The Backend Engineering Show with Hussein Nasser

By Hussein NasserTechnology

The Backend Engineering Show with Hussein Nasser episodes

April 28, 2020 When should you shard your database?
Database Application level sharding is the process of splitting a table into multiple database instances in order to distribute the load. However, Sharding a database is an expensive operation (maintainability and overhead) and I suggest you do that only when you absolutely need to. That means when your single instance database can no longer serve queries with minimum latency. So I suggest you monitor that and only shard if necessary.. I rather do replication make master / backup and make requests read from replica than Sharding just because it is easier.. good question... nice idea for a video
5:00 Partition horizontally
7:45 Replication (Master/backup) Scale reads
11:00 Scale writes by region
12:30 Sharding
16:40 Sharding in YouTube
22 min
April 25, 2020 Advice for Junior backend engineers who just started new jobs
In this video I give some advice to junior backend engineers who just started their new jobs and feel overwhelmed. Backend engineering jobs can be overwhelming at the start, there are so much to learn, so much to read, documentation, tests, code in multiple programming languages. Here are some advice for Junior backend engineers.
0:00 Intro
1:20 Take your time
6:05 Stay hungry keep learning
8:36 Assume your collages know something you don’t
12:42 Don’t bad mouth other people code even if its bad
17:19 Question everything
24 min
April 23, 2020 Why System Design and Architecture is an Art ?
Creating a software design is an art here is why
3 min
April 22, 2020 What makes a good Software Tester?
Software Testing is Art, In this video, I discuss what makes a Good Software Tester. How can you become a better software tester that people line up to give pick you?
Organizations build software products. But the software is useless if it is filled with bugs. A bug discovered after the product is shipped costs the organization a lot of money. A bug that is discovered before shipping saves the organization time and resources. So organizations line up to find good software engineers that are great in troubleshooting and testing.
12 min
April 19, 2020 JSON Web Token
JSON Web Token (JWT, sometimes pronounced JOT) an internet standard for creating JSON-based access tokens that assert some number of claims. The tokens are signed either using a private secret or a public/private key.
In this video I want to discuss the difference between JWT and Session Based Auth, will show examples with Node JS and Postgres. Finally I’ll discuss the pros and cons of JWT.
57 min
April 12, 2020Main Difference between Asynchronous, Multithreading and Multiprocessing Programming
In this video I explain the main difference between asynchronous execution, multithreading and multiprocessing programming. There are advantages and disadvantages of each approach.
Synchronous 0:30

Multithreading a process have many threads shared resources 3:20

Async io single thread 6:00

Multiprocessing 11:00
Threads are evil
https://web.stanford.edu/~ouster/cgi-bin/papers/threads.pdf
sync vs async, multithreading vs multiprocessing, multithreading async, threading
16 min
April 12, 2020How End to End encryption work?
In this video I explain End to End encryption within the context of WhatsApp. I explain how encryption and TLS works then the problem of having a centerlized server decrypting the traffic, I then talk about how end to end encryption (e2e) can help mitgate that and finally I explain the problems with e2e encryption
Classic Encryption Example 1:00

End to end encryption 3:25

Problem with E2E 7:30

- Trust? Fingerprints/CA (QR whatspp)
encryption 00:30
encryption, e2e encryption, end to end encryption, whatsapp end to end encryption, how e2e works, e2e limitations
14 min
April 12, 2020WhatsApp Limits Messages that can be Forwarded
WhatsApp
Introduced long time a go

Unlimited forwarding then limited Up to 5 times

Double forwarded too many times (last year)

Double forwarded messages can only be forwarded once or even none
Forwarding feature
end to end encryption

