Update json reading logging (#198)

Update the smartctl command reading and parsing of json logging to make
for easier debugging of slow devices by adding a duration to the debug
logging.

For https://github.com/prometheus-community/smartctl_exporter/issues/197

Signed-off-by: SuperQ <superq@gmail.com>
This commit is contained in:
Ben Kochie 2024-01-25 17:52:05 +01:00 committed by GitHub
parent 844af85ca8
commit 77e6b075fa
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@ -63,7 +63,7 @@ func readFakeSMARTctl(logger log.Logger, device string) gjson.Result {
// Get json from smartctl and parse it
func readSMARTctl(logger log.Logger, device string) (gjson.Result, bool) {
level.Debug(logger).Log("msg", "Collecting S.M.A.R.T. counters", "device", device)
start := time.Now()
out, err := exec.Command(*smartctlPath, "--json", "--info", "--health", "--attributes", "--tolerance=verypermissive", "--nocheck=standby", "--format=brief", "--log=error", device).Output()
if err != nil {
level.Warn(logger).Log("msg", "S.M.A.R.T. output reading", "err", err, "device", device)
@ -71,6 +71,7 @@ func readSMARTctl(logger log.Logger, device string) (gjson.Result, bool) {
json := parseJSON(string(out))
rcOk := resultCodeIsOk(logger, device, json.Get("smartctl.exit_status").Int())
jsonOk := jsonIsOk(logger, json)
level.Debug(logger).Log("msg", "Collected S.M.A.R.T. json data", "device", device, "duration", time.Since(start))
return json, rcOk && jsonOk
}