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Vector Database Selection: Pinecone, pgvector, Qdrant After 6 Months in Production
We ran the same RAG workload across three vector stores for a quarter each. Here's what we learned about latency, cost, and operational overhead.
Pre-Commit Hooks That Saved Our Repo: 7 Real Examples
Every hook on this list caught a bug or a security issue in the last twelve months. The configs are short. The savings have been considerable.
EKS Auto Mode: What Worked, What Broke in Our Migration
We moved a 60-node production EKS cluster to Auto Mode. Some pain points evaporated, others got harder. The cost picture is more nuanced than the marketing suggests.
Self-Hosted LLMs vs OpenAI API: A Cost-vs-Latency Analysis After 6 Months
We ran the same workload on both for half a year. The break-even point isn't where most blog posts say it is — and the latency story has more nuance than throughput-per-dollar charts admit.
OpenTelemetry Collector Pipelines: Real Configs That Survived Production
We've been running the OTel Collector at the edge of every cluster for 18 months. The config patterns that lasted, the ones we ripped out, and a few processors that quietly saved us money.
Blue/Green Deploys for Stateful Services: A Postgres Cutover Story
Blue/green is easy for stateless services. We did it for our primary Postgres cluster with 3.2TB of data and ~8k connections. Here's exactly how — and what almost went wrong.
Zero Trust on AWS: Lessons From Implementing IAM Identity Center
We replaced 14 long-lived IAM users with SSO + temporary credentials. The migration plan, the gotchas, and the policies we now enforce.
Embedding Quality in RAG: How We Cut Hallucinations by 60%
Six months running RAG in production taught us that the retrieval step matters far more than the model. Concrete techniques that moved the needle, with before/after numbers.
Database Migrations Without Downtime: Patterns From Three Real Cutovers
How we shipped three schema migrations with zero customer impact. Expand-then-contract, dual-writes, and the rollback plan we never had to use — but tested anyway.
Monitoring That Actually Helps On-Call: Alerts, Dashboards, and Runbooks
We were drowning in 200 alerts a week. Most got ignored. After a quarter of triage and rework, we're at about 15 — and on-call actually responds to them.
Secrets Management in Practice: From .env Files to Vault
We had .env files in three repos, AWS keys in Slack DMs, and a postgres password etched into a Confluence page. Cleaning it up took a sprint and changed how we think about secrets.
Incident Postmortems That Actually Prevent Repeat Failures
We wrote pretty postmortems for two years and kept hitting the same incidents. Here's what changed when we started writing ugly ones.