Reliability
Browse all articles, tutorials, and guides about Reliability
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GitHub's 2.9B Monthly Commits: Anatomy of an Outage
GitHub's August 17 outage began with a missed sidecar limit and escalated through retry storms. Learn which reliability controls your platform needs next.
Running a Background Job That Must Not Be Lost
A queue gets your job to a worker, not to the finish line. What happens when the worker dies halfway, and a durable executor in 90 lines of TypeScript.
What It Actually Takes to Deliver a Webhook in Production
Sending a webhook is one HTTP POST. Delivering one is a retry schedule, a signature scheme, an idempotency story, and a way to answer "did you get it?" six hours later. Here is the whole problem, and a working Node implementation of both sides.
PostgreSQL 18.2 Broke Standbys: The 18.x Upgrade Footguns
PostgreSQL 18.2 shipped regressions bad enough to force an out-of-cycle 18.3: halted standbys, substring crashes, and a pg_trgm segfault. Here is what went wrong and the quieter Postgres 18 upgrade traps to check before you patch.
When One Data Center Room Got Hot: AWS US-EAST-1, Coinbase, and the DR Drill That Was Not
On May 7, 2026, cooling failed in a single hall of one US-EAST-1 data center. Coinbase, FanDuel, and CME Group went down for hours, and Coinbase publicly confirmed their backup systems did not work as expected. Here is what happened, the multi-AZ checklist that would have caught it, and the AWS Fault Injection Simulator commands to run the drill before the next thermal event.