PQ82364: WHEN INVOKING THE PERFORMANCE SERVLET APPLICATION AFTER ENABLINGPMI WITH W502000 SERVER REGION STATS NOT RETURNED TO BROWSER. | |||||||||||||||||||||||||||||||||||||||||||
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![]() APAR status Closed as program error. Error description After application of w502000 an error will occur if you run the Perfservletapp.ear. The stack trace shows: ExtendedMessage: handleAdminFault; javax.management.RuntimeMBean exception at com.ibm.ws.management.connector.soap.SOAPConnectorClient.handle AdminFault(S at com.ibm.ws.management.connector.soap.SOAPConnectorClient .invokeTemplate(SOAPConnectorClient.invokeTemplate(SOA at com.ibm.ws.management.connector.soap.SOAPConnectorClient. invoke(SOAPConnect at com.ibm.ws.management.connector.soap.SOAPConnectorClient. invoke(SOAPConnect at $Proxy0.invoke(Unknown Source) at com.ibm.ws.management.AdminClientImpl.invoke(AdminClientImpl at com.ibm.ws.pmi.perfServer.CollectorJMX.invoke(CollectorJMX.ja at com.ibm.ws.pmi.perfServer.CollectorJMX.getStats(CollectorJMX. at com.ibm.ws.pmi.perfServer.CollectorJMX.gets(CollectorJMX.java at com.ibm.ws.pmi.perfServer.DataCache.retrieveDataFromServer(Da at com.ibm.ws.pmi.perfServer.DataCache.getDataInOneServer(DataCa at com.ibm.ws.pmi.perfServer.DataCache.getData(DataCache.java:32 Please note: The Server stats are not returned to the browser, however, the node agent stats are returned to the browser in the tests we ran in lab. It has also been determined that TPV Tivoli Performance Viewer does not work properly at the W502000 level. Following are two errors that have been reported to the lab: PMON3008W Error connecting to appliction server (in deployment manager) Also the following is seen in Windows: Java.lang.reflect.InvocationTargetException: java.lang.NoClassDefFoundError: com /ibm/logging/LoggerCfg at com.tivoli.jmx.utils.logging.CatUtil. createJmxCatalog(CatUtil.java:76 Please reference cmvc defect MD18796Local fix Problem summary **************************************************************** * USERS AFFECTED: All users of WebSphere Application Server * * V5.0 for z/OS * **************************************************************** * PROBLEM DESCRIPTION: PMI clients running on W502000 using * * certain PMI API runs into a * * NullPointerException on * * PerfMBeanAggregationHandler's * * aggregateResults method generating a * * null result back in the response data. * **************************************************************** * RECOMMENDATION: * **************************************************************** While using PerfServlet or other PMI clients running on W502000, NullPointerException on PerfMBeanAggregationHandler's aggregateResults method is hit and the client receives a result that contains null data back. Following is a sample stacktrace of the root cause of this failure that can be detected in the controller of the server when getStatsArray method is invoked from the PMI client: ---- Begin backtrace for nested exception java.lang.NullPointerException at com.ibm.ws.pmi.dynamicproxy.PerfMBeanAggregationHandler. aggregateResults(PerfMBeanAggregationHandler.java:186) at com.ibm.ws390.management.ProxyMBeanSupport. mbeanInvokerSpray(ProxyMBeanSupport.java:493) at com.ibm.ws390.management.proxy.ServantMBeanInvokerProxy. invoke(ServantMBeanInvokerProxy.java(Compiled Code)) at $Proxy5.getStatsArray(Unknown Source)Problem conclusion New design of the PerfMBean aggregation using a hybrid technique to poll and push the PMI data in the controller and servant will replace the PerfMBeanAggregationHandler class running in the controller that causes this NullPointerException. APAR PQ82364 is associated with SERVICE LEVEL W502001 of WebSphere Application Server V5.0 for z/OS.Temporary fix Comments
APAR is sysrouted FROM one or more of the following: APAR is sysrouted TO one or more of the following: Modules/Macros
Publications Referenced
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Document Information |
Current web document: swg1PQ82364.html
Product categories: Software > Application Servers >
Distributed Application & Web Servers > WebSphere Application
Server for z/OS
Operating system(s):
Software version: 500
Software edition:
Reference #: PQ82364
IBM Group: Software Group
Modified date: Feb 4, 2004
(C) Copyright IBM Corporation 2000, 2009. All Rights Reserved.