Is client the end user in HDFS?
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Define a task tracker?
What is Hadoop serialization?
What is the meaning of speculative execution in Hadoop? Why is it important?
Rack awareness of Namenode?
What problems can be addressed by using Zookeeper?
How to change Replication Factor For below cases ?
How many instances of a jobtracker run on hadoop cluster?
What stored in HDFS?
Explain why do we need hadoop?
What do you know about nlineoutputformat?
What is InputSplit and RecordReader?
What is NoSQL?
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