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http://issues.apache.org/bugzilla/show_bug.cgi?id=33004 Summary: Cocoon consumes 100% of CPU and never releases it Product: Cocoon 2 Version: 2.1.5 Platform: PC OS/Version: Windows 2000 Status: NEW Severity: normal Priority: P2 Component: general components AssignedTo: dev@cocoon.apache.org ReportedBy: [EMAIL PROTECTED] This problem recently cropped up when we put a flowscript/jxtemplate application into production. The problem appears to be load related and we haven't been able reproduce it in test conditions yet due to lack of resources (time and hardware). After running normally for a time (the amount varies and appears to decrease as the load increases) the Tomcat process running Cocoon pegs the CPU at 100%. After stopping Apache HTTP to route users around the server the CPU never calms back down. >From comparing thread dumps of normal operation with the runaway condition it looks like the problem is related to XSL transformer somehow. Here's a snip from a thread dump during the runaway condition: ------------------------------------------------------------------- "TP-Processor1" daemon prio=5 tid=0x37056b80 nid=0x7c0 runnable [3927e000..3927fdb0] at java.util.Vector.indexOf(Vector.java:362) - waiting to lock <0x182fc440> (a java.util.Vector) at org.apache.xml.dtm.ref.sax2dtm.SAX2DTM.endPrefixMapping(SAX2DTM.java:1794) at org.apache.xalan.transformer.TransformerHandlerImpl.endPrefixMapping(TransformerHandlerImpl.java:455) at org.apache.cocoon.xml.AbstractXMLPipe.endPrefixMapping(AbstractXMLPipe.java:77) at org.apache.cocoon.components.EnvironmentChanger.endPrefixMapping(EnvironmentStack.java:117) at org.apache.cocoon.xml.AbstractXMLPipe.endPrefixMapping(AbstractXMLPipe.java:77) at org.apache.cocoon.components.EnvironmentChanger.endPrefixMapping(EnvironmentStack.java:117) at org.apache.xml.serializer.NamespaceMappings.popNamespaces(NamespaceMappings.java:247) at org.apache.xml.serializer.ToXMLSAXHandler.endElement(ToXMLSAXHandler.java:270) at org.apache.xalan.templates.ElemCopy.execute(ElemCopy.java:119) at org.apache.xalan.templates.ElemApplyTemplates.transformSelectedNodes(ElemApplyTemplates.java:395) at org.apache.xalan.templates.ElemApplyTemplates.execute(ElemApplyTemplates.java:177) at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2336) at org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:682) at org.apache.xalan.templates.ElemForEach.transformSelectedNodes(ElemForEach.java:420) at org.apache.xalan.templates.ElemForEach.execute(ElemForEach.java:259) at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2336) at org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:682) at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2336) at org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:682) at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2336) at org.apache.xalan.transformer.TransformerImpl.applyTemplateToNode(TransformerImpl.java:2202) at org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.java:1276) - locked <0x182fba98> (a org.apache.xml.serializer.ToXMLSAXHandler) at org.apache.xalan.transformer.TransformerImpl.run(TransformerImpl.java:3383) ----------------------------------------------------------------- Does anyone have any idea what could be causing the runaway CPU consumption? Is this something anyone else has encountered, or is it most likely something unique to our application? -James -- Configure bugmail: http://issues.apache.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee.
