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To Cache or Not to Cache
A 7-question framework for making caching a design decision, not a default.
Sep 16
•
Raul Junco
76
8
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Every repeated LLM call is money on fire
Redis 8 just changed the game with semantic caching that understands meaning, not just keys.
Aug 11
•
Raul Junco
83
9
Retries Have an Evil Twin: Duplicates
Every distributed system has a duplication bug; it just hasn’t been triggered yet.
Jul 28
•
Raul Junco
40
7
Your Database Doesn't Trust the Server. That's Why It Writes Everything Twice.
What Every Backend Engineer Should Know About Write-Ahead Logs
Jul 9
•
Raul Junco
85
8
High Availability Isn't About Luck
It's About Patterns.
Jun 26
•
Raul Junco
62
3
Distributed Transactions Are the Root of All Complexity
SAGAs provides a structured way to deal with them.
Jun 19
•
Raul Junco
82
5
Dead Letter Queues Are Not Your Safety Net
They’re a visibility tool. Most teams misuse them, and lose data silently.
Jun 14
•
Raul Junco
54
4
You can learn System Design while waiting for your coffee.
A coffee shop operates like a Distributed System; You will learn how below.
Jun 11
•
Raul Junco
568
43
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