What is Safemode in Apache Hadoop?
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What is the difference between a Hadoop and Relational Database and Nosql?
What are the network requirements for using hadoop?
How to come out of the insert mode?
Explain the features of pseudo mode?
Which one is default InputFormat in Hadoop ?
How many instances of tasktracker run on a hadoop cluster?
What is a 'block' in HDFS?
On what basis Namenode will decide which datanode to write on?
What platform and java version are required to run hadoop?
What will you do when NameNode is down?
Why the name ‘hadoop’?
What is the use of Combiner?
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