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Support Article

PRPC engine is not coming up Post upgrade of 7.1 ML8

SA-12596

Summary



While performing a pre upgrade assessment from 6.1 SP2 to 7.1.8, after the upgrade has been completed, they are facing issues while trying to instantiate the application.


Error Messages



2015-07-06 16:49:37,332 [ TE-3768] [ STANDARD] [ ] [ ] ( etier.impl.EngineStartup) ERROR - PegaRULES initialization failed. Server: TE-3768
com.pega.pegarules.pub.context.InitializationFailedError: PRNodeImpl init failed
at com.pega.pegarules.session.internal.mgmt.PREnvironment.getThreadAndInitialize(PREnvironment.java:394)
at com.pega.pegarules.session.internal.PRSessionProviderImpl.getThreadAndInitialize(PRSessionProviderImpl.java:1998)
at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineStartup.initEngine(EngineStartup.java:664)
at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl._initEngine_privact(EngineImpl.java:165)
at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.doStartup(EngineImpl.java:138)
at com.pega.pegarules.web.servlet.WebAppLifeCycleListener._contextInitialized_privact(WebAppLifeCycleListener.java:311)
at com.pega.pegarules.web.servlet.WebAppLifeCycleListener.contextInitialized(WebAppLifeCycleListener.java:218)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethod(PRBootstrap.java:367)
at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethodPropagatingThrowable(PRBootstrap.java:408)
at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethodPropagatingThrowable(AppServerBridgeToPega.java:223)
at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethod(AppServerBridgeToPega.java:272)
at com.pega.pegarules.internal.web.servlet.WebAppLifeCycleListenerBoot.contextInitialized(WebAppLifeCycleListenerBoot.java:83)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4887)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5381)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:977)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1655)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.pega.pegarules.pub.runtime.IndeterminateConditionalException: Executable.evaluateWhen-Exception Encountered a :java.lang.NullPointerException
at com.pega.pegarules.session.internal.mgmt.Executable.evaluateWhen(Executable.java:4226)
at com.pega.pegarules.exec.internal.basic.dictionary.AccessInfoConclusion.evaluateConditions(AccessInfoConclusion.java:936)
at com.pega.pegarules.exec.internal.basic.dictionary.AccessInfoConclusion.evaluate(AccessInfoConclusion.java:808)
at com.pega.pegarules.session.internal.authorization.access.AccessEvaluator.haveAccess(AccessEvaluator.java:179)
at com.pega.pegarules.session.internal.authorization.access.AccessEvaluator.haveAccessWithFrame(AccessEvaluator.java:607)
at com.pega.pegarules.session.internal.authorization.Authorization.haveAccessWithFrame(Authorization.java:1918)
at com.pega.pegarules.data.internal.access.Saver.checkSecurity(Saver.java:701)
at com.pega.pegarules.data.internal.access.Saver.save(Saver.java:598)
at com.pega.pegarules.data.internal.access.DatabaseImpl.save(DatabaseImpl.java:5045)
at com.pega.pegarules.data.internal.access.DatabaseImpl.save(DatabaseImpl.java:5031)
at com.pega.pegarules.data.internal.access.DatabaseImpl.save(DatabaseImpl.java:5023)
at com.pega.pegarules.exec.internal.basic.SystemSettingsImpl.setDynamic(SystemSettingsImpl.java:356)
at com.pega.pegarules.cluster.internal.PRClusterImpl.getClusterName(PRClusterImpl.java:323)
at com.pega.pegarules.cluster.internal.PRClusterHazelcastImpl.configureHazelcast(PRClusterHazelcastImpl.java:527)
at com.pega.pegarules.cluster.internal.PRClusterHazelcastImpl.initialize(PRClusterHazelcastImpl.java:400)
at com.pega.pegarules.cluster.internal.PRClusterImpl.getInstance(PRClusterImpl.java:143)
at com.pega.pegarules.cluster.internal.PRClusterProviderImpl.getInstance(PRClusterProviderImpl.java:89)
at com.pega.pegarules.session.internal.mgmt.PRNodeImpl.joinCluster(PRNodeImpl.java:2376)
at com.pega.pegarules.session.internal.mgmt.PRNodeImpl.initializeSystem(PRNodeImpl.java:1012)
at com.pega.pegarules.session.internal.mgmt.PREnvironment.getThreadAndInitialize(PREnvironment.java:373)
... 28 more
Caused by: java.lang.NullPointerException
at com.pega.pegarules.generation.internal.PRGenProviderImpl.get(PRGenProviderImpl.java:474)
at com.pega.pegarules.session.internal.mgmt.Executable.evaluateWhen(Executable.java:4176)


Steps to Reproduce



Perform PRPC split-schema upgrade from 6.1 SP2 to 7.1.8 and try to bring up the PRPC instance


Root Cause



The root cause of this problem is a defect in Pegasystems’ code/rules.

The customer seems to have defined a Rule-Access-When on the class Data-Admin-System-Settings. According to the current implementation, search is initialized before VTable is initialized. While initializing search, a DASS is set and while setting this DASS, a save operation is performed on the DASS which tries to perform a security check and the Rule-Access-When is attempted to be retrieved from
VTable cache which leads to NPE as VTable is not initialized causing the issue.

Resolution



This issue is resolved by hotfix item HFix-23062.

 

Published July 27, 2015 - Updated October 8, 2020

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