Someone is always getting blocked
Key Takeaways
This video teaches fundamentals of systems design, NodeJS internals and architecture, and backend troubleshooting, with references to related courses on operating systems, networking, and database engineering
Full Transcript
So it's a pure asynchronous model. If you really think about it, someone else is doing the blocking read and that's the kernel, right? We're just offloaded the game. That's the whole game, by the way. We just tell someone else to do it. It's just we present it in a in a pretty way. Okay? So everything at the end of the day is is synchronous. There's no escape. Someone else has to pay the price, right? Okay. So that's IO ranging of course I think NodeJS supports it right I keep referencing NodeJS because all node and all these framework and postcrist they're all software they all need to read from desk and do network and they're all kind of a backend infrastructure which is the specialty of this ch uh this channel so synchronize IO asynchronous IO briefly so let's talk about postgress prior to prior to 18. Okay. Prior to Postgress version 18, the each time you as a client connect to Postgress, a a new process is spun up dedicated for that session for that connection that you created and in in Postgress speech they call it a backend. So if you hear the word backend from a Postgres maintainer, they don't mean the actual backend as a Postgress or your application. No, they mean that process that got spun up uh when you connect to your Postgress instance, right? So your backend application can connect to Postgress and that's spin up an a backend process because they they just call it back
Original Description
Fundamentals of Operating Systems Course
https://oscourse.win
NodeJS Internals and Architecture
https://node.win
Backend Troubleshooting Course
https://performance.husseinnasser.com
Fundamentals of Backend Engineering
https://backend.win
Fundamentals of Networking for Effective Backends udemy course (link redirects to udemy with coupon)
https://network.husseinnasser.com
Fundamentals of Database Engineering udemy course (link redirects to udemy with coupon)
https://database.husseinnasser.com
Follow me on Medium
https://medium.com/@hnasr/membership
Introduction to NGINX (link redirects to udemy with coupon)
https://nginx.husseinnasser.com
Python on the Backend (link redirects to udemy with coupon)
https://python.husseinnasser.com
Become a Member on YouTube
https://www.youtube.com/channel/UC_ML5xP23TOWKUcc-oAE_Eg/join
Buy me a coffee if you liked this
https://www.buymeacoffee.com/hnasr
Arabic Software Engineering Channel
https://www.youtube.com/channel/UChWZsjdoRvZ0T9QWZOD6UpA
🔥 Members Only Content
https://www.youtube.com/playlist?list=UUMO_ML5xP23TOWKUcc-oAE_Eg
🏭 Backend Engineering Videos in Order
https://backend.husseinnasser.com
💾 Database Engineering Videos
https://www.youtube.com/playlist?list=PLQnljOFTspQXjD0HOzN7P2tgzu7scWpl2
🎙️Listen to the Backend Engineering Podcast
https://husseinnasser.com/podcast
Gears and tools used on the Channel (affiliates)
🖼️ Slides and Thumbnail Design
Canva
https://partner.canva.com/c/2766475/647168/10068
Stay Awesome,
Hussein
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