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Posted to dev@servicemix.apache.org by "Guillaume Nodet (JIRA)" <ji...@apache.org> on 2007/03/02 10:21:03 UTC

[jira] Resolved: (SM-860) EndpointReferenceBuilder.getReference() should cache its DocumentBuilderFactory instance

     [ https://issues.apache.org/activemq/browse/SM-860?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guillaume Nodet resolved SM-860.
--------------------------------

       Resolution: Fixed
    Fix Version/s: 3.2
         Assignee: Guillaume Nodet

Alex, thx for this patch.
I have slightly modified it to allow more reuse amongst different threads, but the result should
be the same :-)

Author: gnodet
Date: Fri Mar  2 01:12:08 2007
New Revision: 513670

URL: http://svn.apache.org/viewvc?view=rev&rev=513670
Log:
SM-860: EndpointReferenceBuilder.getReference() should cache its DocumentBuilderFactory instance

Modified:
   incubator/servicemix/trunk/core/servicemix-core/src/main/java/org/apache/servicemix/jbi/servicedesc/EndpointReferenceBuilder.java
   incubator/servicemix/trunk/core/servicemix-core/src/main/java/org/apache/servicemix/jbi/util/DOMUtil.java

Author: gnodet
Date: Fri Mar  2 01:15:03 2007
New Revision: 513673

URL: http://svn.apache.org/viewvc?view=rev&rev=513673
Log:
SM-860: EndpointReferenceBuilder.getReference() should cache its DocumentBuilderFactory instance

Modified:
   incubator/servicemix/branches/servicemix-3.1/core/servicemix-core/src/main/java/org/apache/servicemix/jbi/servicedesc/EndpointReferenceBuilder.java
   incubator/servicemix/branches/servicemix-3.1/core/servicemix-core/src/main/java/org/apache/servicemix/jbi/util/DOMUtil.java



> EndpointReferenceBuilder.getReference() should cache its DocumentBuilderFactory instance
> ----------------------------------------------------------------------------------------
>
>                 Key: SM-860
>                 URL: https://issues.apache.org/activemq/browse/SM-860
>             Project: ServiceMix
>          Issue Type: Bug
>          Components: servicemix-core
>    Affects Versions: 3.1
>            Reporter: Alex Boisvert
>         Assigned To: Guillaume Nodet
>             Fix For: 3.1.1, 3.2
>
>         Attachments: EndpointReferenceBuilder.patch.txt
>
>
> Doing performance testing on Apache Ode, I saw the following call stack:
> "pool-1-thread-31" prio=1 tid=0x975717a8 nid=0x46df waiting for monitor entry [0x9e2f4000..0x9e2f4e60]
>         at org.apache.xbean.classloader.UrlResourceFinder.findResource(UrlResourceFinder.java:91)
>         - waiting to lock <0xa65d5a18> (a java.lang.Object)
>         at org.apache.xbean.classloader.JarFileClassLoader$3.run(JarFileClassLoader.java:153)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at org.apache.xbean.classloader.JarFileClassLoader.findResource(JarFileClassLoader.java:151)
>         at org.apache.xbean.classloader.MultiParentClassLoader.getResource(MultiParentClassLoader.java:246)
>         at java.lang.ClassLoader.getResourceAsStream(ClassLoader.java:1159)
>         at javax.xml.parsers.SecuritySupport$4.run(SecuritySupport.java:72)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.xml.parsers.SecuritySupport.getResourceAsStream(SecuritySupport.java:65)
>         at javax.xml.parsers.FactoryFinder.findJarServiceProvider(FactoryFinder.java:213)
>         at javax.xml.parsers.FactoryFinder.find(FactoryFinder.java:185)
>         at javax.xml.parsers.DocumentBuilderFactory.newInstance(DocumentBuilderFactory.java:98)
>         at org.apache.servicemix.jbi.servicedesc.EndpointReferenceBuilder.getReference(EndpointReferenceBuilder.java:34)
>         at org.apache.servicemix.jbi.servicedesc.InternalEndpoint.getAsReference(InternalEndpoint.java:69)
>         at org.apache.ode.jbi.JbiEndpointReference.toXML(JbiEndpointReference.java:64)
>         at org.apache.ode.bpel.engine.BpelRuntimeContextImpl.invoke(BpelRuntimeContextImpl.java:761)
>         at org.apache.ode.bpel.runtime.INVOKE.run(INVOKE.java:96)
>         at sun.reflect.GeneratedMethodAccessor30.invoke(Unknown Source)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:585)
>         at org.apache.ode.jacob.vpu.JacobVPU$JacobThreadImpl.run(JacobVPU.java:451)
>         at org.apache.ode.jacob.vpu.JacobVPU.execute(JacobVPU.java:139)
>         at org.apache.ode.bpel.engine.BpelRuntimeContextImpl.execute(BpelRuntimeContextImpl.java:805)
>         at org.apache.ode.bpel.engine.BpelProcess.handleWorkEvent(BpelProcess.java:310)
>         at org.apache.ode.bpel.engine.BpelEngineImpl.onScheduledJob(BpelEngineImpl.java:311)
>         at org.apache.ode.bpel.engine.BpelServerImpl.onScheduledJob(BpelServerImpl.java:386)
>         at org.apache.ode.bpel.scheduler.quartz.QuartzSchedulerImpl.doExecute(QuartzSchedulerImpl.java:340)
>         at org.apache.ode.bpel.scheduler.quartz.QuartzSchedulerImpl.access$000(QuartzSchedulerImpl.java:59)
>         at org.apache.ode.bpel.scheduler.quartz.QuartzSchedulerImpl$1$1.call(QuartzSchedulerImpl.java:223)
>         at org.apache.ode.bpel.scheduler.quartz.QuartzSchedulerImpl.execTransaction(QuartzSchedulerImpl.java:264)
>         at org.apache.ode.bpel.scheduler.quartz.QuartzSchedulerImpl$2.call(QuartzSchedulerImpl.java:292)
>         at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:123)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
>         at java.lang.Thread.run(Thread.java:595)
> As you can see, it appears EndpointReferenceBuilder.getReference() creates a new instance of DocumentBuilderFactory every time it resolves an EPR... which is a significant performance overhead.

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