Observability vs Monitoring: What Each One Answers
Observability is what your telemetry lets you ask, monitoring is the set of questions you already wrote down, and only one of them survives a dead host.
#health-checks
35 posts tagged "Health Checks".
Django Health Check: Endpoint, Probes and Alerts
A django health check should verify the database, cache and broker, answer 503 when one is gone, and be watched from outside your own cluster.
Prometheus Blackbox Exporter: Setup and Blind Spots
A working Prometheus blackbox exporter config, the relabel rules that trip people up, and the vantage-point problem no tutorial mentions.
Load Balancer Health Check: Settings That Matter
A load balancer health check decides which backends get traffic. Here are the four parameters, the shallow-versus-deep trap, and what to return.
Kubernetes Health Check: Probes, Timing, Blind Spots
A kubernetes health check has three forms and three consequences. Here are the handlers, the timing arithmetic, and the restart storm to avoid.
Health Check Endpoint Design: What It Should Return
A health check endpoint answers one question for one caller. Here is how to pick the caller, choose 200 or 503, and keep the wrong things out of the body.