Drools business central was running fine. Persistent storage is pointed to /opt/pe/.niogit. But randomly it crashes and throws 404 when accessing the UI. Restarting the Kubernetes pod did not solve the issue. It gives a MissingObjectException. But a helm uninstall <service-name> and redeploying after that solved the issue. However, all the spaces and projects get deleted if I do an helm uninstall. Why this may happen? What is the reason for issue being resolved after helm uninstall? How can I resolve this without helm uninstall? The log when the error occurs looks like the following.
Error
05:10:51,450 INFO [org.uberfire.backend.server.security.adapter.WeblogicGroupsAdapter] (MSC service thread 1-1) Unable to find weblogic.security.Security, disabling weblogic adapter
05:10:51,451 INFO [org.uberfire.backend.server.security.adapter.WebSphereGroupsAdapter] (MSC service thread 1-1) Unable to look up UserRegistry in JNDI under key 'UserRegistry', disabling websphere adapter
05:10:51,607 ERROR [stderr] (MSC service thread 1-1) Warning: Nashorn engine is planned to be removed from a future JDK release
05:10:51,801 WARN [org.kie.server.services.impl.controller.DefaultRestControllerImpl] (KieServer-ControllerConnect) Exception encountered while syncing with controller at http://localhost/policyEnforcement/rest/controller/server/policyEnforcementServer error Read timed out
05:10:51,811 INFO [org.eclipse.jgit.internal.ketch.KetchSystem] (MSC service thread 1-1) Using 5 threads
05:10:51,966 INFO [org.apache.sshd.common.io.DefaultIoServiceFactoryFactory] (MSC service thread 1-1) No detected/configured IoServiceFactoryFactory using Nio2ServiceFactoryFactory
05:10:55,949 ERROR [org.uberfire.java.nio.fs.jgit.util.GitImpl] (MSC service thread 1-1) Unexpected exception (1/0).: org.eclipse.jgit.errors.MissingObjectException: Missing unknown b311fff01af6838edde59b58fd342be212def055
at deployment.policyEnforcement.war//org.eclipse.jgit.internal.storage.file.WindowCursor.open(WindowCursor.java:135)
at deployment.policyEnforcement.war//org.eclipse.jgit.lib.ObjectReader.open(ObjectReader.java:203)
at deployment.policyEnforcement.war//org.uberfire.java.nio.fs.jgit.util.commands.ResolveRevCommit.execute(ResolveRevCommit.java:39)
at deployment.policyEnforcement.war//org.uberfire.java.nio.fs.jgit.util.GitImpl.resolveRevCommit(GitImpl.java:490)
at deployment.policyEnforcement.war//org.uberfire.java.nio.fs.jgit.util.commands.GetLastCommit.execute(GetLastCommit.java:46)
at deployment.policyEnforcement.war//org.uberfire.java.nio.fs.jgit.util.GitImpl.lambda$getLastCommit$0(GitImpl.java:199)
at deployment.policyEnforcement.war//org.uberfire.java.nio.fs.jgit.util.GitImpl.retryIfNeeded(GitImpl.java:615)
at deployment.policyEnforcement.war//org.uberfire.java.nio.fs.jgit.util.GitImpl.getLastCommit(GitImpl.java:197)
at deployment.policyEnforcement.war//org.uberfire.java.nio.fs.jgit.util.commands.GetTreeFromRef.execute(GetTreeFromRef.java:35)
at deployment.policyEnforcement.war//org.uberfire.java.nio.fs.jgit.util.GitImpl.getTreeFromRef(GitImpl.java:273)
at deployment.policyEnforcement.war//org.uberfire.java.nio.fs.jgit.util.commands.GetPathInfo.execute(GetPathInfo.java:55)
at deployment.policyEnforcement.war//org.uberfire.java.nio.fs.jgit.util.GitImpl.lambda$getPathInfo$3(GitImpl.java:523)
at deployment.policyEnforcement.war//org.uberfire.java.nio.fs.jgit.util.GitImpl.retryIfNeeded(GitImpl.java:615)
at deployment.policyEnforcement.war//org.uberfire.java.nio.fs.jgit.util.GitImpl.getPathInfo(GitImpl.java:520)
at deployment.policyEnforcement.war//org.uberfire.java.nio.fs.jgit.JGitFileSystemProvider.newOutputStream(JGitFileSystemProvider.java:1011)
at deployment.policyEnforcement.war//org.uberfire.java.nio.fs.jgit.JGitFileSystemProvider.newFileSystem(JGitFileSystemProvider.java:620)
at deployment.policyEnforcement.war//org.uberfire.java.nio.file.FileSystems.newFileSystem(FileSystems.java:122)
at deployment.policyEnforcement.war//org.uberfire.java.nio.file.FileSystems.newFileSystem(FileSystems.java:78)
at deployment.policyEnforcement.war//org.uberfire.io.impl.AbstractIOService.newFileSystem(AbstractIOService.java:231)
at deployment.policyEnforcement.war//org.uberfire.backend.server.cdi.SystemConfigProducer$1.create(SystemConfigProducer.java:379)
at deployment.policyEnforcement.war//org.uberfire.backend.server.cdi.SystemConfigProducer$1.create(SystemConfigProducer.java:309)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.contexts.AbstractContext.get(AbstractContext.java:96)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bean.ContextualInstanceStrategy$DefaultContextualInstanceStrategy.get(ContextualInstanceStrategy.java:100)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bean.ContextualInstance.get(ContextualInstance.java:50)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:102)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:105)
at deployment.policyEnforcement.war//org.uberfire.java.nio.file.FileSystem$LockableFileSystem1366014918$Proxy$_$$_WeldClientProxy.getRootDirectories(Unknown Source)
