Apache Kafka Crash Course | What is Kafka?

In this video, we delve into the fascinating world of Kafka, an open-source distributed event streaming platform. Join us as we explore the fundamental concepts and components of Kafka, including Kafka Topics, Message Partitions, and Consumer Groups.
Throughout the video, we will comprehensively understand Kafka's architecture and its significance in modern data-driven applications. Whether you're a beginner or already familiar with Kafka, there's something valuable for everyone in this discussion.
But that's not all! We believe in learning by doing, so we'll also walk you through a hands-on coding example using Node.js. By the end of this tutorial, you'll have a practical understanding of how to implement Kafka in your Node.js projects.
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Timestamps
00:00 Kafka Introduction
00:18 Problem Statement
13:15 How Kafka Solves the Problem
22:30 Architecture of Kafka
37:35 Consumer Groups in Kafka
44:42 Kafka with Node.js
Video Titles
► What is Kafka?
► Why do we need Kafka?
► Kafka Crash Course
► Mastering Kafka
► Kafka Nodejs Tutorial
Hashtags
#Kafka #RealTimeDataStreaming #nodejs #EventStreaming #DistributedSystems #BigData #DataStreaming #Nodejs #CodingTutorial #Developer #SoftwareEngineering #TechnologyExplained #DataProcessing #ScalableApplications #ConsumerGroups #MessagePartitions #DataDrivenApplications #OpenSource #Programming

[@SaptadeepDutta_Ex-Xerox]

Great Work. Keep it up. Thanks. Saptadeep.

[@piyushgargdev]

Thank you so much, highly appreciated 😀🙌

[@SurajSingh-lu8ei]

brooo, this is crazy donation

[@salman1098]

Sir send me some money also

[@mohammedaltaf4316]

​@@salman1098😂😂😂

[@secularguy________]

Bhai mne do din se khana nhi khaya hai 200 rupye krdo

[@aRookieProgrammer]

I have watched the full video from starting to end and enjoyed it. Its amazing to see how clearly you understand the concept and your command on node syntax 🎉

[@tusharsnn]

Lemme try: Kafka is a distributed message queue, generally used to decouple micro services where one api produces some data, and many others consumes it. Simple. I don't know why he confused people with DB and Kafka. Kafka is really a queue, you only read data sequentially. Kafka CAN hold data for an infinite period if you want. But it's not made for 'querying' data, instead, it holds the data temporarily so that the producer api don't need to wait for the consumer api to 'read' this data, it can simply dump the data onto the queue and let consumer api read whenever it finds time for it. If you're even a little confused between Kafka and a DB, this guy is to blame for that.

[@NileshAkhade]

KafkaStreams and ksqldb, built on top of kafka. But yes you are right!

[@bhuvneshsaini93]

He is right, he is telling the working of kafka. It's seems that you only uses the technology not understand there working.

[@arvindersingh9588]

When he tried to give definition of throughput, I knew it's time to move to some other video. Bro just keep on repeating zomato uber example multiple times.

[@BANANAS2011]

I assume you would have better videos on KZbin for explaining Kafka, if you are blaming him for confusing others. If not, then appreciate his efforts for teaching for free,

[@rahulkumarmaity7497]

​@@BANANAS2011 Appreciate efforts who give will give you alcohol when thirsty? Why are you braindead?

[@huuks527]

Piyush, I am Usman from Pakistan and I really love your videos, The way to tell things from very basic and use drawings for visualizing things and clarity, it's literally just amazing and easy to follow. Thank you so much for such valuable content. Lots of love from Pakistan to you💖

[@danielmarkj]

