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From mdasari <mdas...@gmail.com>
Subject Webservice handling consuming considerable CPU (Windows)
Date Thu, 30 Apr 2009 00:55:55 GMT

Hi,

Geronimo: v 2.1.3
OS: Windows XP, Windows Server 2003

I've a web-service  that gets polled every N minutes, I noticed that when it
is servicing a request the CPU usage is hitting close to 80%. I expect to
have multiple clients to this web-service so it is going to be a problem.

Based on what I deduced, the following stack trace is trying to load several
of JAR files and not able to load/find them. This is resulting in lot of
kernel level calls thus CPU utilization.

---------- STACK of the thread processing a WS request and trying to load
JARs -------------

"http-0.0.0.0-8080-1" daemon prio=6 tid=0x437c7c00 nid=0x1700 runnable
[0x432ce000..0x432cfa14]
   java.lang.Thread.State: RUNNABLE
	at java.io.WinNTFileSystem.checkAccess(Native Method)
	at java.io.File.canRead(File.java:691)
	at
org.apache.geronimo.kernel.classloader.UrlResourceFinder.getClassPath(UrlResourceFinder.java:151)
	at
org.apache.geronimo.kernel.classloader.UrlResourceFinder.findResource(UrlResourceFinder.java:95)
	- locked <0x05420118> (a java.lang.Object)
	at
org.apache.geronimo.kernel.classloader.JarFileClassLoader$3.run(JarFileClassLoader.java:179)
	at java.security.AccessController.doPrivileged(Native Method)
	at
org.apache.geronimo.kernel.classloader.JarFileClassLoader.findResource(JarFileClassLoader.java:177)
	at
org.apache.geronimo.kernel.config.MultiParentClassLoader.getResource(MultiParentClassLoader.java:580)
	at
org.apache.geronimo.kernel.config.MultiParentClassLoader.getResource(MultiParentClassLoader.java:565)
	at
org.apache.geronimo.kernel.config.MultiParentClassLoader.getResource(MultiParentClassLoader.java:565)
	at
org.apache.geronimo.kernel.config.MultiParentClassLoader.getResource(MultiParentClassLoader.java:565)
	at
org.apache.geronimo.kernel.config.MultiParentClassLoader.getResource(MultiParentClassLoader.java:565)
	at java.lang.ClassLoader.getResourceAsStream(ClassLoader.java:1168)
	at
org.apache.catalina.loader.WebappClassLoader.getResourceAsStream(WebappClassLoader.java:1170)
	at javax.xml.transform.SecuritySupport$4.run(SecuritySupport.java:94)
	at java.security.AccessController.doPrivileged(Native Method)
	at
javax.xml.transform.SecuritySupport.getResourceAsStream(SecuritySupport.java:87)
	at
javax.xml.transform.FactoryFinder.findJarServiceProvider(FactoryFinder.java:250)
	at javax.xml.transform.FactoryFinder.find(FactoryFinder.java:223)
	at
javax.xml.transform.TransformerFactory.newInstance(TransformerFactory.java:102)
	at
org.apache.geronimo.axis2.WSDLQueryHandler.writeTo(WSDLQueryHandler.java:246)
	at
org.apache.geronimo.axis2.WSDLQueryHandler.writeTo(WSDLQueryHandler.java:240)
	at
org.apache.geronimo.axis2.WSDLQueryHandler.writeResponse(WSDLQueryHandler.java:164)
	at
org.apache.geronimo.axis2.Axis2WebServiceContainer.processGETRequest(Axis2WebServiceContainer.java:321)
	at
org.apache.geronimo.axis2.Axis2WebServiceContainer.doService2(Axis2WebServiceContainer.java:268)
	at
org.apache.geronimo.axis2.Axis2WebServiceContainer.doService(Axis2WebServiceContainer.java:205)
	at
org.apache.geronimo.axis2.Axis2WebServiceContainer.getWsdl(Axis2WebServiceContainer.java:161)
	at
org.apache.geronimo.tomcat.TomcatEJBWebServiceContext$EJBWebServiceValve.invoke(TomcatEJBWebServiceContext.java:159)
	at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:568)
	at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
	at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
	at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
	at java.lang.Thread.run(Thread.java:619)
---------------------



The following are files this java process is trying to read/load. (Output
from Windows process monitor). It seems to be doing in a loop as I see
continuous system calls to read these jar files repeatedly.

