Hi all, I find I fail to add a host due to Ssh executed failed:
2014-03-15 20:18:07,892 DEBUG [utils.ssh.SSHCmdHelper] (catalina-exec-7:null) Ssh executed failed java.lang.NullPointerException at com.cloud.utils.ssh.SSHCmdHelper.sshExecuteCmdOneShotWithExitCode(SSHCmdHelper.java:147) at com.cloud.utils.ssh.SSHCmdHelper.sshExecuteCmdOneShot(SSHCmdHelper.java:158) at com.cloud.utils.ssh.SSHCmdHelper.sshExecuteCmd(SSHCmdHelper.java:63) at com.cloud.hypervisor.kvm.discoverer.LibvirtServerDiscoverer.find(LibvirtServerDiscoverer.java:225) at com.cloud.resource.ResourceManagerImpl.discoverHostsFull(ResourceManagerImpl.java:741) at com.cloud.resource.ResourceManagerImpl.discoverHosts(ResourceManagerImpl.java:590) at org.apache.cloudstack.api.command.admin.host.AddHostCmd.execute(AddHostCmd.java:143) at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:158) at com.cloud.api.ApiServer.queueCommand(ApiServer.java:514) at com.cloud.api.ApiServer.handleRequest(ApiServer.java:372) at com.cloud.api.ApiServlet.processRequest(ApiServlet.java:305) at com.cloud.api.ApiServlet.doPost(ApiServlet.java:71) at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:615) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) at org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:889) at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:744) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:2282) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:701) PS: I am using CS4.2 and I confirm host's user and password are correct. I wonder why I get a SSH exception when I try to add a host to CS cluster? -- Regards, Frank