Big Data – Page 3 – Pandian Teck Talk

MapReduce Job Execution Process – Reduce Function

Hi Hadoopers, We are in 6th circle today, which is the reducer function. A job is submitted by the user, […]

Pandian Ramaiah / September 30, 2016

Hi Hadoopers, Mappers run on individual machines and prepare intermediate results. They accept splits as inputs. Reducer accepts partition of […]

Pandian Ramaiah / September 29, 2016

Hi Hadoopers, The user had submitted his job. He has permissions. We have slots in the cluster. Job setup is […]

Pandian Ramaiah / September 28, 2016

Hi Hadoopers, We shall talk about 3rd circle today, as we talk about Job submission and Job initialilzation already. Scheduling […]

Pandian Ramaiah / September 27, 2016

Hi Hadoopers, I wrote about the first step of the MR Job execution – Job Submission in my earlier post. […]

Pandian Ramaiah / September 26, 2016

Hi Hadoopers, After publishing many posts about MapReduce code, we’ll see the MR internals like, how the MR job is […]

Pandian Ramaiah / September 25, 2016

Hi Hadoopers, Here is the next interesting post. We already know (at least, we assume we already!) junit is the […]

Pandian Ramaiah / September 24, 2016

Hi Hadoopers, This is a nasty exception which kicked off my reducer task, which updates my MySQL table with the […]

Pandian Ramaiah / September 24, 2016

Hi Hadoopers, Unfortunately I couldn’t post on time, as I’ve been hit with flu. Here is the post for today. […]

Pandian Ramaiah / September 23, 2016

Hi hadoopers, Previously I have used a custom class for key. Pls check Lab 08 – MapReduce using custom class […]