Rails Health Check: What /up Proves and What It Misses
A rails health check ships with every app since 7.1, but /up only proves the process booted. Here is the second route, and the traps around both.
#monitoring
86 posts tagged "Monitoring".
RabbitMQ Health Check: The Ladder of Checks
A rabbitmq health check proves one thing at a time. Here is the ladder from ping to alarms, the HTTP endpoints, and the outage every ping survives.
Open Source Uptime Monitoring: 5 Tools and the Catch
Open source uptime monitoring gives you unlimited checks and full data ownership. Here are five tools worth running, and the one thing one host cannot do.
On Call Rotation: The Arithmetic Before the Calendar
An on call rotation starts with headcount arithmetic, not a calendar. Here is the pool size, the shift boundary and the handoff that make one hold.
Nginx Health Check: Passive, Active and the Licence Wall
An nginx health check means one of two configs, and the active kind is NGINX Plus only. Here is what open source gives you and how to cover the rest.
MySQL Health Check: The Two Probes That Lie
A mysql health check built on mysqladmin ping reports success with the wrong password, and a socket probe matches the temporary server on first boot.