at deployment.policyEnforcement.war//org.guvnor.structure.backend.config.ConfigurationServiceImpl.setup(ConfigurationServiceImpl.java:135)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.injection.producer.DefaultLifecycleCallbackInvoker.invokeMethods(DefaultLifecycleCallbackInvoker.java:83)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.injection.producer.DefaultLifecycleCallbackInvoker.postConstruct(DefaultLifecycleCallbackInvoker.java:66)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.injection.producer.BasicInjectionTarget.postConstruct(BasicInjectionTarget.java:122)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bean.ManagedBean.create(ManagedBean.java:164)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.contexts.AbstractContext.get(AbstractContext.java:96)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bean.ContextualInstanceStrategy$DefaultContextualInstanceStrategy.get(ContextualInstanceStrategy.java:100)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bean.ContextualInstanceStrategy$ApplicationScopedContextualInstanceStrategy.get(ContextualInstanceStrategy.java:140)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bean.ContextualInstance.get(ContextualInstance.java:50)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:102)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bean.proxy.ProxyMethodHandler.getInstance(ProxyMethodHandler.java:131)
at deployment.policyEnforcement.war//org.guvnor.structure.backend.config.ConfigurationServiceImpl$Proxy$_$$_WeldClientProxy.startBatch(Unknown Source)
at deployment.policyEnforcement.war//org.kie.bc.backend.AppSetup.init(AppSetup.java:74)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.injection.producer.DefaultLifecycleCallbackInvoker.invokeMethods(DefaultLifecycleCallbackInvoker.java:83)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.injection.producer.DefaultLifecycleCallbackInvoker.postConstruct(DefaultLifecycleCallbackInvoker.java:66)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.injection.producer.BasicInjectionTarget.postConstruct(BasicInjectionTarget.java:122)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bean.ManagedBean.create(ManagedBean.java:174)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.contexts.AbstractContext.get(AbstractContext.java:96)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bean.ContextualInstanceStrategy$DefaultContextualInstanceStrategy.get(ContextualInstanceStrategy.java:100)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bean.ContextualInstanceStrategy$ApplicationScopedContextualInstanceStrategy.get(ContextualInstanceStrategy.java:140)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bean.ContextualInstance.get(ContextualInstance.java:50)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:102)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bean.proxy.ProxyMethodHandler.getInstance(ProxyMethodHandler.java:131)
at deployment.policyEnforcement.war//org.kie.bc.backend.AppSetup$Proxy$_$$_WeldClientProxy.toString(Unknown Source)
at deployment.policyEnforcement.war//org.uberfire.backend.server.cdi.SystemConfigProducer.runPostConstruct(SystemConfigProducer.java:196)
at deployment.policyEnforcement.war//org.uberfire.backend.server.cdi.SystemConfigProducer.afterDeploymentValidation(SystemConfigProducer.java:177)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.injection.StaticMethodInjectionPoint.invoke(StaticMethodInjectionPoint.java:95)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.injection.MethodInvocationStrategy$SpecialParamPlusBeanManagerStrategy.invoke(MethodInvocationStrategy.java:187)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:330)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.event.ExtensionObserverMethodImpl.sendEvent(ExtensionObserverMethodImpl.java:123)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:308)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:286)
at javax.enterprise.api//javax.enterprise.inject.spi.ObserverMethod.notify(ObserverMethod.java:124)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.util.Observers.notify(Observers.java:166)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.event.ObserverNotifier.notifySyncObservers(ObserverNotifier.java:285)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.event.ObserverNotifier.notify(ObserverNotifier.java:273)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:177)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:171)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bootstrap.events.AbstractContainerEvent.fire(AbstractContainerEvent.java:53)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bootstrap.events.AbstractDeploymentContainerEvent.fire(AbstractDeploymentContainerEvent.java:35)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bootstrap.events.AfterDeploymentValidationImpl.fire(AfterDeploymentValidationImpl.java:28)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bootstrap.WeldStartup.validateBeans(WeldStartup.java:505)
at org.jboss.weld.core@3.1.6.Final//org.jboss.weld.bootstrap.WeldBootstrap.validateBeans(WeldBootstrap.java:93)
at org.jboss.as.weld@23.0.2.Final//org.jboss.as.weld.WeldStartService.start(WeldStartService.java:98)
at org.jboss.msc@1.4.12.Final//org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1739)
at org.jboss.msc@1.4.12.Final//org.jboss.msc.service.ServiceControllerImpl$StartTask.execute(ServiceControllerImpl.java:1701)
at org.jboss.msc@1.4.12.Final//org.jboss.msc.service.ServiceControllerImpl$ControllerTask.run(ServiceControllerImpl.java:1559)
at org.jboss.threads@2.4.0.Final//org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1990)
at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
at org.jboss.threads@2.4.0.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1363)
at java.base/java.lang.Thread.run(Thread.java:829)
