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Articles tagged with #tutorial
Pick two: consistency, availability, partition tolerance Day 124 of 149 👉 Full deep-dive with code examples The Three Wishes Analogy A genie says: "Pick any TWO wishes, but not all three" Wish 1: Fastest car Wish 2: Cheapest car Wish 3: Most relia...
Copying data to multiple servers Day 122 of 149 👉 Full deep-dive with code examples The Backup Copy Analogy Important documents: One copy at home One copy at the bank One copy at your lawyer's If your house burns down, you still have copies! Data...
Splitting data across servers Day 121 of 149 👉 Full deep-dive with code examples The Library Card Catalog Analogy One huge card catalog is hard to use: Long lines at one catalog If it breaks, no one can find books Split by letters: A-F catalog i...
Store events, not current state Day 117 of 149 👉 Full deep-dive with code examples The Bank Statement Analogy Your bank doesn't just show your balance: It keeps every transaction ever Deposit $100, withdraw $20, transfer $50... You can see exactly...
Separate read and write models Day 116 of 149 👉 Full deep-dive with code examples The Library Analogy Imagine a library: Reading books → Sit in reading room, browse catalog Adding new books → Different process, involves cataloging, labeling Readi...
Ports and adapters pattern Day 114 of 149 👉 Full deep-dive with code examples The Power Outlet Analogy Your laptop works anywhere in the world: Different outlets in different countries You just use an adapter The laptop doesn't change—only the ada...