Your Database Has One Collation for Southeast Asia
MySQL 8 ships 89 collations for utf8mb4 and exactly one is for a Southeast Asian language. Five of them sorted the same...
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What a Character Limit Does to Khmer
Truncation looks like the simplest thing a program does, until the same twenty-character limit hands an English reader n...
Your Scheduler Has Never Reported a Failure
Fifty-nine thousand runs, forty-four commands, zero failures — because for background tasks the failure path ran in a pr...
Your Daily Report Is Counting the Wrong Day
A naive date filter and a timezone-aware one disagreed on twelve of twenty-one days, once reporting six items on a day t...
How to Behave When You Are Rate Limited
Five clients, one job, one throttle. Hammering issued 553 requests to fetch 40 things and finished behind the client tha...
What Your Rate Limit Actually Limits
A route limited to 30 a minute and one limited to 60 turned out to share a single counter, because the framework keys it...
A 200 Is Not a Success
With the database stopped the homepage still returned 200, at a fifth of its normal text with none of its articles. Find...
What Your Health Check Does Not Check
Four dependencies stopped one at a time on a running stack. Two of the outages left the health check, the status code an...
What a Database Backup Does Not Contain
The media on one real system is larger than the dump that is supposed to protect it — 66 MB across 2,765 files against a...
How to Prove Your Backup Actually Restores
A real 156-table database dumped, loaded into a throwaway server and compared. The backup was fine. The check reported 6...
How to Stop an Agent Returning Documents the User Should Not See
A vector search scoped three ways, and measured each time. Unfiltered, four in five results belonged to another team; fi...
How to Measure Whether Your RAG Is Retrieving the Right Documents
Twenty questions with known answers, run over 205 real documents. Prefixing titles to chunks raised hit@1 from 14 to 17...
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