What is speculative execution in Hadoop?
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What is the jobtracker?
Which one is default InputFormat in Hadoop ?
Can we do online transactions(oltp) using hadoop?
What are the main components of a Hadoop Application?
What happens to a namenode, when job tracker is down?
what is the typical block size of an HDFS block?
what is a datanode?
How does master slave architecture in the hadoop?
What are the four characteristics of Big Data?
What are the steps to submit a Hadoop job?
Explain the Job OutputFormat?
What is Hadoop Custom partitioner ?