Hi, I'm Kamran Ali.
I have ~11.5 years of experience in Designing and Building Transactional / Analytical Systems.
I'm actually getting paid while pursuing my Hobby and its already been a decade.
In my next decade, I'm looking forward to guide and mentor engineers with experience and resources
I Help Engineers Design / Build Distributed Systems and Excel in Interviews / Industry projects with Experience and Resources
Sep 1, 2024 路 4 min read 路 Etsy optimised 1,000,000,000,000's of cached data handlings 1,000,000's lookups/sec Story of Consistent Hashing with a secret sauce. Etsy, uses memcached (to cache db queries, expensive calculations etc) and Varnish (to cache internal HTTP requests)...
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Aug 30, 2024 路 5 min read 路 Figma used this strategy to Vertically Partition their Database Learn the tradeoffs for your next System Design Interview 馃憞 Definition Vertical partitioning is when a database is split by moving tables and/or columns into a separate database Backg...
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Aug 28, 2024 路 4 min read 路 Amazon Business Data Technologies (BDT) Team moved EXABYTE scale jobs from Spark to this tech. 馃 Cost saving of $120MM/year on EC2 on-demand R5 instance charges 馃敟 Background It started with migration from Oracle To decouple storage and compute, th...
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Aug 26, 2024 路 3 min read 路 Reddit used this database to handle ~100,000 Reads/sec with ~17ms (p99)馃憞 Use the proven techniques in your next System Design Interview 馃敟 Background Media metadata is classified as Data on the post model e.g. video thumbnails, playback URLs, bitra...
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Aug 26, 2024 路 2 min read 路 Discord shared its journey from storing 1,000,000,000 (Billion) messages to 1,000,000,000,000 (Trillion) messages Issues faced when Cassandra Cluster grew from 12 Nodes (in 2017) to 177 Nodes (in 2022) Problems In 2017, 12 Cassandra nodes were storin...
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