In an Iron Man movie, Kafka could have been useful in a scene where Tony Stark (Iron Man) needs to process and manage a large volume of real-time data or communications. Here's a hypothetical scenario where Kafka could play a role: Scene: Tony Stark is in his high-tech lab, and he's remotely controlling his Iron Man suit, which is deployed in a distant location to handle a crisis. He needs to receive and process real-time data from various sensors on the suit, such as vital signs, telemetry data, and external environmental data, while also receiving live video feeds. How Kafka could be useful: 1. **Real-time Data Ingestion**: Kafka could be used to ingest data from these sensors and video feeds in real-time. Each type of data (vital signs, telemetry, video) could be treated as a separate Kafka topic. 2. **Data Processing**: Tony needs to process this data for real-time decision-making. Kafka Streams, a component of Kafka, could be used to perform real-time data processing, such as analyzing vital signs for signs of distress, stabilizing the suit's functions, and identifying threats in the video feed. 3. **Reliability**: In a high-stakes situation like this, Kafka's reliability ensures that no data is lost. If there are network interruptions or delays, Kafka can buffer and replay messages, ensuring that Tony has access to all the critical data. 4. **Scalability**: If the crisis intensifies and more data needs to be processed, Kafka can scale horizontally by adding more Kafka brokers, allowing Tony to handle the increased data flow without performance issues. 5. **Monitoring**: Kafka provides extensive monitoring capabilities, which could be depicted in the movie as Tony monitoring the health of the data pipeline in real-time, ensuring that he has a clear view of the suit's status. In this scenario, Kafka would enable Tony Stark to efficiently manage and respond to real-time data, enhancing his ability to control the Iron Man suit and handle the crisis effectively. It would add a layer of realism to the technological aspects of the movie.

[@raman1911]

Team Iron Man!!!

[@ashishkandpal7107]

Please mark this to @marvel as they need this data :0

[@DevMRaza]

The Way @Piyush is teaching is amazing. I just opened video to over through but ended up watching it completely. I'm working as Sr. Software Engineer and can say that this is bater then many paid videos. Thanks Man.

[@48_subhambanerjee22]

Bro.. this guy is crazyyyyyyyyy. This was way better than other code videos i watched

[@learnsomething...1581]

Bhai I rarely comment for KZbin video.. I am mechanical engineer by profession & recently got inspired to learn Data Engineering stack... And you made my day..what a great video to understand Kafka fundamentals... God bless you man with lots of happiness and success... You are great teacher.... Would love to see your crash course as first crash course for anything new learning i will be planning for in future....

[@msrajawat298]

I've watched the full video through to the finish and really enjoyed it. Your command of node syntax and your obvious comprehension of the subject are outstanding. 🎉

[@sunilmankoje3331]

The way you explained made me to learn this topic *Kafka* which I never heard before I scrolled this random video …. hats off to you for teaching like a friend....👏🙌👏

[@SuvoHossain]

although I do not know node.js but the way you taught kafka its simply awesome.

[@sudeepkulkarni7593]

Thank you so much bro, you really don't know how much help you have made by explaining this concept so easily 🙏🙏

[@dheerajbisht4096]

TLDW; Databases have low throughput while Kafka has high throughput but Databases have better storage compared to Kafka. Kafka is a Messaging service that can act as both a Message Queue and Pub-Sub pattern produced by Linkedin and Apache. Kafka requires zookeeper (another service from Apache) for load balancing. Kafka can have topics and the topics can be further stored in partition. One consumer can consume to multiple topics and the partition is self balanced by kafka but one partition can't be consumed by multiple consumers this way Kafka act as message queue. In order to act as Pub-Sub, Kafka has a concept of Group, Consumers in same groups that subscribed to a topic gets the topic from partition, self balanced by Kafka but all the groups also get all the Partition, this way it act as Pub-Sub as well. Kafka has admin which has task for creating topics and partition etc, producers that produces data, consumer that consumes data.

[@BABA-oi2cl]

It came randomly to my recommendation and I clicked on it…before I had only heard of Kafka but you explained it so well. I don’t know if I’ll be using this stuff anytime soon but sure as hell won’t forget how it works ❤

[@krushnnabaviskar2170]

same

[@yashsolanki069]

Great job piyush on explaining the details both visually and with the code approach 💯 While getting the hang of kafka as we go further i started to get the question of how kafka does the message transfer and when you talked about queue and sna architecture approach it clicked the brain. It's the similar how amazon SNS and SQS services works and from that point things got a lot for relatable. I had a chance to work with pusher messaging service which had the similar pub/sub messaging architecture. This kafka session turned out to be really amazing. Looking forward for more of something like this in future.

