what factors the block size takes before creation?
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What is Writable & WritableComparable interface?
Did you ever built a production process in hadoop ? If yes then what was the process when your hadoop job fails due to any reason?
Rack awareness of Namenode?
what is difference between int and intwritable?
What is Hadoop?
What are the stable versions of Hadoop?
Whats is distributed cache in hadoop?
Explain what happens in textinformat ?
Can you explain how do ‘map’ and ‘reduce’ work?
How to change replication factor of files already stored in HDFS?
What is the heartbeat used for?
Mention what is the use of Context Object?
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