Subscribe and Kafka will say thank you :)

The absence of any background music makes this video great.

What an amazing tutorial: Just the necessities, no annoying background music, no annoying calls to "subscribe and like". If all youtube channels were like that, we could heal the world. Also, I checked your channel page and was shocked to find that this was only your 3rd video. Keep being awesome!

I 100% believe you should make a whole series on Kafka, your way of simplifying the subject is legendary.

These videos are amazingly simple and clear. The animations are spot on!! Too good xD I wish this channel never stops uploading new content

How can one keep things so deep and yet stunningly simple. Hats off!

Seriously, thanks a lot Alex for all the stuff you convey through your LinkedIn network and KZfaq videos. Just love the way you distil the topics and make them understand beautifully.

Mentioned a lot in the comments, but I have to say as well: what a great explanation, straight to the point, no bs and gives enough info without overwhelming with details. Thank you!

You guys are doing amazing work here. I love the aesthetics, pace, explanations, topics, and cadence of it all. Kudos!

Short, high quality, clean and extremely precise content...Many Thanks!

No frills and thrills, just pure nuggets of value. Exactly what I needed. Thank you. You earned my sub.

this guy is so sweet. man! i was struggling on this system design, all his books and posts are too easy to follow and helped me become more confident

In 5 minutes I learned a lot! Amazing video! You are a good teacher! Thank you and I hope to see more videos from you!

I have used kafka before but never had to think about why it is actually fast. This was very informative. I like the format of the video as well

Man this is gold. Saying thank you does not feel enough. Please keep it up.

Short, concise and concrete. Very easy to understand. Thanks a lot

Absolutely fantastic video - went over a lot of concepts like minimizing disk io, engineering constraints of kafka, different memory access patterns, with very good diagrams! Thank you :)

So glad the algorithm found this channel for me, the content is so clear and digestible, thank you please keep up the fantastic work

Amazing! Love the quality and getting straight to the point. Not a second wasted.

Lol, I heard you talk for about 10 seconds and subscribed. The tone of voice, the kind of explanation, the details, the video content, all of that quality conveyed in just a few seconds. Excellent content. Great stuff.

Really great presentation! I was scared when I saw Kafka but you explained it really well.

You have a extremely clear and nice way to talk and explain! Please make more videos like that. Awesome work!

I love all the System-design Content posted by you! Thanks for sharing your knowledge! 🙏

Very simple and efficient execution, talking about both the video and Kafka. Really good material mate, keep up the good work

Succinct. Precise. Educative. Excellent animation. Simply the best 💯

excited to see Sahn on youtube! this is by far the best tech video I've watched. concise without losing any depth! looking forward to more videos like this. I've had the fortune to (indirectly) work with Sahn and review his code. one of the few top talents that any company is lucky to have. this video is as high quality as other production of his. 2 questions for Sahn: 1. there's a small disconnection between "sequential IO throughput vs random IO throughput" and "HDD vs SSD". is there any perf number difference on sequential IO throughput on HDD vs SSD? 2. is there any perf number difference(ops per sec or latency) for zero-copy vs traditional buffer copies?

You made me realize the importance of expressing thought in a clear and concise way. Thank you

Loved the animation and explanation. Keep enlightening us all!

i wanted to comment that i appreciate the level of detail in the explanations in the video. looking forward to more useful content!

5 minutes of high quality content, thanks!

Exactly my kind of content. Interesting, insightful and to the point.

This is not the same Kafka I was expecting, but happy to learn. thanks for sharing!

Short ,Crisp and To the point contents , Great work !!

Very simple and clear! Thank you!

A truly educational and concise video. Thank you.

Crisp yet complete info. Good content. Thank You.

concise and crisp clear... Thanks for making such amazing and valuable videos.

Awesome Explanation about Kafka is amazing...Thank you, Alex

Wow, this one is super cool. No background music, cool minimalistic diagrams, calm voice!

I love the format of these videos. Looking forward to more and to the newsletters too!

Nice, I definitely learned something new about the Kafka internals today!

So simple yet so powerful explanation, thanks

Great video, explain kafka design so clearly. Thanks very much

We need so much more of this.

My head exploded with the DMA. I had not idea! Great learning! :)

Very deep insight! Looking forward to your next videos, please keep going

Thank you! Such a great delivery and explanation. Particularly, great choice of aspects to share.

wow. No BS, only content! Thank you!

Very clear explanation. Thank You!

Great work! Easy to understand the concept. Thank you

wow!! this channel is a goldmine for backend engineer

This is explained so well. I've love to hear you speak more about kafka. EDIT: 100% ådding that newsletter to my rss.

really this is high quality videos and lovely animations ... thanks a lot for simplifying why kafka is fast

Amazing details about frequently used software. Lucky to bump into this page. Thanks

Thank you for the wonderful explanation of Kafkas abilities.

