provide a small validation script that smoke tests the installed cluster
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Key: HADOOP-7655
URL: https://issues.apache.org/jira/browse/HADOOP-7655
Project: Hadoop Common
Issue Type: Bug
Reporter: Arpit Gupta
currently we have scripts that will setup a hadoop cluster, create users etc.
We should add a script that will smoke test the installed cluster. The script
could run 3 small mr jobs teragen, terasort and teravalidate and cleanup once
its done.
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