Thank you, Vicky, for the kind words! Working on more videos.

I second. I wonder what does it take to make it popular. There should be something simple. I am watching a few other channels. Nobody covers it to this level. May be more videos required. on short topics. Say 10-15 mins .

@@nirumani put it on LC discussion board

Fantastic series of videos. I've worked on very large distributed caches (multiple terabytes, thousands of servers) and some other fun stuff to mention to the interviewer is: - Failure modes besides just plain qps. Specifically, Redis will be overwhelmed by connection churn if it receives thousands of new connections per second. Twemproxy, on the other hand can handle this just fine. I have not tested this with Redis Cluster, but I suspect Redis Cluster also suffers from this. - Auditing: With GDPR and California's analog to this, the legal department often is interested in how long we store data and where. For the former case, they may want a global TTL, or failing that, metrics and alerts when the cache TTL is too high. For the latter case, we may need to separate out data from users in various countries at the client level. - Maintaining client libraries: How do we make sure everybody is on the newest version of the library? How do we manage multiple implementations? For Redis Cluster, this is a big problem- it turns out different clients have very different characteristics when it comes to detecting failures of nodes. Using a sidecar proxy like Envoy can be a big help as we can manage retries and health checks in a more principled manner. - Testing: Frequently service owners don't think about how their service behaves with a degraded cache. Chaos monkey is a step in the right direction, but it is a blunt tool. Instead we can add knobs to return a percentage of errors, or delay requests, allowing us to really understand how we need to improve the service- for example retry intervals.

@@SystemDesignInterview Unfortunately you have so few videos, I've been watching them over and over before my system design interview. Top K heavy hitters is my favorite one, probably watched it 5 times already.

Discovered this channel at the end of 2023 and it’s still top channel.

Hey from 2024

That is absolutely true. I usually watch other videos in 1.5x time so I complete them fairly fast but for this video I have to pause it many times to take notes and process information so it takes more than the video's length (easily 2x).

Thank you for the feedback, Amardeep! Really appreciate it.

Thank you, Pratibha, for the feedback! Much appreciated!

Hi Dumitru. Appreciate your feedback! Working on more videos. If you like the format, I hope the next video (in progress) will resonate well with you.

Thank you for the feedback, vetiஅரவிந்த! Glad to know that both the structure and the approach resonate well with you.

Thank you, Trupti.

Thank you for the feedback, Akshat! Much appreciated.

Thank you, @cnanavat, for all your feedbacks!

Thank you, Subba, for the kind words! Much appreciated.

Thank you for the feedback, ErrorFr33!

Thank you for the feedback, @pks!

Glad you liked it, Pratyush. Appreciate the feedback!

Glad you like the video, Nithin. Thank you for the feedback! More videos to come.

Thank you, Alexander!

Glad to be helpful, Shubhra. Wish you luck on your interviews! I hope you will find these videos useful not only for interviews, but for your daily job as well.

Thank you for the feedback, Dariusz.