question Re: My CDH cluster can't execute commands on the cm management platform in Support Questions https://community.cloudera.com/t5/Support-Questions/My-CDH-cluster-can-t-execute-commands-on-the-cm-management/m-p/282683#M210134 My problem has been solved because the yarn service component has a client configuration that initializes itself without value. Tue, 12 Nov 2019 03:58:54 GMT miaow 2019-11-12T03:58:54Z My CDH cluster can't execute commands on the cm management platform https://community.cloudera.com/t5/Support-Questions/My-CDH-cluster-can-t-execute-commands-on-the-cm-management/m-p/281826#M209602 <P>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)</P> Fri, 01 Nov 2019 05:31:48 GMT https://community.cloudera.com/t5/Support-Questions/My-CDH-cluster-can-t-execute-commands-on-the-cm-management/m-p/281826#M209602 miaow 2019-11-01T05:31:48Z Re: My CDH cluster can't execute commands on the cm management platform https://community.cloudera.com/t5/Support-Questions/My-CDH-cluster-can-t-execute-commands-on-the-cm-management/m-p/282683#M210134 My problem has been solved because the yarn service component has a client configuration that initializes itself without value. Tue, 12 Nov 2019 03:58:54 GMT https://community.cloudera.com/t5/Support-Questions/My-CDH-cluster-can-t-execute-commands-on-the-cm-management/m-p/282683#M210134 miaow 2019-11-12T03:58:54Z