Updating four million rows in one statement holds a transaction open long enough for the replica to fall twenty minutes behind. The sleep is not politeness, it is…
A maintenance page that requires the application to be running is not a maintenance page. Serving it from the web server means it works when PHP is stopped,…
docker-compose.override.yml is loaded automatically and is not in version control, which is the point and is also how two developers end up with different stacks. The override file…
Automatic security updates with automatic reboots, on a host that runs queue workers with no drain step. The reboot is right and the missing piece is a systemd…