What is a speculative execution in Apache Hadoop MapReduce?
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What is the jobtracker and what it performs in a hadoop cluster?
What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?
Does hadoop always require digital data to process?
What is the difference between traditional RDBMS and Hadoop?
Explain the wordcount implementation via hadoop framework ?
What are the two main components of ResourceManager?
Explain how input and output data format of the hadoop framework?
what is meaning Replication factor?
Can Hadoop be compared to NOSQL database like Cassandra?
How would you tackle counting words in several text documents?
What is Hadoop?
What is DistributedCache and its purpose?