Sent/delivered/read
https://www.cnbc.com/2020/04/07/whatsapp-limits-message-forwards-to-combat-coronavirus-misinformation.html
6 min
April 09, 2020 Forward Proxy vs Reverse Proxy Explained
In this video, I explain the difference between a proxy and a reverse proxy. This is a refreshed version of the proxy video I made. What is a Proxy ? Proxy use cases - Logging - Anonymity - Geofencing - Caching - Block sites (office) - Enable Polyglot What is Reverse Proxy? Reverse Proxy Example Reverse Proxy Use Cases - Caching (Varnish) - Load Balancing - Ingress (/pics) - Canary Deployment Many types of proxy check it here Q and A * can we use proxy and reverse proxy together? * Can I use Proxy to hide my identity instead of a VPN? * Can I use proxy just for HTTP? tags: proxy vs reverse proxy, reverse proxy benefits, what is a reverse proxy, what is a proxy, what is the difference between proxy and reverse proxy Sidecar proxy 4:14 Load balance 7:40 Proxy Reverse Proxy 5:00 🏭 Software Architecture Videos https://www.youtube.com/playlist?list=PLQnljOFTspQXNP6mQchJVP3S-3oKGEuw9 💾 Database Engineering Videos https://www.youtube.com/playlist?list=PLQnljOFTspQXjD0HOzN7P2tgzu7scWpl2 🛰 Network Engineering Videos https://www.youtube.com/playlist?list=PLQnljOFTspQUBSgBXilKhRMJ1ACqr7pTr 🏰 Load Balancing and Proxies Videos https://www.youtube.com/playlist?list=PLQnljOFTspQVMeBmWI2AhxULWEeo7AaMC 🐘 Postgres Videos https://www.youtube.com/playlist?list=PLQnljOFTspQWGrOqslniFlRcwxyY94cjj 🚢Docker https://www.youtube.com/playlist?list=PLQnljOFTspQWsD-rakNw1C20c1JI8UR1r 🧮 Programming Pattern Videos https://www.youtube.com/playlist?list=PLQnljOFTspQV1emqxKbcP5esAf4zpqWpe 🛡 Web Security Videos https://www.youtube.com/playlist?list=PLQnljOFTspQU3YDMRSMvzflh_qXoz9zfv 🦠 HTTP Videos https://www.youtube.com/playlist?list=PLQnljOFTspQU6zO0drAYHFtkkyfNJw1IO 🐍 Python Videos https://www.youtube.com/playlist?list=PLQnljOFTspQU_M83ARz8mDdr4LThzkBKX 🔆 Javascript Videos https://www.youtube.com/playlist?list=PLQnljOFTspQWab0g3W6ZaDM6_Buh20EWM 👾Discord Server https://discord.gg/CsFbFce Support me on PayPal https://bit.ly/33ENps4 Become a Patreon https://www.patreon.com/join/hnasr? Stay Awesome, Hussein
15 min
April 05, 2020 What is a Distributed Transaction in Microservices?
In this video I explore what is a distributed transaction but first I explain what is a transaction, then why we invented distributed transactions and finally discuss proposed solutions to implement distributed transactions Cards 2:40 ACID https://www.youtube.com/watch?v=pomxJOFVcQs 7:30 Microservices https://www.youtube.com/watch?v=T-m7ZFxeg1A Transactions 2:30 Compensating Edits 6:40 Atomic Clocks 11:50 Event Sourcing 13:30 Mini-Monolith 15:20 Resources https://www.youtube.com/watch?v=YPbGW3Fnmbc https://www.youtube.com/watch?v=S4FnmSeRpAY https://www.youtube.com/watch?v=epOLEdaPSLQ https://softwareengineeringdaily.com/2018/12/19/linkerd-service-mesh-with-william-morgan/ 🏭 Software Architecture Videos https://www.youtube.com/playlist?list=PLQnljOFTspQXNP6mQchJVP3S-3oKGEuw9 💾 Database Engineering Videos https://www.youtube.com/playlist?list=PLQnljOFTspQXjD0HOzN7P2tgzu7scWpl2 🛰 Network Engineering Videos https://www.youtube.com/playlist?list=PLQnljOFTspQUBSgBXilKhRMJ1ACqr7pTr 🏰 Load Balancing and Proxies Videos https://www.youtube.com/playlist?list=PLQnljOFTspQVMeBmWI2AhxULWEeo7AaMC 🐘 Postgres Videos https://www.youtube.com/playlist?list=PLQnljOFTspQWGrOqslniFlRcwxyY94cjj 🚢Docker https://www.youtube.com/playlist?list=PLQnljOFTspQWsD-rakNw1C20c1JI8UR1r 🧮 Programming Pattern Videos https://www.youtube.com/playlist?list=PLQnljOFTspQV1emqxKbcP5esAf4zpqWpe 🛡 Web Security Videos https://www.youtube.com/playlist?list=PLQnljOFTspQU3YDMRSMvzflh_qXoz9zfv 🦠 HTTP Videos https://www.youtube.com/playlist?list=PLQnljOFTspQU6zO0drAYHFtkkyfNJw1IO 🐍 Python Videos https://www.youtube.com/playlist?list=PLQnljOFTspQU_M83ARz8mDdr4LThzkBKX 🔆 Javascript Videos https://www.youtube.com/playlist?list=PLQnljOFTspQWab0g3W6ZaDM6_Buh20EWM 👾Discord Server https://discord.gg/CsFbFce Support me on PayPal https://bit.ly/33ENps4 Become a Patreon https://www.patreon.com/join/hnasr? Stay Awesome, Hussein
22 min

About The Backend Engineering Show with Hussein Nasser

From the publisher's feed

Welcome to the Backend Engineering Show podcast with your host Hussein Nasser. If you like software engineering you’ve come to the right place. I discuss all sorts of software engineering technologies and news with specific focus on the backend. All opinions are my own.