Production Operations & SRE for Go interview questions

Production operations and SRE interview questions for Go test whether you've run Go services under real traffic and real incidents. This module covers SLI/SLO/SLA applied to a Go HTTP service (defining the error budget from the SLO, how it drives deployment decisions), graceful shutdown in Go (signal.NotifyContext, http.Server.Shutdown with a deadline, draining in-flight requests and closing the database pool in the correct order), goroutine leak detection (the runtime.NumGoroutine metric, pprof goroutine profile, the patterns that cause leaks — goroutine blocked forever on a channel, goroutine waiting on a context that was never cancelled), memory leaks in Go (the difference between a GC pause and a genuine leak, how to detect a growing heap with pprof, the common causes: global maps that grow without bound, closures capturing large objects), Go-specific performance profiling (CPU flame graph with go tool pprof, allocation profiling with -memprofile, escape analysis with gcflags), and the incident response playbook for a Go service going down. These questions are asked at companies where Go is the primary service language.