Why do you provide an example to not going further into it? It would have been very helpful if you explained the concrete shuffle and reduce step with the city sales.
i guess because that nonsensical one row example in the beginning to show "aggregation" of sales fell apart ... I literally got annoyed in the first one minute itself.
Once the mapped data has been shuffled, it can be reduced in parallel. Shuffling, as show on the video, moves data so that each reducer has the data that needs to work independently of the other reducers and therefore the reducers can work in parallel. Remember, MapReduce is actually Map -> Shuffle -> Reduce
Hey! nice video thanks for that! Can you maybe explain what the node is here (number of processors?)? And what is the difference between node and mapper?
Very well explained. Concise and easy to follow. Thanks!
Thanks for this video, Could be explained better.
@Francis Moshe yup, I have been watching on instaflixxer for months myself :D
@Francis Moshe Yea, have been using instaflixxer for months myself :)
@Francis Moshe yea, I have been watching on InstaFlixxer for months myself =)
Comment section scares me.
I'm waiting for the continuation))
Well done! Thx!
Why do you provide an example to not going further into it? It would have been very helpful if you explained the concrete shuffle and reduce step with the city sales.
i guess because that nonsensical one row example in the beginning to show "aggregation" of sales fell apart ... I literally got annoyed in the first one minute itself.
Once the mapped data has been shuffled, it can be reduced in parallel. Shuffling, as show on the video, moves data so that each reducer has the data that needs to work independently of the other reducers and therefore the reducers can work in parallel. Remember, MapReduce is actually Map -> Shuffle -> Reduce
Very nice explanation it's very helpful for me thank u 🤝
Thanks for the explanation
A very nice and crispy tutorial.. a really excellent one..
ideas are bulletproof
A very nice explanation and well presented with quality presentation materials.. thanks..
Hey! nice video thanks for that!
Can you maybe explain what the node is here (number of processors?)? And what is the difference between node and mapper?
Excellent... Example with drawing
That's not simple example.
How? What exactly did you not understand?
This is the Best Explanation.
👍🏼👍🏼👍🏼
Good one.But where are filtering the data for 2015.I do not see explanation for this in the video?
I cringe a little bit everytime you say amaze-on. It's Amazon.. like the rainforest. Otherwise nice video, well explained
nice video... well explained
This is really nice explanation for the concept
Did not get the concept. Not good for the desc of video.
Good explaination but... plz will you provide & explain mapreduce using Mongodb and its example
what the hell . such basic things are presented with such complexity and non technical ?
A lot of concepts these days are just over-complicated with fancy names, but when you look into them, they are very simple ideas.
that's not simple....
wordcounter
Thank you!! Really good explanation! :)
"Big Data Trunk" .. please change title of video to a "stupid video on many counts "
this video will not help
I didnt understand shit!!!!
Very confusing explanation. :(
Amayzon?
reduzers
Accent it is.
haters shut up