Go in production

Writing Go services that run for months on one machine: shutdown, timeouts, memory, logging and systemd.

Go in production · 10 min read

Graceful shutdown for a Go HTTP server under systemd

Handle SIGTERM with signal.NotifyContext, drain requests with Server.Shutdown, stop workers cleanly and set TimeoutStopSec so systemd waits long enough.

Go in production · 10 min read

GOMEMLIMIT in an 80 MB container, with the numbers

A Go program with 40 MiB of live data was OOM-killed in an 80 MiB container. See what GOMEMLIMIT fixes, what it costs in CPU, and where the limit is soft.

Go in production · 9 min read

Go SQLite reads returning 404 for rows that exist

Under load, a Go service answered 404 for rows it had just written. How we found it, the regression test that catches it, and what to check in your pool.

Go in production · 10 min read

log/slog setup for a small Go service on journald

Configure log/slog with JSON or text output, a runtime log level, request ids on every line, secret redaction, and queries that work in journalctl.

Go in production · 10 min read

Go HTTP server timeouts that survive slow and stuck clients

Set ReadHeaderTimeout, ReadTimeout, WriteTimeout and IdleTimeout correctly, add per-handler deadlines, and prove a slowloris client gets cut off.