What is a namenode? How many instances of namenode run on a hadoop cluster?
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What is output format in hadoop?
what are the steps involved in commissioning adding
Is hadoop the future?
What are different hdfs dfs shell commands to perform copy operation?
What is the full form of fsck?
What is the default replication factor?
In cloudera there is already a cluster, but if I want to form a cluster on ubuntu can we do it?
Is secondary namenode a substitute to the namenode?
what are the steps involved in decommissioning removing
Define fault tolerance?
what is difference between int and intwritable?
What is difference between regular file system and HDFS?
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