Symptoms

Customer recently upgraded ViPR SRM from v3.6.2 to v4.0.1.When attempting to open "SNMP Device Discovery" in Administration > Centralized Management > Modules, the following error is encountered:"Error 404: The requested resource is not available."After encountering the above message, the following error can be seen in the catalina logs on the frontend host: WARNING: Couln't create accessor for FLOW-WHATIF-SCENARIOS -> ( datasource=com.watch4net.apg.v2.gui.resource.database.FinalizableDataSource@13518f37, settings={mapping=FLOW-WHATIF-SCENARIOS.xml, table=whatif_scenarios} ), retrying later...java.lang.IllegalAccessException: can't find a suitable configuration file for accessor FLOW-WHATIF-SCENARIOS:{mapping=FLOW-WHATIF-SCENARIOS.xml, table=whatif_scenarios} in /opt/APG/property-mapping at com.watch4net.apg.v2.modules.database.FLOW.DatabaseAccessor.getConfigurationFile(DatabaseAccessor.java:228) at com.watch4net.apg.v2.modules.database.FLOW.DatabaseAccessor.getConfiguration(DatabaseAccessor.java:241) at com.watch4net.apg.v2.modules.database.FLOW.DatabaseAccessor.(DatabaseAccessor.java:150) at com.watch4net.apg.v2.modules.database.FLOW.DatabaseAccessorFactory.createDatabaseAccessor(DatabaseAccessorFactory.java:103) at com.watch4net.apg.v2.gui.database.ResourceDedicatedDatabaseAccessorProvider$UpdateContext.createAccessorIfNeeded(ResourceDedicatedDatabaseAccessorProvider.java:240) at com.watch4net.apg.v2.gui.database.ResourceDedicatedDatabaseAccessorProvider$UpdateContext.processPendingEvents(ResourceDedicatedDatabaseAccessorProvider.java:285) at com.watch4net.apg.v2.gui.database.ResourceDedicatedDatabaseAccessorProvider.checkAndReload(ResourceDedicatedDatabaseAccessorProvider.java:119) at com.watch4net.apg.v2.gui.database.AbstractGlobalDatabaseAccesssor.reloadAndCheckIfNeeded(AbstractGlobalDatabaseAccesssor.java:267) at com.watch4net.apg.v2.gui.database.AbstractGlobalDatabaseAccesssor.validate(AbstractGlobalDatabaseAccesssor.java:289) at com.watch4net.apg.v2.gui.database.DatabaseCheckingTask.checkAccessors(DatabaseCheckingTask.java:143) at com.watch4net.apg.v2.gui.database.DatabaseCheckingTask.run(DatabaseCheckingTask.java:173) at com.watch4net.apg.v2.gui.database.DatabaseCheckingTask.initialize(DatabaseCheckingTask.java:161) at com.watch4net.apg.v2.gui.database.DatabaseCheckingTask$ApplicationListener.onStartup(DatabaseCheckingTask.java:78) at com.watch4net.apg.gui.servlet.ApplicationContextListener.contextInitialized(ApplicationContextListener.java:131) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4210) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4709) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:802) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:583) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:676) at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:602) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:503) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1322) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:325) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1068) at org.apache.catalina.core.StandardHost.start(StandardHost.java:822) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1060) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) at org.apache.catalina.core.StandardService.start(StandardService.java:525) at org.apache.catalina.core.StandardServer.start(StandardServer.java:759) at org.apache.catalina.startup.Catalina.start(Catalina.java:595) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.watch4net.apg.v2.tomcat.forked.Bootstrap.launch(Bootstrap.java:66) at com.watch4net.apg.v2.tomcat.forked.Bootstrap.main(Bootstrap.java:45) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.watch4net.component.loader.util.ComponentLauncher.invoke(ComponentLauncher.java:108) at com.watch4net.component.loader.util.ComponentLauncher.main(ComponentLauncher.java:49) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.watch4net.apg.module.plugin.service.Bootstrap.main(Bootstrap.java:150)

Cause

The following path is incomplete in the common.properties configuration file on the frontend host:apg.resources.webapps.dir=The common.properties configuration file can be found in the following location on the frontend host:/opt/APG/Custom/WebApps-Resources/Default/conf/ The path should read as: apg.resources.webapps.dir=Custom/WebApps-Resources/Default

Resolution

The "apg.resources.webapps.dir=" path in the common.properties configuration file on the ViPR SRM frontend host is not complete and will need to be updated.On the ViPR SRM frontend host, CD to /opt/APG/Custom/WebApps-Resources/Default/conf/ and edit the line "apg.resources.webapps.dir=" to the following: apg.resources.webapps.dir=Custom/WebApps-Resources/Default After the edit, restart all services on the frontend server. Upon restart, Tomcat will find the configuration at correct location and the issue will be resolved.

Support Cases