Map Reduce explained with example | System Design

In this video I explain the basics of Map Reduce model, an important concept for any software engineer to be aware of. This will help you identify and apply Map Reduce related questions during your System Design Interviews
Map Reduce Paper: static.googleusercontent.com/...
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[@shriyaananthanarayanan]

thank you so much, today i went to my first day of internship as a 15 year old girl and didn't get the complicated words they explained me but u thought me in a way I will never forget in my whole life. thank you so much!!!!

[@chanwoopark5397]

where in the world are 15-year olds doing internships that involve map-reduce?? that's wild

[@jasonwang-wg8wu]

15 is the new 18 (pause)@@chanwoopark5397

[@backslash8874]

15 year olds, doing internships, and dealing with MapReduce and distributed systems. My 25 years old senior software engineer @$* not being able to comprehend the situation. Which world you live in mah lil sister?

[@shriyaananthanarayanan]

@@chanwoopark5397 I did the internship in my brothers company so... It wasn't that hard for me to get in...

[@shriyaananthanarayanan]

@@backslash8874 brotha, it's just like 3 months internship wasn't that hard, my brother is the owner of the company so he just accepted to let me in. I was told to do a couple of work and understand d the concept first, I tried my best to go to internship coz I wanna become a senior like you. And see, that's the difference, I will introduce myself as a intern not a senior like you. 🤗🤗 I really admire you guys,🤗🤗 I waiting to finish my education and I wanna work! Infact I'm kinda girl who watches "the office"😂😂

[@fishfanaticgokul4758]

Most excited video of 2023 for an diagrammatic representation and clear cut explanation ❤❤❤ really great. College staff wants people like you to teach.

[@user-cn1vt9qo9e]

The professors we want in Indian engineering colleges ❤

[@nanaarhin5567]

The most complex name explained with the most simplest scenario. I understand this better now

[@mikedelta658]

What a wonderful explanation!

[@ethanxie2737]

finally i know what is MapReduce, thanks !

[@abasahebbhingardeve5464]

Very clear and understanding explanation.

[@p33yush]

Thank you for awesome explanation!

[@johnnyc5467]

This is a great video. Thank you!

[@Sanjaysview]

What a quality sir, hand off

[@kunalsoni7681]

this video made a complex topic in a very simpler way ♥️☺️💯

[@user-yk9rr5ir7v]

Thank you for this! I have a data engineering interview tomorrow and the example really helped me understand the concept well enough to be able to explain it myself if I am asked.

[@ByteMonk]

my latest video on data platform might also help you prepare for the interview, all the best!

[@aymanelouazzani4245]

thank you so much for this sample , beautiful and benefiting explanation

[@samathaea8264]

Very helpful. thank you:)

[@nikhilpathak1948]

I watched many videos but your's 🔥🔥. I understood, thankyou!! 👏😊

[@zabinoori49]

nice explanition with all the details thanks bro 💕💕

[@ilhemwalker9145]

thank you so much it's clear and well explained you answered all my whys and whats

[@thedragonforce2210]

i lost my jaw when i saw this video , bravo , nicely done men 👍

[@dhaneshpt8641]

Super presentation.. Thank you sir.

[@HLearningFun]

very nice and informative and detailed. thanks.

[@dimon_z]

Bro you are awesome 👍

[@NassimDAIKH]

Excellent video I was looking for a simple explanation like this

[@emmanuelyaro8322]

thank you so much, very clear

[@landocodes]

Amazing explanation!

[@avasingh764]

His Voice ❤❤️🔥🔥

[@codernew3191]

This is what I wanted

[@cynthiabock9104]

Thank you for this super helpful video! What I have not understood yet is, how can I turn the process back? For example, if I am looking at the output file, how do I know in how many of those input files has the word 'apple' been? From what I understood, it could have been twice in the first (or second) file or once in each.

[@vaibhavahuja4001]

great vid. thanks

[@samerrawashdeh1351]

Thanks!

[@yashthakur5712]

Excellent explanation

[@Veigaburame]

the example is pretty straight forward

[@nizarhabib4352]

Very nice explanation

[@teddybear0116]

Great video! Now do spark!

[@shaikhuzma786]

Tqsm ☺️

[@jasonwang-wg8wu]

@ByteMonk dank video, very clear and concise but I've got a question: at 8:20 you say we're tasked with finding all the videos with a certain number of likes. Do we really need to go through ALL of the metadata if we're just looking for the condition "number of likes >= [some amount]"??

[@hermanheinz33]

very good video

[@abhinavkrishna449]

Love you broo

[@siyaram2855]

🔥

[@sawdawyah]

Thanx 😊

[@neostark4564]

His voice 🗿

[@ByteMonk]

I am assuming that's a compliment :)

[@JayaramB-kw6rs]

​@@ByteMonkyes it is😅

[@kartikraj1779]

@@ByteMonknah man, although you tried so we appreciate it

[@mohsenkheirabadi8211]

I can't focus 😂

[@InvincibleMan99]

Amazing explanation sir. Would like to know how FB store likes and comments. Suppose user from India likes a video, and another user from the USA likes the same video, are they stored in same place or in a sharded db (country wise), would like to know your perspective

[@lucaterraneo7274]

nice!

[@ByteMonk]

Thanks!

[@flameyt3721]

Failure nodes in classic mapreduce

[@sweethasridharan4782]

Damn you're voice🤌🏼

[@complexity5545]

Is hadoop dead? Who is still using that.

[@ByteMonk]

Hadoop, in its original form, has reached a mature stage. It's less of a buzzword and more of a foundational technology upon which other systems are built. Many companies heavily invested in Hadoop infrastructure during its peak years and still rely on it. For example Yahoo! likely still has large-scale Hadoop systems for storage and batch processing. Facebook has also Built a huge Hadoop infrastructure for data warehousing and analytics. While they've moved a lot of processing to newer systems, legacy Hadoop clusters probably remain. These companies probably don't use Hadoop in exactly the same way they did during its peak. They likely have layered newer technologies like Spark or cloud-based analytics on top of their Hadoop foundations.

[@TheBoDuddly]

Excellent explanation!! Thank you.