func watchdog()

in internal/mode/webserver/webserver.go [481:516]

• 33 lines of code
• 5 McCabe index (conditional complexity)

func watchdog(dt time.Duration, maxErrCount int, addr string) {
	tr := &http.Transport{
		TLSClientConfig: &tls.Config{InsecureSkipVerify: true}, // nolint:gosec
	}
	client := &http.Client{
		Transport: tr,
	}
	tick := time.NewTicker(dt)

	errCount := 0
	for range tick.C {
		err := watchdogOnce(context.Background(), client, addr)
		if err != nil {
			errCount++
			metricWatchdogErrors.Set(float64(errCount))
			metricWatchdogErrorsTotal.Inc()
			if errCount >= maxErrCount {
				log.Printf(`watchdog health check has consecutively failed %d times indicating is likely an unrecoverable error affecting zoekt. As such this process will exit with code 3.

Final error: %v

Possible remediations:
- If this rarely happens, ignore and let your process manager restart zoekt.
- Possibly under provisioned. Try increasing CPU or disk IO.
- A bug. Reach out with logs and screenshots of metrics when this occurs.`, errCount, err)
				os.Exit(3)
			} else {
				log.Printf("watchdog: failed, will try %d more times: %v", maxErrCount-errCount, err)
			}
		} else if errCount > 0 {
			errCount = 0
			metricWatchdogErrors.Set(float64(errCount))
			log.Printf("watchdog: success, resetting error count")
		}
	}
}