Apache Kafka Crash Course
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- čas přidán 1. 06. 2024
- Apache Kafka is a distributed stream processing software developed by LinkedIn and written in Scala and Java.
Chapters
0:00 Intro
2:32 Kafka Broker
5:39 Kafka Producer
7:11 Kafka Consumer
8:34 Kafka Partitions
12:50 Queue vs Pub-Sub
16:47 Consumer Group
23:06 ZooKeeper
29:45 Coding Example
1:02:48 Kafka Pros-Cons
1:17:00 Summary
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In this video I want to focus on the basics of Kafka, talk about how it works give finally spin up a Kafka cluster and write a producer and a consumer.
Kafka Components
_ producer
_consumer
_topic
_partition
How Kafka works
Example ( Ride sharing )
Spin Kafka cluster
Write a producer
Write a consumer
Kafka Applications
Pros and Cons
Source Code
github.com/hnasr/javascript_p...
Docker commands spin up kafka
//if you ever mess up or you want to start fresh just stop and remove the containers and rerun the command
docker stop zookeeper kafka
docker rm zookeeper kafka
docker run --name zookeeper -p 2181:2181 -d zookeeper
docker run -p 9092:9092 --name kafka -e KAFKA_ZOOKEEPER_CONNECT=husseinmac:2181 -e KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://husseinmac:9092 -e KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR=1 -d confluentinc/cp-kafka
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Resources
KIP 500 (Remove Zookeeper)
cwiki.apache.org/confluence/d...
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Stay Awesome,
Hussein - Věda a technologie
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I love it and the way it’s presented! Will announce on LinkedIn when I get my cert. Thanjs for putting this together!
27:28 answer:
Every broker on a Kafka cluster is also named a Bootstrap Server. All brokers have the metadata required for the clients (producer or consumer) to discover brokers. When a client connects to one of the brokers (which are already configured as bootstrap servers in the Kafka configuration) it makes a "metadata request". The response includes information about topics, partitions, leader brokers, etc. Once the client gets this info, then - in the case of a producer- it makes the write request directly to the leader broker for that specific partition.
Thanks for the explanation
This should be pinned. Thank you!
if all the brokers maintain this metadata then what's the role of zookeeper.
@@HarshJain-lk8cw The use of zookeeper is that only one leader is there for a partition at any given time by using some kind of lock registry.
This should be pinned. Thanks!
This was an awesome tutorial. You're incredibly good at explaining things and keeping people engaged when consuming so much information.
One of the best tutorials i’ve seen. Great class and very funny. Subscribed and waiting for more content!
I just wanted to express my heartfelt appreciation for the amazing Kafka crash course, Your dedication to simplifying complex topics shines through, and I can't thank you enough for making Kafka so much easier to understand.
Not only the content, but the way you say it, and your enthusiasm, is something else. You sir deserve all the best, because you are, with no doubt, in the better's shelf..
Just started watching and already loving it. I wish you a happy new year and hoping to see more great content like this.
i had to deal with Kafka in one of my project, so searched for some tutorials, As soon as I saw that you have made a video on this, i had a sense of relief that i dont have to worry about the resource atleast. Thanks for all your efforts man.
Sweeeeet... did not feel like a tutorial, but like a friendly chat between deeply connected friends, every word makes clear sense. Kept me engaged every second till the end, yes I made to the end. Well done Sire... 👏👏👏
Great tutorial as always. Literally a crash course fit into about an hour. Has everything to get started with kafka, especially because of the hands on.
Dude, I made it to the End. You kept us engaged throughout. I have soo much to learn about Comp Sci!
Another perfect tutorial. Everything is explained very nicely. Thanks for making Kafka easy to understand in this tutorial.
Atif Ali thanks Atif for your support! Happy I could make such complex topic easy to absorb.. still I didnt cover all what kafka has to offer! Cheers
Amazing tutorial! Really find the topic interesting and easy to understand broker, producer, consumer etc.. Thanks for coming up with a great video. Hope we will get to see more on this.
Amazing, Hussein! Thanks for the overview of Kafka. I've always been a bit afraid of this beast, but now I understand at least the basics
I always got demotivated by the complexity I experienced when I tried to learn this on my own but this one is a gem. I know it might have taken a lot of learning and experience for you to explains this in a simple manner Nevertheless thank you for sharing your knowledge!
