Hi, everyone, my CDH cluster can't execute commands on the cm management platform, such as pushing the client configuration, killing the jobs on the yarn, etc. The error log of the server is as follows. Thank you for your suggestions. Thank you. com.cloudera.cmf.command.CmdExecException: com.cloudera.cmf.command.CmdExecException: java.lang.RuntimeException: java.lang.NullPointerException A server error has occurred. The full stack trace is not shown here due to security reasons. See Cloudera Manager Server log for details. WARN 986168735@scm-web-253:com.cloudera.cmf.command.flow.CmdStep: Unexpected exception during command work com.cloudera.cmf.command.CmdExecException: java.lang.RuntimeException: java.lang.NullPointerException at com.cloudera.cmf.command.flow.SeqFlowCmd.run(SeqFlowCmd.java:119) at com.cloudera.cmf.command.CmdWorkCommand.execute(CmdWorkCommand.java:94) at com.cloudera.cmf.service.ServiceHandlerRegistry.executeCommandHelper(ServiceHandlerRegistry.java:885) at com.cloudera.cmf.service.ServiceHandlerRegistry.executeCommand(ServiceHandlerRegistry.java:845) at com.cloudera.cmf.command.flow.CmdWorkCtx.execSvcCmd(CmdWorkCtx.java:159) at com.cloudera.cmf.command.flow.work.ExecSvcCmdWork.doWork(ExecSvcCmdWork.java:91) at com.cloudera.cmf.command.flow.CmdStep.doWork(CmdStep.java:177) at com.cloudera.cmf.command.flow.work.ScatterCmdWork.doWork(ScatterCmdWork.java:86) at com.cloudera.cmf.command.flow.CmdStep.doWork(CmdStep.java:177) at com.cloudera.cmf.command.flow.SeqCmdWork.doWork(SeqCmdWork.java:107) at com.cloudera.cmf.command.flow.CmdStep.doWork(CmdStep.java:177) at com.cloudera.cmf.command.flow.SeqFlowCmd.run(SeqFlowCmd.java:117) at com.cloudera.cmf.command.CmdWorkCommand.execute(CmdWorkCommand.java:94) at com.cloudera.cmf.service.ServiceHandlerRegistry.executeClusterCommandHelper(ServiceHandlerRegistry.java:833) at com.cloudera.cmf.service.ServiceHandlerRegistry.executeClusterCommand(ServiceHandlerRegistry.java:793) at com.cloudera.cmf.service.ServiceHandlerRegistry.executeClusterCommand(ServiceHandlerRegistry.java:788) at com.cloudera.server.cmf.components.OperationsManagerImpl.executeClusterCmd(OperationsManagerImpl.java:1771) at com.cloudera.server.web.cmf.cluster.ClusterController.dispatchClusterCommand(ClusterController.java:213) at com.cloudera.server.web.cmf.cluster.ClusterController$$FastClassByCGLIB$$2b29d5cd.invoke() at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191) at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:688) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) at org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:61) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:621) at com.cloudera.server.web.cmf.cluster.ClusterController$$EnhancerByCGLIB$$e0bcbdd8.dispatchClusterCommand() 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)
