What is the communication channel between client and namenode/datanode?
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how can we change Replication Factor?
What is a checkpoint?
How to change Replication Factor For below cases ?
Can Hadoop be compared to NOSQL database like Cassandra?
What is Distributed Cache?
What happens in a textinputformat?
What are the two main components of ResourceManager?
What is a block and block scanner in HDFS?
What does /etc /init.d do?
How does master slave architecture in the hadoop?
Explain InputFormat?
Who invented hadoop?