Thank you Jithin! And Remember to ask in the community to get access to the slides if you would like to since you are a member❤️
thank you, this video was a great intro to understand what kafka is and how it works for a complete noob :)
here is a docker-compose.yml that starts your two ontainers in case anybody wants to use that to go through your examples. basically i just took your two lines and converted them to compose.
version: '3'
services:
zookeeper:
image: zookeeper
restart: always
ports:
- "2181:2181"
kafka:
image: confluentinc/cp-kafka
restart: always
ports:
- "9092:9092"
environment:
KAFKA_ZOOKEEPER_CONNECT: 'zookeeper:2181'
KAFKA_ADVERTISED_LISTENERS: 'PLAINTEXT://localhost:9092'
KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: '1'
another addon: create a copy of consumer.js and edit the group name.. start that in parallel with the two consumer.js processes which then demonstrates pub sub behavior.
i write all this one and a half hour after not even knowing what the difference between a queue and pub sub is and what kafka and zookeeper are :) .. this just shows how good this tutorial was :)
The explanation and illustration is clear and concise! Thanks for the comprehensive tutorial!
Couldn't learn kafka better in such a short time. Thanks Hussein.
This course is great because of the example. It's much better than some videos in which only some introductions are represented.
You explain by answering all the questions people get when learning a topic. Most tutorials just explain concepts.
I made it to the end. :P Thank you so much for the amazing content Hussein.
this is the only tutorial i found that go in the depth and details of a pro should know , and i can compare Kafka with other messaging system like JMS and MQ. Thanks so much for sharing👍👏🙏
Excellent practical explanation of Kafka, I wish every technical tutorial was as easy as this. Thumbs up!
This is well detailed even for a beginner, I completely understand whats going on. Brilliant content.
Amazing video! You have the talent to explain the complicated stuff really clearly😊
I rarely comment on videos but this was genuinely one of the best computer science tutorials I've ever seen!
Thank you Anish for taking the time to write this appreciate you!
bro your tone when explaining these videos are so good. Didn't even feel like someone was teacahing me. It was as if a friend was talking to me lol. Good job man. Your excitement is intoxicating. :)
This is the BEST educational channel!!! Bravo!
Your skillset is brilliant, amazing and fantastic. Thank you so much!
I just watched your RabbitMQ crash course and at the end of the video you mention how Kafka better at some point, then I bumped into this great video. Very clear explanation, love your video!
Luqman S thanks Luqman! Each software its use cases, I think RabbitMQ Is trying to be more than it really is (a message queue) where as kafka was designed to be a pub/sub and a message queue. If your app needs a queue and a pub/sub (or maybe streaming) than Kafka . If you just need a queue RabbitMQ is the way to go and kafka will be an overkill I think..
I would even consider zeromq as a lightweight mq..
Good luck!
made it to end. Amazing video. you made Kafka look so simple, and the best part-> you showed a code demo. clap. clap.
I made it to the end. Followed every step and it worked nicely. Thank you for the effort... really helpful
I made it to the end. Excellent. I don’t remember which video previously I saw was so long MD not boring at all. In fact you made it so interesting. May Allah (God) guide and bless you.
Very nice tutorial. Got a clear understanding of Kafka, especially the part of queue, pub sub, very helpful! Thank you so much!
Watched this video in one session, also applied the practice on my machine, what a great content you are creating Hussien, a must rewatch as always 😉
Thank you for this, don't know how I missed it
Great video, thanks for making it. Love your accent! You're very easy to understand, follow, and your excitement is fantastic!
vbrtrmn glad to know thank you! Lots of people have trouble with my accent glad you like it!
Really amazing!!! So many concepts explained in an easy and interesting way. Please keep up the great work.
made it to the end, and every detail was fully explained thanks.
I really appreciate you from my deep of heart for explaining such complex concepts in super simple way, Excellent :)
I made it to the End! Thank you for that video, I can now say I understand Kafka a lot better than 1 hour ago :)
Man, you are the best, thanks a lot for creating such valuable content for free
Amazing explanation Hussein. Every single bit of your lecture is fully understandable. You made difficult thing easy with practical example. You rocked! Good Luck.
Made it to the end! Awesome video Hussein :)
Made it to the end! Yay! Nice video Hussein!
You are a hero, Hussein. I spent two afternoons with you on this tutorial and it was an absolute pleasure. Thank you!
Glad you enjoyed it ❤️
made it to the end 🤟. It was a very good explanation with great clarity. Really Appreciate your work! Thanks a lot 🙏
Great explanation and overview over the possibilities of Kafka! Looks like a cool technology!
