How We Handled Our First Major Outage (And Survived)
Three years ago we had our first real outage. Six hours of downtime. Thousands of angry users. Multiple executives on the call. Here's what we did rig…
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3rd OOM on the VPS: Parallel Builds and a flock Mutex Story
Scene: "the sites are down dude" Wednesday, May 7, afternoon. A message on my phone: "the sites are down dude." Quick check: my own blog (mustafaerbay…
Docker Ate 56 GB of Disk in a Day: Building a Cleanup Automation
"no posts for hours" — the message I got I noticed it in the evening — my hourly content-generate cron hadn't completed a single successful run since …
Stripe Webhook Was Silently Failing for 5 Days: The 4xx Retry Trap and the Beginning-of-Month Time Bomb
TL;DR 21 invoice.paid webhooks failed for 5 straight days in production. We only noticed because Stripe sent a "we'll auto-disable this endpoint by 5/…
Postmortem: AI Incident Classifier Failed Due to Biased Training Data and Scikit-Learn 1.5
In Q3 2024, a production AI incident classifier mislabeled 42% of critical security incidents as 'low priority' over 72 hours, causing $2.1M in SLA br…