Best practices

Distributed traces track how your system processed a single request — not what your customers did over time. Confusing the two leads to poorly instrumented systems.

What actually breaks when teams add high cardinality metrics and why those failures are hard to avoid unless the system is built for it.

kubectl exec into running pods to debug, run shell commands, and troubleshoot containers. Copy-paste examples for exec -it, multi-container pods, and common debugging workflows.