What is the heartbeat used for?
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How can you connect an application
What are the functionalities of jobtracker?
What are the two main parts of the hadoop framework?
How many instances of a jobtracker run on hadoop cluster?
What is the meaning of the term "non-DFS used" in Hadoop web-console?
Whats is distributed cache in hadoop?
Is fs.mapr.working.dir a single directory?
What are the hadoop's three configuration files?
What is Input Split in hadoop?
What is Distributed Cache?
What is the jobtracker?
What if rack 2 and datanode fails?
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