapestry 5.1 > JDK 6 > Tomcat 6 > Apache in front (reverse proxy) > > We are deploying our Tapestry apps to Tomcat 6, and they do run great even > with load, and it remains very stable as the session count increases; this is > when a server restart is done after a deployment. > > The problem appears to be specific to 'Tapestry applications' and hot > deployment. We run several apps, both small and large and they all react the > same way... If we stop then undeploy any of these Tapestry apps, and > afterwards do a hot deploy with a newer version (without the restart), the > CPU usage shoots to 100% and stays there. JSP based apps pure Servlets don't > appear to react in the same way. > > Has anybody experienced something similar? > > Kind regards, > Peter > > > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > For additional commands, e-mail: users-h...@tapestry.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
