How to enable recycle bin in hadoop?
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Can you explain how do ‘map’ and ‘reduce’ work?
What is difference between split and block in hadoop?
What is partioner in hadoop? Where does it run,mapper or reducer?
What is safe mode in Hadoop?
What are the different methods to run Spark over Apache Hadoop?
How can we look for the namenode in the browser?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?
What are the hadoop's three configuration files?
What is inputformat in hadoop?
In which location Name Node stores its Metadata and why?
What are the port numbers of namenode, job tracker and task tracker?