Apache Kafka Crash Course
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- Опубликовано: 8 июн 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
Download slides here
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(Members get all slides for all my video courses for free)
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 
Наука
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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!
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.
This was an awesome tutorial. You're incredibly good at explaining things and keeping people engaged when consuming so much information.
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❤️
One of the best tutorials i’ve seen. Great class and very funny. Subscribed and waiting for more content!
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
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... 👏👏👏
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!
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..
Dude, I made it to the End. You kept us engaged throughout. I have soo much to learn about Comp Sci!
Just started watching and already loving it. I wish you a happy new year and hoping to see more great content like this.
Couldn't learn kafka better in such a short time. Thanks Hussein.
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.
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 :)
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.
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.
The explanation and illustration is clear and concise! Thanks for the comprehensive tutorial!
This is the BEST educational channel!!! Bravo!
Amazing video! You have the talent to explain the complicated stuff really clearly😊
Excellent practical explanation of Kafka, I wish every technical tutorial was as easy as this. Thumbs up!
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. :)
I made it to the end. :P Thank you so much for the amazing content 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 ❤️
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!
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
Your skillset is brilliant, amazing and fantastic. Thank you so much!
This is well detailed even for a beginner, I completely understand whats going on. Brilliant content.
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!
You explain by answering all the questions people get when learning a topic. Most tutorials just explain concepts.
Man, you are the best, thanks a lot for creating such valuable content for free
I didn't know you before this video, but after this video? I'm gonna watch everything you upload man. Every tutorial you're selling? I'm buying! Obviously I liked & subscribed.
Really amazing!!! So many concepts explained in an easy and interesting way. Please keep up the great work.
Thank you for this, don't know how I missed it
made it to end. Amazing video. you made Kafka look so simple, and the best part-> you showed a code demo. clap. clap.
This course is great because of the example. It's much better than some videos in which only some introductions are represented.
made it to the end, and every detail was fully explained thanks.
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👍👏🙏
Very nice tutorial. Got a clear understanding of Kafka, especially the part of queue, pub sub, very helpful! Thank you so much!
I made it to the end. Followed every step and it worked nicely. Thank you for the effort... really helpful
the simplest and best tutorial ever!! Good Job
professionalism + enthusiasm + enjoyment + wonderful content= Hessein Nasser
John Shaheen you make me blush John 😊 thanks !!
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 :)
Thank you for putting in the effort to make a short and clear to understand video.
I really appreciate you from my deep of heart for explaining such complex concepts in super simple way, Excellent :)
Made it to the end! Awesome video Hussein :)
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.
The best stuff on kafka . Made it so simple
This is explained simply and perfectly. Thank you for posting this.
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?
truly amazing-so simple and incredibly useful. Great job!
This is a great video to understand what Kafka is and how it works, very well explained!
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, now gonna implement the backend of a texting app using Kafka
Course Table of Content time codes: (EDIT you should also see youtube chapters)
Download slides here
payhip.com/b/Y0Cq
Kafka Broker: 2:32
Kafka Producer: 5:39
Kafka Consumer : 7:11
Kafka Partitions : 8:34
Queue vs Pub/Sub 12:50
Consumer Group 16:47
ZooKeeper 23:06
Example 29:45
Kafka Pros & Cons 1:02:48
Summary: 1:17:00
Example time codes
Spin up Zookeeper 31:37
SPin up Kafka 34:00
Connect to Kafka (40:30)
Create Kafka Topic (45:30)
Create a Producer (49:44)
Create a Consumer (55:24)
Final test (1:00:00)
Hello Hussein. wish program do you use for recording your videos?. thanks for the answer
Made it to the end! Yay! Nice video Hussein!
This is THE BEST video on this topic. Thanks a lot!
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 😊
You really know how to do tutorials, great video!
made it to the end 🤟. It was a very good explanation with great clarity. Really Appreciate your work! Thanks a lot 🙏
Thank you so much for such a crystal clear and crisp explanation !!
Thank you. Best video so far for learning kafka. 👍
Enjoyed following this... as always, thanks Hussein!
Huge props for trying to understand things before you teach them!
I made it to the end. Thanks for the tutorial, it was very informative and I appreciate your efforts.
Best explanation of Kafka on the internet!
This is brilliant and concise. Been looking for a channel like this 👍🏾
M Zaman enjoy the content 🙏
Amazing video, you have made a complex topic extremely simple with your style of teaching.
Brother you're videos are phenomenal they are just top notch.
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 amazing channel. I enjoy watching your videos and learning more.
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.
Really enjoyed this informative session and yeah, made it to the end !!!
Made it to the end!! Amazing content!
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 .
Amazing video Hussein ! The way you explain helps to register the information in our memory :-)
Great explanation and overview over the possibilities of Kafka! Looks like a cool technology!
how do you only have 23k subs?? you're so good at explaining difficult concepts, tysm!
61k
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86.6K
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made it to the end :))) Thank you Hussein, you are the best!!
Today i understood, its not the subject its the way of teaching...thanks for sharing this wonderful knowledge
Thank you man!
Really appreciate the hardwork.
best video on kafka. Thanks a ton!
I made it to the End!!! Thanks so much Hussein!
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 !
It's good that you included jordan speech...i was just googled that video and came back
Thanks Nasser I ve made it to the end. wonderful stuff
I really enjoyed this video, thanks man ❤️
Excellent tuto Hussein! Thanks a lot.
This guy nailed it completely. Luckily, I landed here!!!
Thank you very much Hussein, this video helped me a lot. Have best see you next time.
Wow! Wonderfully explained video, including the commands. Thank you
This is amazing! Thank you for creating this
oh my god I love this video so much =]] this is such an amazing tutorial and how funny the instructor is : D
I appreciate the content. no boring part :)
So much quality content. Thanks a lot Hussein.
Thank you Hussein, it's a great introduction to Kafka
Thank you Hussein!! Great explanation as always!
I have been learning alot from you coach. Thank you so much
Really.. amazing contents... Finally i could understand kafka works and specially consumer groups...