My multi-threading test harness starts a configurable number of parallel FOP instances but I've never come across an exception there. Anyway, I suggest you look at the following FAQ entry, because the exception below is just a follow-up error. The original error has likely been swallowed by Xalan's default ErrorListener.
http://xmlgraphics.apache.org/fop/faq.html#saxexception-mismatch Maybe that helps finding the original problem. From there we should be able to go forward. On 26.11.2008 15:21:59 Tobias van Treeck wrote: > Hi, > > we use FOP 0.95 in an application server environment. Recently we did > some loadtests and > everything is fine so far, except for one small issue: > > Tests: > - 5 parallel users > - bea application server > > We get an exception in the very first run in the initialization phase of > FOP. When the > first user starts to generate a pdf and the others try to generate also > (shortly behind) > - then we get the exception given below. After that the loadtest is > fine. > The problem seems to be that when the first user initializes FOP and > during that > time other threads try to access it - it fails. > If we make the test with just one user or one user and 4 others which > start later then > everything is fine. > > Any ideas? > Help appreciated, > ToM > > > org.xml.sax.SAXException: Mismatch: page-sequence > (http://www.w3.org/1999/XSL/Format) vs. root > (http://www.w3.org/1999/XSL/Format) [Fehler 88147] > [de.something.OurExampleGeneratorImpl] > javax.xml.transform.TransformerException: org.xml.sax.SAXException: > Mismatch: page-sequence (http://www.w3.org/1999/XSL/Format) vs. root > (http://www.w3.org/1999/XSL/Format) > at > org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:725) > at > org.apache.xalan.templates.ElemApplyTemplates.transformSelectedNodes(ElemApplyTemplates.java:425) > at > org.apache.xalan.templates.ElemApplyTemplates.execute(ElemApplyTemplates.java:216) > at > org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2339) > at > org.apache.xalan.transformer.TransformerImpl.applyTemplateToNode(TransformerImpl.java:2160) > at > org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.java:1213) > at > org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:668) > at > org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1129) > at > org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1107) > > > at > weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:492) > at > weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:108) > at > weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:435) > at > weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363) > at > weblogic.security.service.SecurityManager.runAs(SecurityManager.java:147) > at > weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:430) > at > weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:35) > at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:224) > at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:183) > Caused by: org.xml.sax.SAXException: Mismatch: page-sequence > (http://www.w3.org/1999/XSL/Format) vs. root > (http://www.w3.org/1999/XSL/Format) > at > org.apache.fop.fo.FOTreeBuilder$MainFOHandler.endElement(FOTreeBuilder.java:335) > at > org.apache.fop.fo.FOTreeBuilder.endElement(FOTreeBuilder.java:169) > at > org.apache.xalan.transformer.ResultTreeHandler.endElement(ResultTreeHandler.java:309) > at > org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:716) > ... 26 more > > >We're just being cautious as we don't currently have the necessary > >infrastructure to continuously test multi-threading behaviour. Many > >people > >are using FOP in a multi-threading environment and FOP seems to behave > >well. Just go ahead and use it, but do some load tests. I know of no > >current issues with multi-threading in 0.94 or current FOP Trunk. > > >On 19.02.2008 11:06:19 Laurent Berthelot wrote: > >> Hello, > >> > >> I want to use Fop in a multi-thread environement (J2EE) and on the > >> Apache > >> site it signals that Apache FOP may currently not be completely > >> thread safe. > >> > >> Have you yet experimented that ? > >> And if yes, had you problems with ? > >Jeremias Maerki > > Jeremias Maerki --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
