What is the NameNode port number?
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What is KeyValueTextInputFormat in Hadoop?
What kind of hardware is best for hadoop?
Define data cleansing?
What are the limitations of Hadoop?
Do we require two servers for the namenode and the datanodes?
What is Slot in Hadoop v1? Why was it removed from Hadoop v2?
Explain what is speculative execution?
What is the difference between namenode and datanode in hadoop?
What is the problem with small files in Hadoop?
Define a udf?
How Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?
What is the purpose of context object?
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