[@PranavBhatt_er]

What a true sentence "Half knowledge is very dangerous". Good work buddy. Sweetly swallowing the bitter medicine.

[@saqibkhanz8417]

What a great explanation! Hats off to you, sir. I'm wondering why you have only 11K subscribers. You deserve millions!

[@krissh_the_dev]

Not many people interested in Kafka know Hindi, and not many people who know Hindi wants to know Kafka.

[@DanielSmith-hd9iq]

he is already at 49k in 2months

[@pankajkatiyar2665]

@@DanielSmith-hd9iq 60k when i joined

[@sandeep_khangar]

68k when I joined .. nice explanation

[@Agile691]

​​@@sandeep_khangar72k when I joined

[@uNIK908]

Great lecture….. in one hour you can easily visualise and learn all about kafka in and out. The best part of the video is when he is coding along with visualising what he is coding.

[@NilanjanH]

What a brilliant explanation! I wasn't familiar with Kafka before, and you explained it in layman's language superbly! Kudos to you. Keep creating videos like this!

[@user-vq1oq4sl5k]

This is the best kafka course I have watched on youtube

[@ankitaburman5406]

i so happy that i found your Channel , I was browsing through your channel and found you have created really good content on the things which are currently trending.Thank you ❤

[@ashokkumar-vi7or]

Really, you literally took me into the world of kafka. Seriously your explanation is superb.

[@ashwajitthukral9101]

Your visual way of teaching is too good, thanks mate

[@roshanchandel7929]

Was waiting for "Why kafka has such a high throughput" answer. Great explanation, thank you for the effort.

[@anilmaurya55]

I tried many youtube courses for kafka but your way of explaning is so great.. please keep the good work..

[@suchanachakrabarti6783]

All my Kafka concepts are finally clear today!

[@yashbhatnagar1505]

The way of explaining was extremely good, idk why your Channel is so underrated 💥

[@salman0ansari]

bro, you are the only Indian KZbinr explaining/teaching real world tech.

[@SandipBajwa]

Thank you for the hard work. DB throughput is low because of ACID properties which is not possible in case of Bulk Insert that is without redo/undo so there is a huge risk of data loss but in the cases of Junk data ( Facebook, discord, etc) you accept the risk. In case of financial transactions you need to come up with a strategy where Kafka when full storage and failures in database stops producing until consumer errors are fixed to avoid data loss.

[@mayanksgajjar]

You have explained it in very simpler way. Thanks to you man ☺

[@AmarjeetKumar-wt1hz]

Bro, you have a special talent to make difficult topics easy, it was my first kafka tutorial and i understand it well enough, thanks a lot ❤❤

[@mdalishanali3909]

agree

[@sheikhfajlayrabbi6070]

Totally agree ❤❤😥😥

[@HasanAli-vp6ci]

Got this channel randomly, you’re a gem ❤

[@anuraggupta1008]

It's great and depth knowledge about Kafka by piyush and he is putting (hard +smart)work to spread best knowledge......

[@ByYouTube2]

Yygv

[@ByYouTube2]

Yygvvvvv

[@HimanshuSingh-ek3mu]

I really learn from your vedios, can you please make vedios on the topics :- 1. design pattern in js 2. React with typescript 3. Typescript standalone course 4. Next js 5. Full stack application build from scratch 6. Asynchronous processing 7. Messages queue 8. Redis 10. Jenkins 11. Advance react js

[@caresbruh]

you don't need a course to learn typescript/react-typescript u just need to use it

[@aayushgupta6914]

For 6th and 7th, I would highly recommend Namaste Javascript playlist of Akshay Saini

[@ranjitshinde3763]

@@caresbruh bri i need job but dint have skill can u tell me how can i get skill can u tell me hindi you tube channel for fresher i want join so fast in fornend plz reply

[@pavanjain2178]

Amazingly simplified explanation, superb!

