Spark Data Frame Internals | Map Reduce Vs Spark RDD vs Spark Dataframe | Look inside the Dataframe

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Sir, I am big follower of you, and am following you for long time, no one can explain the concepts like you.

rajkiran
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Great Session, It helped to understand the key difference between MapReduce & Spark. Thanks.

sysdatas
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Please post video more often..very nice explanation

omkarm
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While reading the file why 2 jobs were created? Can some one help to understand?
My assumption is, The file which we are going to read having total 9 blocks so that is why we total have 9 partitions and these process involved with total 9 tasks So here how number of jobs will decide?
May no stages can be 1 beacause reading of the file may not be wider so it will be one stage for each job.

KRISHNAPRASAD-xytr
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Many people complained ur course on udemy is nt for beginners, , y is that so?

vishalmane