-what happens under the hood
jamal sasha 2012-12-20, 00:23
I am trying to dig deep on the workings of pig libraries.
So can someone help me understand what happens when someone does:
in = load 'in.txt' using PigStorage(',') as (foo:int);
what happens behind the scenes..
How does it executes map reduce jobs..
where is this "load" defined in the pig code base .
I am just trying to see how the backend code is implemented where this two
lines of code translates into the map reduce code.
Jonathan Coveney 2012-12-20, 00:35