This is explained simply and perfectly. Thank you for posting this.
This is a great video to understand what Kafka is and how it works, very well explained!
By far the best introduction video to Kafka I have seen. Great examples and nice build up to demos that puts theory into practice.
Hans-Jacob Melby thanks Hans!
@@hnasr One question though.. Shouldn`t the consumer allways get all messages in the topic (within its partition)? I can see that the property "fromBeginning" i set to true, but when i restart the consumer, it still waits for new mesages. It does not replay the old ones?
the simplest and best tutorial ever!! Good Job
Made it till the end !
You can explain something in a super simple manner if and only if you understand it
And you do, Thanks !
Hussein, You are a legend!!! Any one can be a master if they follow to your conversations. I like the way yo have a full conversation with yourself - such a good dialogue asking and answering yourself
Thank you! I am happy you noticed the conversation style, i have been working on it 😊
Huge props for trying to understand things before you teach them!
You really know how to do tutorials, great video!
The best stuff on kafka . Made it so simple
truly amazing-so simple and incredibly useful. Great job!
Made it to the end, now gonna implement the backend of a texting app using Kafka
Enjoyed following this... as always, thanks Hussein!
I made it to the end. Thanks for the tutorial, it was very informative and I appreciate your efforts.
This is THE BEST video on this topic. Thanks a lot!
I was looking for your channel , you really good at explaining things you helped me once , I'm here again , thank you andn jazkAlllah khayran .
Really enjoyed this informative session and yeah, made it to the end !!!
I made it to the End!!! Thanks so much Hussein!
Appreciate your efforts...like the way you clearly say what you know/understand & what you dont...else I see most people in Industry are faking the intelligence & understanding about any technology & they pretend it so perfectly like they themselves have developed that tech...while those who actually know/understand the tech properly are very few & rare...
So always good to watch your videos to understand something in simple words rather mugging those funky & techie words.
Today i understood, its not the subject its the way of teaching...thanks for sharing this wonderful knowledge
Thank you for putting in the effort to make a short and clear to understand video.
professionalism + enthusiasm + enjoyment + wonderful content= Hessein Nasser
John Shaheen you make me blush John 😊 thanks !!
Amazing video. A gifted teacher like this is quite rare ♥Thanks a lot!!
btw made it to the end 😆
Clear and easy to understand. Although it's a long video, but not boring at all.
Amazing video, you have made a complex topic extremely simple with your style of teaching.
Thanks Nasser I ve made it to the end. wonderful stuff
Thank you. Best video so far for learning kafka. 👍
Thank you for this amazing channel. I enjoy watching your videos and learning more.
Awesome, such an wonderful session and easy way to represent can only be possible by Hussain Nasser only. It truly cleared lot's of my confusions. Hats Off. Keep up going ..
Brother you're videos are phenomenal they are just top notch.
how do you only have 23k subs?? you're so good at explaining difficult concepts, tysm!
61k
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86.6K
@@mazharuddin3647 88.3k
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made it to the end :))) Thank you Hussein, you are the best!!
Best explanation of Kafka on the internet!
Amazing video Hussein ! The way you explain helps to register the information in our memory :-)
Thank you so much for such a crystal clear and crisp explanation !!
Thank you, amazing tutorial as always! btw you mentioned that replicas can improve performance, I might be mistaken, but from what I understand, Kafka uses Clusters as a fail-over mechanism only, and they don't actually increase performance as all the reads & writes go to the leader.
Really.. amazing contents... Finally i could understand kafka works and specially consumer groups...
Thank you man!
Really appreciate the hardwork.
Excellent tuto Hussein! Thanks a lot.
Made it to the end!! Amazing content!
best video on kafka. Thanks a ton!
This is brilliant and concise. Been looking for a channel like this 👍🏾
M Zaman enjoy the content 🙏
So much quality content. Thanks a lot Hussein.
I appreciate the content. no boring part :)
I made it to the end :) great tutorial, thanks!
Thank you Hussein, it's a great introduction to Kafka
It's good that you included jordan speech...i was just googled that video and came back
Just watched it straight 1 hours 18 minutes during night without skipping.
Hero! I apologies for the light background on my slides that must have hurt the eyes :( I switched to dark mode on my future videos..
oh my god I love this video so much =]] this is such an amazing tutorial and how funny the instructor is : D
Made it to the end 😁. Thank you!
Great Videos on Kafka, Very Nice. Fantastic
This is amazing! Thank you for creating this
Thank you Hussein!! Great explanation as always!