At face value uptime is the easiest monitor to setup. But, when it matters it is one of the hardest SLO to set. As long as the values are low it’s simple Up / (Up + Down) %



But when it starts crossing the 99.9x% mark is where this gets interesting.
If something is checked only x seconds, was it always up or only up during the check?
Who monitors the uptime of the uptime monitor?


As always, there is no silver bullet, just tradeoffs. The talk is a tale of these trade-offs.


About #include: The #include initiative by Gojek Tech is an open forum for sparking discussions on new technologies, interesting learnings and experiences.


The #include series is a step to bring about a community of like-minded peeps to discuss technologies that can make a difference.


Join the #include Meetup group here: https://www.meetup.com/gojektech/