What is the heartbeat used for?
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What is hadoop framework?
Define a commodity hardware? Does commodity hardware include ram?
What are the different types of Znodes?
How to restart Namenode?
Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?
what is meaning Replication factor?
What is the difference between a Hadoop and Relational Database and Nosql?
What happens in a textinputformat?
Why is hadoop faster?
Why do we use Hadoop?
What happens to a namenode, when job tracker is down?
What is the main purpose of HDFS fsck command?
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