[@deb846]

Kya video banaya hai Bhai Saab..Top notch..1 hour full utilised..

[@lalitkishork73]

please also make a video on elastic stack why we need to use ?? what kind of problems it solves?

[@iampiyush100]

+1

[@Infinite_Mainak]

+1

[@tarunsankhla2328]

Genuinely one of the best crash course on youtube I have come across in a while Thank you Can you also have further video on such topics like data indexing and sharding

[@rupesh.saw04]

Great Work. You have provided the example which will be never forgotten.

[@mquanit]

Best video on kafka ever. Loved your simple explanation and demo with visualiztion.

[@prashantvishnoi2878]

Bro, Just watched 7 mins of your video and I have to come to the comment section to say that the language you are using is too simple and easy to understand. "Database fat Jayega" 😃. Perfect style to explain a core developer like me. Good Job.

[@ambujmittal6824]

@15:16 Just a correction. Kafka storage is not temporary. You can store data in kafka forever since Kafka stores memory on disk, and it is not an in-memory storage like Redis.

[@jitendersharma2962]

Yes but we can't rely on kafka storage for long term like database system

[@jitmanewtyagi565]

To sabse pehle ham smjhenge kafka hota kya. Ham dekhenge ki kafka kya hota hai. Ye boht important hai ki ham jaane ki kafka kya hota hai. Mai aapko btaunga ki kafka hota kya hai. We'll see what kafka is. :) Boht ache!

[@prashlovessamosa]

Thank you I am learning spring boot this is very helpful.

[@jayeshpatil8046]

BEST EXPLAINATION. I'm so sad that I have discovered this channel soo late.

[@MaxDevil1989]

One of the great crash course video on Kafka. Great work Piyush 🏆

[@eshantkumargola]

HI Piyush, This is indeed a crystal clear video about Apache Kafka. Thanks for sharing this wonderful knowledge for the IT developer fraternity. Thanks for this wonderful video and making the concept so clear.

[@officialismailshah]

Use this whole scenario with a database. Thanks in advance for this soundful knowledge....

[@ritikdwivedi5983]

I always wanted to learn kafka , Thank you so much to putting out such great content. You made me understand every topic where i was struggling Much Thanks 🙏

[@nil.4]

😮 the way you explain at 1.75x is so cool. I never knew what Kafka is now I feel like a Kafka expert.

[@nikhil182]

Great watch just before an interview!

[@chromaxetian496]

this channel is a gold mine.

[@tayyabachowdary1007]

Thanks for this content. For first time I attempted to listen to a texh content while I was busy with mundane work and got a wonderful idea and understanding of Kafka. Tomorrow morning I shall implement this and also read further on event driven architecture.🎉 Thanks again

[@KamalSingh-xg6pq]

crisp explanation. Great way describing each concept

[@awesomeshivamshorts]

Great appreciated to you, You are the one of my favourite you tubers. Keeps continue this type of video regularly. Thanks you so much.

[@annyd3406]

I have no words this video is amazing please make whole series for kaflka please...........

[@gamerthesuneater]

As former Zomato Employee we do get per second of live location of our deliver partner's and for customer we track him and also help them to get sooner through live mapping.

[@user-rd9xx9ng7h]

so basic explanation with basic examples which is really easy to understand

[@HimanshuSingh-ek3mu]

Really awesome vedio , good understanding , Hindi m h toh attention span bhi acha rha ! Great job

[@rushikeshtanpure9427]

its great video to help to improve the backend knowledge and I have one request to you please you will make video on node js with kafka on one big project THANK YOU SIR 👍👍

[@neutralengineer3873]

Love this stuff. ❤ Hey Piyush, on Friday i need to give a session on Kafka. Would you please any PPT or documents for this topic. If you have?

