What are the tools used in big data?
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Why is Data Block size set to 128 MB in Hadoop?
How does job tracker schedule a job for the task tracker?
What is Mapper in Hadoop?
What kind of hardware is best for hadoop?
What is a namenode?
What is the procedure for namenode recovery?
Explain small file problem in hadoop
Is it possible to provide multiple input to Hadoop? If yes then how can you give multiple directories as input to the Hadoop job?
How do you overwrite replication factor?
What are some typical functions of Job Tracker?
What are the features of Pseudo mode?
What is heartbeat in hadoop?
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