What is Mapper in Map Reduce?

Sharad Jaiswal
Sharad Jaiswal

Posted On: Feb 22, 2018

 

Mapper is the client characterize program, which controls the info split in (key, value) combines according to the code design. Regularly Mapper is the base class, which needs to reach out by a software engineer to compose their logic according to the requirement. While broadening mapper, the programmer needs to specify information and output type under mapper class arguments.

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