--------------------


5:32:51.2222845 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\bind\jaxb-impl\2.0.5\activation.jar
NAME NOT FOUND	
5:32:51.2225720 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\bind\jaxb-impl\2.0.5\jsr173_1.0_api.jar
NAME NOT FOUND	
5:32:51.2229192 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\bind\jaxb-impl\2.0.5\jaxb1-impl.jar
NAME NOT FOUND	
5:32:51.2232875 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\messaging\saaj\saaj-impl\1.3\saaj-api.jar
NAME NOT FOUND	
5:32:51.2236048 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\messaging\saaj\saaj-impl\1.3\activation.jar
NAME NOT FOUND	
5:32:51.2240117 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\bind\jaxb-impl\2.0.5\jaxb-api.jar
NAME NOT FOUND	
5:32:51.2242844 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\bind\jaxb-impl\2.0.5\activation.jar
NAME NOT FOUND	
5:32:51.2245549 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\bind\jaxb-impl\2.0.5\jsr173_1.0_api.jar
NAME NOT FOUND	
5:32:51.2246938 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\org\apache\derby\derbyclient\10.4.1.3\derbyLocale_zh_TW.jar
NAME NOT FOUND	
5:32:51.2250253 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\org\apache\derby\derbynet\10.4.1.3\derby.jar
NAME NOT FOUND	
5:32:51.2252595 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\org\apache\derby\derbytools\10.4.1.3\derbyLocale_cs.jar
NAME NOT FOUND	
5:32:51.2254948 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\org\apache\derby\derbytools\10.4.1.3\derbyLocale_de_DE.jar
NAME NOT FOUND	
5:32:51.2257273 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\org\apache\derby\derbytools\10.4.1.3\derbyLocale_es.jar
NAME NOT FOUND	
5:32:51.2259593 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\org\apache\derby\derbytools\10.4.1.3\derbyLocale_fr.jar
NAME NOT FOUND	
5:32:51.2262344 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\bind\jaxb-impl\2.0.5\jaxb1-impl.jar
NAME NOT FOUND	
5:32:51.2266488 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\bind\jaxb-impl\2.0.5\jaxb-api.jar
NAME NOT FOUND	
5:32:51.2269216 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\bind\jaxb-impl\2.0.5\activation.jar
NAME NOT FOUND	
5:32:51.2271920 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\bind\jaxb-impl\2.0.5\jsr173_1.0_api.jar
NAME NOT FOUND	
5:32:51.2274621 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\bind\jaxb-impl\2.0.5\jaxb1-impl.jar
NAME NOT FOUND	
5:32:51.2279473 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\bind\jaxb-impl\2.0.5\jaxb-api.jar
NAME NOT FOUND	
5:32:51.2282277 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\bind\jaxb-impl\2.0.5\activation.jar
NAME NOT FOUND	
5:32:51.2284987 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\bind\jaxb-impl\2.0.5\jsr173_1.0_api.jar
NAME NOT FOUND	
5:32:51.2287691 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\bind\jaxb-impl\2.0.5\jaxb1-impl.jar
NAME NOT FOUND	
5:32:51.2291697 PM	java.exe	2880	QueryOpen
E:\geronimo-tomcat6-javaee5-2.1.3\repository\com\sun\xml\bind\jaxb-impl\2.0.5\jaxb-api.jar
NAME NOT FOUND	
	
.......
--------------


My questions are:
1. I don't see those JARs in the location it is looking for, is there a way
to disable this lookup? Do I've to place those jar files in those locations?
2. Where does class-loader get this list of JARs? Can I tweak anything
there?
3. Did I configure something incorrectly?

Geronimo/Webservice functionally still works, but I'd expect severe problems
when I use this service with multiple ws clients.

Can anyone shed some light on this?

best regards
- mdasari
-- 
View this message in context: http://www.nabble.com/Webservice-handling-consuming-considerable-CPU-%28Windows%29-tp23303330s134p23303330.html
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