YARN's Resource manager is stopped

I am not able to execute the map/reduce test program created using java. Please check ASAP.

[parthasarathyd2307@cxln4 java]$ hadoop jar build/jar/hdpexamples.jar com.cloudxlab.wordcount.StubDriver
19/09/08 22:48:36 INFO client.RMProxy: Connecting to ResourceManager at cxln2.c.thelab-240901.internal/10.142.1.2:8050
19/09/08 22:48:37 INFO client.AHSProxy: Connecting to Application History server at cxln2.c.thelab-240901.internal/10.142.1.2:10200
19/09/08 22:48:38 INFO ipc.Client: Retrying connect to server: cxln2.c.thelab-240901.internal/10.142.1.2:8050. Already tried 0 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=50, sleepTime=1000 MILLISECONDS)
19/09/08 22:48:39 INFO ipc.Client: Retrying connect to server: cxln2.c.thelab-240901.internal/10.142.1.2:8050. Already tried 1 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=50, sleepTime=1000 MILLISECONDS)

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