What is inputformat in hadoop?
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what should be the ideal replication factor in hadoop?
What is high availability in hadoop?
What is speculative execution in Hadoop?
Does google use hadoop?
Explain the features of stand alone (local) mode?
What are the limitations of importing RDBMS tables into Hcatalog directly?
What are the steps to submit a Hadoop job?
What is MapFile?
What is HDFS block size and what did you chose in your project?
What is IdentityMapper?
Data Engineer Given a list of followers in the format:123, 345234, 678345, 123…Where column one is the ID of the follower and column two is the ID of the followee. Find all mutual following pairs (the pair 123, 345 in the example above). How would you use Map/Reduce to solve the problem when the list does not fit in memory?
What does the command mapred.job.tracker do?