After a lot of resarching and debugging i found the source of this problem - a (minor) bug in Batik, that only appeared because some now unneeded code lines in the Cocoon SVG Builder. I submitted a patch to Bugzilla: #11856. I will submit a patch to Batik too, to resolve the real source of this problem.
Stefan > -----Original Message----- > From: Vadim Gritsenko [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, August 14, 2002 4:42 PM > To: [EMAIL PROTECTED] > Subject: Re: Strange error using JPEG/SVGSerializier under > heavy load - > ClassCastException > > > Stefan Seifert wrote: > > Hello Vadim. > > > > The Problem from the other thread is possibly related - > but i do not > > use saxon nor changed the default configuration of cocoon-2.0.3 > > concerning XSLT processor usage (at least i'm not aware of this - i > > did some updates from earlier cocoon version, but always > tried to get > > all changed configurations from the new cocoon.xconf etc.). > > > > Again, my XML streams transformed are not that big > (usually < 100kb), > > and the resulting JPEG is really small (~2-3kb). But > perhaps the bug > > appears by either big XML input files or a long runtime (points to > > small errors summing up and finally resulting in the error > - but why > > then a ClassCastException??). > > > > Unfortunately i have not found a way to reproduce the problem by > > force; in that case i would try to debug it. Perhaps i will try to > > "blow up" my XML input streams and see if i can produce > the problem > > that way. > > You could try... > > > > But i'm not sure if it has really to do something with the > > other thread. > > May be not, but these ClassCastExceptions look very > suspiciously to me. > > Vadim > > > > Stefan > > > > > > > >> -----Original Message----- From: Vadim Gritsenko > >> [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 14, > >> 2002 3:49 PM To: [EMAIL PROTECTED] Subject: Re: Strange > >> error using JPEG/SVGSerializier under heavy load - > >> ClassCastException > >> > >> > >> Stefan Seifert wrote: > >> > >> > >>> Configuration: Cocoon 2.0.3, Tomcat 3.2.3. We use the > >>> SVGSerializer with JPEG-Output to generate > >> > >> graphical menus (we could not get the customer to use only plain > >> text menus). > >> > >>> All works fine after a starting up tomcat. But after a few > >> > >> days (variing) without even touching the server the SVG > Generantion > >> fails with the Error below - a ClassCastException. Every following > >> request of a JPEG generation failes with the same error. > >> > >>> All other requests processing only HTML still work! > >>> > >>> This error is very strange, because all works until the SVG > >> > >> Serialization seems to hang up totally (but only the SVG > >> Serialization). > >> > >>> The memory utilisation is normal. There are no > >> > >> OutOfMemory-Erros or anything that points to a memory leak. > >> Unfortunately it was not possible to reproduce this problem by > >> force using a web stress tool, it only happens on the live servers > >> and only after a few days. > >> > >>> After a tomcat restart all works well again. > >>> > >>> Any ideas? I searched the mailing lists of Cocoon and Batik > >> > >> but found hints. > >> > >>> We tried replacing the batik 1.5beta2 shipped with Cocoon > >> > >> 2.0.3 with the latest 1.5 beta3, same problem. > >> > >>> > >>> > >> > >> I wonder is it related to this thread or not: > >> http://marc.theaimsgroup.com/?t=102795224000002&r=1&w=2 > >> > >> Vadim > >> > >> > >>> Stefan > >> > > ... > > > > --------------------------------------------------------------------- > Please check that your question has not already been answered in the > FAQ before posting. <http://xml.apache.org/cocoon/faq/index.html> > > To unsubscribe, e-mail: <[EMAIL PROTECTED]> > For additional commands, e-mail: <[EMAIL PROTECTED]> > > > > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
