The Redis exporter presents Redis metrics to Prometheus. Port 9121 is a common default. A port match can be an exporter, a development service, or an unrelated listener. The exporter's value comes from a configured connection to Redis, which may carry…
When building digital infrastructure for mega-events—especially those scaling to 10,000+ attendees in Riyadh and Jeddah under Saudi Vision 2030—the most significant engineering bottleneck isn't hardware; it's data silos. Organizers frequently use one SaaS tool for registration, a separate vendor for…
It is 2:47 PM. You run a quick Node.js script to update the price of one product in a supermarket inventory database. The script finishes. Then your stomach drops. You forgot the WHERE clause. Every single product in the database…
None of those assumptions hold. This post describes how we design the exchange so that repeating any message is harmless. That property, idempotency, is what separates an integration you can leave running from one you babysit. Before designing anything, it…
Page one looks right. You click Load more, and the last item appears again. Someone deletes a record, and now an item disappears between pages instead. This can happen with a perfectly valid ORDER BY. The problem is that OFFSET…
Joins are where a lot of SQL bugs hide. A report silently drops customers who never ordered, a WHERE clause quietly turns a LEFT JOIN back into an INNER JOIN, or MySQL happily runs a "FULL JOIN" that isn't one.
If you use an AI coding assistant for backend work, you have probably seen this pattern: it generates a CRUD endpoint in seconds, then you spend days aligning authentication, permissions, menus, dictionaries, audit logs and reports. The endpoint was never…
IBM announces IBM® Db2® Genius Code helps developers write, troubleshoot and optimize SQL faster with native Db2 AI assistance and actionable performance insights. AI is changing how developers build applications. But when it comes to enterprise databases, general-purpose AI assistants might not…
I picked 150 repos at random that have it and went back through each file's history to the commit that added it. 147 of them added it in 2025 or 2026, and 113 this year alone. Issues and PRs show when it happened: Through 2024 it…
Disclosure: I build 1ToolRing, one of the options below. The other options are real alternatives and I say where they fit better. Per the same page: 100 queries a day are free, then $5 per 1,000 queries, capped at 10,000 queries a day. Each query…
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