What is a udf?
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Mention what does the text input format do?
How would you check whether your NameNode is working or not?
What is the hadoop-core configuration?
What is TextInputFormat in Hadoop?
What does rack awareness mean?
What is the difference between namenode and datanode in hadoop?
Which scala library is used for functional programming?
In hadoop_pid_dir, what does pid stands for?
What is streaming in Hadoop?
Can you explain indexing?
What is the command to change the replication factor ?
Explain the common input formats in hadoop?
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