how to resolve following error ?
[root@client1 SPECvirt]# tail -f primectrl.out
2015-10-27 19:18:12:772 Tue Oct 27 19:18:12 CST 2015
2015-10-27 19:18:12:855 RMI server started: client1:9990
2015-10-27 19:18:12:864 [INFO] This is a perf-only benchmark run. Skipping active idle polling interval.
2015-10-27 19:18:12:865 PrimeControl: preparing client drivers.
2015-10-27 19:18:13:078 PrimeControl: starting clients...
2015-10-27 19:18:13:108 PrimeControl: PTDs not used for this benchmark run!
2015-10-27 19:18:13:108 PrimeControl: starting 4 masters.
2015-10-27 19:19:55:620 PrimeControl: waiting on 4 prime client(s).
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2015-10-27 19:19:56:637 setting hostsReady = true
2015-10-27 19:22:13:010 PrimeControl: Workload and prime controller builds: 79
2015-10-27 19:22:40:318 specvirt: clock sync check completed successfully
2015-10-27 19:22:40:318 specvirt: initiating workload ramp-up.
2015-10-27 19:22:40:318 Polling start time = Tue Oct 27 19:42:41 CST 2015
2015-10-27 19:22:40:318 Polling end time = Tue Oct 27 21:42:41 CST 2015
2015-10-27 19:27:42:824 PrimeControl: all workloads started.
2015-10-27 19:42:42:835 PrimeControl: all workloads in run time.
2015-10-27 19:42:42:835 PrimeControl: checking polling start response times...
2015-10-27 19:42:42:841 PrimeControl: sleeping for 0 sec
2015-10-27 19:42:42:841 PrimeControl: sending results counter reset command.
2015-10-27 19:42:42:842 PrimeControl: polling for 7200 sec
2015-10-27 21:42:42:842 PrimeControl: stopping result polling.
2015-10-27 21:42:42:842 PrimeControl: waiting for all workloads to stop...
2015-10-27 21:42:42:843 PrimeControl: [ERROR] remote exception occured while calling resetCounters() on 10.4.3.71: java.rmi.ConnectException: Connection refused to host: 10.4.3.71; nested exception is:
java.net.ConnectException: Connection refused
2015-10-27 21:42:52:842 PrimeControl: waiting for 2 masters to finish
2015-10-27 21:43:07:843 PrimeControl: waiting for 2 masters to finish
2015-10-27 21:43:22:843 PrimeControl: waiting for 2 masters to finish
2015-10-27 21:43:37:844 PrimeControl: waiting for 2 masters to finish
2015-10-27 21:43:52:844 PrimeControl: waiting for 2 masters to finish
2015-10-27 21:44:07:845 PrimeControl: waiting for 2 masters to finish
2015-10-27 21:44:22:845 PrimeControl: waiting for 2 masters to finish
2015-10-27 21:44:37:846 PrimeControl: waiting for 2 masters to finish
2015-10-27 21:44:52:846 PrimeControl: waiting for 2 masters to finish
2015-10-27 21:45:07:847 PrimeControl: waiting for 1 masters to finish
2015-10-27 21:45:22:847 PrimeControl: waiting for 1 masters to finish
2015-10-27 21:45:37:848 PrimeControl: waiting for 1 masters to finish
2015-10-27 21:45:52:848 PrimeControl: waiting for 1 masters to finish
2015-10-27 21:46:07:849 PrimeControl: waiting for 1 masters to finish
2015-10-27 21:46:22:849 PrimeControl: waiting for 1 masters to finish
2015-10-27 21:46:37:850 PrimeControl: waiting for 1 masters to finish
2015-10-27 21:46:52:850 PrimeControl: waiting for 1 masters to finish
2015-10-27 21:47:07:851 PrimeControl: waiting for 1 masters to finish
2015-10-27 21:47:22:851 PrimeControl: waiting for 1 masters to finish
2015-10-27 21:47:37:852 PrimeControl: waiting for 1 masters to finish
2015-10-27 21:47:52:852 PrimeControl: [ERROR] Maximum prime client wait time exceeded!
2015-10-27 21:47:52:853 PrimeControl: [ERROR] startMasters() failed!
2015-10-27 21:47:52:853 PrimeControl: sending abortTest() to prime clients.
2015-10-27 21:47:52:855 PrimeControl: [ERROR] Remote exception occured while calling getValidationRept() on client1:1096 for tile 0, benchmark 1: java.rmi.ConnectException: Connection refused to host: 10.4.3.71; nested exception is:
java.net.ConnectException: Connection refused
2015-10-27 21:47:52:856 PrimeControl: [ERROR] exception occurred sending abortTest signal to specweb_Stub[UnicastRef [liveRef: [endpoint:[10.4.3.71:56074](remote),objID:[7b688c85:150a906a2db:-7ffe, 2390146351237327130]]]]. Exception was:
java.rmi.ConnectException: Connection refused to host: 10.4.3.71; nested exception is:
java.net.ConnectException: Connection refused
2015-10-27 21:47:54:515 PrimeControl: stopping remote client processes
2015-10-27 21:47:56:522 PrimeControl: stopping local client threads
2015-10-27 21:47:56:522 PrimeControl: terminating run. Please wait...
2015-10-27 21:47:57:526 specvirt: benchmark run failed!
2015-10-27 21:47:57:526 specvirt: Done!