What is InputSplit and RecordReader?
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Can Apache Kafka be used without Zookeeper?
How will you make changes to the default configuration files?
In which location Name Node stores its Metadata and why?
What stored in HDFS?
How to change from su to cloudera?
what are Task Tracker and Job Tracker?
Who is a 'user' in HDFS?
what is a datanode?
What is Rack Awareness in Apache Hadoop?
What is the difference between rdbms and hadoop?
How do you define "block" in HDFS?
What is Apache Hadoop? Why is Hadoop essential for every Big Data application?
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