Igeometry Podcast

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 --- Support this podcast: https://anchor.fm/hnasr/support

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 --- Support this podcast: https://anchor.fm/hnasr/support

Creating a software design is an art here is why  --- Support this podcast: https://anchor.fm/hnasr/support

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. --- Support this podcast: https://anchor.fm/hnasr/support

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. --- Support this podcast: https://anchor.fm/hnasr/support

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 --- Support this podcast: https://anchor.fm/hnasr/support

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 --- Support this podcast: https://anchor.fm/hnasr/support

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 --- Support this podcast: https://anchor.fm/hnasr/support

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   

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/     

A very necessary change and good step made by Google Chrome Team to rollback the same site cookie change Blog https://blog.chromium.org/2020/04/temporarily-rolling-back-samesite.html Firefox re-enables https://www.youtube.com/watch?v=sh3TPId35Ec SameSite Cookie Attribute https://www.youtube.com/watch?v=aUF2QCEudPo --- Support this podcast: https://anchor.fm/hnasr/support

In this video I explain why we invented bloom filters and where you can use it to make your queries more efficent. --- Support this podcast: https://anchor.fm/hnasr/support

On-Demand TLS is a new feature developed by Caddy Web Server that allows TLS certificate to be generated on the first request, I explain this tech and their pros and cons in this video. --- Support this podcast: https://anchor.fm/hnasr/support

Lazy Loading is a technique where a piece of data is being loaded when needed instead prior. This ensures Fast startup times but can delay requests. In this video I’ll show both Eager loading and the lazy loading with example Node JS --- Support this podcast: https://anchor.fm/hnasr/support

In this podcast I discuss the good, the bad and the ugly about gRPC. No technology is perfect.  --- Support this podcast: https://anchor.fm/hnasr/support

THIS IS MAIN reason gRPC was invented 8:40 -> 16:40 (8 minutes) In this video I discuss the reasoning and all the problems and limitations that lead to the invention of gRPC. --- Support this podcast: https://anchor.fm/hnasr/support

Firefox has disabled TLS 1.0 and TLS 1.1 to improve your website connections. Sites that don't support TLS version 1.2 will now show an error page.  We reverted the change for an undetermined amount of time to better enable access to critical government sites sharing COVID19 information. https://www.youtube.com/watch?v=grVVuGnN9IE https://www.mozilla.org/en-US/firefox/74.0/releasenotes/ https://twitter.com/cramforce/status/1242515799215988737?s=21 --- Support this podcast: https://anchor.fm/hnasr/support

Copy and Paste Code, Tutorial Hell, Frontend Frameworks, GitHub Pull request Trolling and more --- Support this podcast: https://anchor.fm/hnasr/support

New software chat series let me know if you like it --- Support this podcast: https://anchor.fm/hnasr/support

In this video, I discuss the path of becoming a backend engineer through concepts and fundamentals. These are not tools