THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Data returned : A mapping between the hosts in the cluster and the set of APP_IDs on the host.
Sample data returned
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Guide to writing your own Sink
METRIC DATA STRUCTURE
Source location for common data structures module: https://github.com/apache/ambari/tree/trunk/ambari-metrics/ambari-metrics-common/
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