I really appreciate your work. Excellent video. Superbly Articulated. Easy to grab the concepts. Great work. 😍

Amazing work guys! I'm subscribed to any newsletter and video you make, and it's worth it. Congratulations team 👏👏👏

This is so amazing! Straight to the point!

Greatest video series with fluenent + clear + intuiative illustration ( master-quality ##) , can not thanku enough!

Thanks for the useful instruction!

Short and Sweet! Excellent video.

This was a clear and concise presentation. Thank you so much 👍

This is an amazing video. Actually putting it out there - I LIKED AND SUBBED! Well deserved for great content 💯

your video is very clear and on-point Sir, thanks a lot 👍👍

Really loved this. Thank you.

Thanks, brilliant tutorial. My company are currently gearing up to adopt a data mesh architecture and It's gonna be fun moving from batch to this CDC stream methodology.

Amazing content! Keep posting such videos, its a great help!!!

content is simple and crisp... thank for bringing this to us...

Thank u so much!!! I had this question in my mind and got explained by your in a very easy way!!!

those minimalistic graphics makes complicated topics easy to ingest. Subscribed!

Very simple with good animation to explain things clearly. Keep publishing these kinds of useful videos.

Stunning. It's not abt any topic related to computer science or tech, if anyone teach me anything like this, i will skip everything and learn. Thank you for changing lives of people.

Such a good content in just 5 minutes!

Amazing explanation. Thank you sir.

影片中說明兩個為什麼 Apache Kafka 能夠提供高流量傳輸大量紀錄的特性： 1. 循序 I/O 以 C 來說，當使用 fopen() 需要開啟一個檔案為 append 模式，file pointer 會直接在檔案尾端準備以新增方式繼續加入新資料，會比每次加入資料需要移動 Pointer 到特定位置再寫入來的快速。如果用硬碟的循序讀寫與隨機讀寫，會更容易理解。 在 File-based Database，例如 dBASE, COBOL + ISAM, Paradox，也是直接將新紀錄寫在檔案後方。可以用 PC-Tools 打開檔案觀察 HEX Code 確認。風險在於如果來不及寫入 EOL，沒有順利關閉檔案，就會造成檔案損毀與資料遺失。 刪除紀錄也只是在記錄上做個標記，並不會真正刪除，需要等到執行 compact database 才會真正刪除。因此我在設計需要確實刪除客戶個人資料時，會以無意義的字串覆蓋，直接刪除其實只是標記，資料還在。 2. [Zero Copy](en.wikipedia.org/wiki/Zero-copy) 避開將相同資料在不同記憶體區塊再次複製後移動，縮短傳送路徑。例如在提供 DMA 模式情況下，讓系統函數直接將讀取已經被讀入記憶體緩衝區的資料放入網卡 NIC 緩衝區開始傳送，省略 Socket Buffer 路徑。

WOW, amazing stuff

Thanks Alex for such a great video. You are amazing !! The way you explain the stuff is pretty awesome and simple. Thank you once again for such great work.

Very cool channel you keep the most important stuff compact, not everyone can do that.

First time I actually WANT to subscribe to a newsletter.

Short & sweet. Thank you.

wow the comments are right. simple and clear... subscribed

Brilliantly explained!! 👏

Amazing! Thank you for making this video, appreciate it esp diagram explaining zero copy principle

Simple and very insightful, I like the lack of music and the use of motion graphics, helps me focus.

Very beautifully explained 👌

After going through the video and your explanation, I am decided to take a paid subscription in byte byte go! Your explanations are to the point and succinct to understand a topic ! Thank you for the video.

Very informative video, thank you so much!!

Awesome video. Looking forward to the next one.

Nice intro about Kafka, learned quickly, now you got a new subscriber 👍

Nice, that was really clear explanation, thanks a lot!

Nice stuff, great content with simple words

Very insightful. The diagrams made me understand the concepts

Great technical explanation. I just want to add that Kafka can be used for much more than just data ingestion sending data from a data source to a data sink. The Apache Kafka open source project also includes Kafka Connect for data integration and Kafka Streams for data processing. Therefore, you can leverage the characteristics explained in this video to build a modern data flow with a single (scalable and reliable) real-time infrastructure instead of combining several different components (like Apache Kafka for ingestion, Apache Camel for data integration, and another stream processing framework like Apache Flink for real-time analytics).

Short and Sweet, and Deeeep.... Awesome explanation..!🔥

Thank you for putting up this tutorial! Study vidoes like this and then practice at Meetapro with mock interviews will help you land multiple offers.

Essential collection of videos in this channel for a software developer

Love this explanation!

The animation is amazing!

ASMR experience :) i have subscribed... Neat explanations... I am not curious about Kafka, but curious about the optimization techniques and strategies they have accomplished which I would like to learn... Please do more!

This is excellent. Thank you. Loved the Redis video too.