How to use Apache Zookeeper command line interface?
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Explain the features of stand alone (local) mode?
What is the jobtracker and what it performs in a hadoop cluster?
In which location Name Node stores its Metadata and why?
What is the main purpose of HDFS fsck command?
How to exit the vi editor?
What are the port numbers of namenode, job tracker and task tracker?
What do you mean by taskinstance?
How do you define "block" in HDFS?
when hadoop enter in safe mode?
What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?
On what basis Namenode will decide which datanode to write on?
What is version-id mismatch error in hadoop?
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