[@iamakashkumarram]

Thanks for this amazing course ❤

[@satishb9975]

Thank you very much for a great content and explanations on kafka, you made it very clear, and easy in understanding the topic.🙂❤✌

[@sourabhpunase873]

one of the best you tube channel found on you tube. you are doing great work bro ❤❤

[@rajanwalia4tech]

You explained it very easily Piyush, Keep pushing such content 👍

[@vkrisshna45]

This is one of the best tutorial on Kafka, Thank you :)

[@vshlmlvliveit]

Super interesting and one of the simplest and consumable explanation. 👏

[@AYUSHSINGH-py1pp]

Amazing crash course!! Loved it!!

[@MuhammadAyaz-gp7xd]

Crystal Clear. Thank you so much.

[@premad6139]

Really use full video, please explain more on how 1. offset values and records works , 2. if you can explain how data saves in partition will be more helpful

[@rabindrajoshi9258]

This is the first video I discovered in this channel. Maja aa gaya bhai. Thank You!

[@lanslord11]

you are best brother , keep going and yeah I would also love to see video on elastic search

[@MrDeepakmp]

EXCELLANT CONTENT, THE BEST EXPLAINATION I HAVE SEEN ON KAFKA.

[@manishkeer8338]

amazing! best crash course video on kafka.

[@rajukadel1007]

Please continue providing such valuable information ❤

[@user-mg8ol5gp1j]

Excellent, mind blowing explanation THE BEST you can say

[@bilalahmedkhan5876]

This was a great video! thanks for sharing.

[@pnig12117]

One of the greatest videos I have ever watched!!!! Thanks Piyush bhai

[@adityak5193]

Random recommendation resulted into Kafka learning. Thank you❣

[@abhishekashware4781]

Perfect explanation. Also Liked the way of presentation starting with real life problem and ending with actual implementation of it.❤❤

[@snehit0123]

Very Clear and Concise explanation! The way you dumb down complex topics for your audience is remarkable! Keep up the good work :)

[@gowrimanohari6682]

Thank you for the crisp explanation!😊

[@vaibhavshukla9346]

Mazza Agaya, Kaffi Samay Baad Itne Achi Technical Explanation Video Dekha. Yo have a teaching style similar to Brad Traverse.

[@sahirbhat9297]

I really appreciate ur work the way u r teaching is absolutely fantastic especially theory part But when practical part is not good as theory … my perception could b wrong … I think kafkaaa part u have to make one more precise video especially for python coding part

[@FrustratedEngineer_]

Great Explaination! Thanks a lot!

[@mohitmotwani9256]

Great work. Understood everybit. One of the best crash courses. Thanks

[@adityaruhela5761]

It was a very good explanation of Kafka, I loved it. I am goind to implement it to my blogging website that I created.

[@ravikanhreddymanik7767]

Great explanation brother. Thank you a lot!!!

[@luciferkhiljie]

So basically what I understood is Kafka is a funnel which is used to pour fluids from a big container into a small container with bottle-neck.

[@shubhamgupta-bl1tr]

Yes I m looking for so long...please build one project with node js with kafka

[@sushilingole8448]

Thank you soo much for such a great explanation, very crisp n clear it is. 🤝❤️

[@ahmarajeel]

Thank you so much for the great explanation!

[@myblog8751]

Some more examples are Live chat section in edtech apps like unacademy,physics wala etc Indian railway websites also have live location sharing.

[@morningmotivation4745]

Wonderful explanation.. Loved the way you explained it minutely..Thanks for the amazing video..!!

[@AmeyChittar]

Superb explanations Piyush. Thank you so much❤

[@mohammadmaaz7474]

Excellent delivery of the concept thanks man!

[@FahadMalikNorway]

You are a really good teacher. Hats off

[@shivamgoel0897]

Very nice explanation! You made the concepts very simple to understand

[@coderwork8335]

bhai, kya explanation dete ho yaar, maza aagaya

[@vrushalrt]

Layer by layer explaination is finest 👌keep it up 👍