what are Task Tracker and Job Tracker?
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Can the balancer be run while Hadoop is in use?
How can we check whether namenode is working or not?
Define streaming access?
How to enable/configure the compression of map output data in hadoop?
Mention what are the data components used by Hadoop?
What hadoop does in safe mode?
What do you understand from Node redundancy and is it exist in hadoop cluster?
How to change from su to cloudera?
If a data Node is full how it's identified?
What is the use of combiners in the hadoop framework?
Is it possible to provide multiple inputs to hadoop? If yes, explain.
How can we look for the namenode in the browser?