What exactly is hadoop?
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Can Apache Kafka be used without Zookeeper?
Can the balancer be run while Hadoop is in use?
What is Distributed Cache?
How to enable/configure the compression of map output data in hadoop?
Which files are used by the startup and shutdown commands?
What if rack 2 and datanode fails?
What is the difference between traditional RDBMS and Hadoop?
How many instances of JobTracker can run on a Hadoop Cluser?
Explain the master class and the output class do?
when hadoop enter in safe mode?
What is speculative execution in Hadoop?
How many JVMs run on a slave node?
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