// Collect periodically call smem periodically
func (s *SmemStats) Collect() {
if s.whitelistedProcs == "" || s.user == "" || s.smemPath == "" {
return
}
for _, stat := range getSmemStats(s) {
for _, element := range s.whitelistedMetrics {
switch element {
case "pss":
s.Channel() <- metric.WithValue(stat.proc+".smem.pss", stat.pss)
case "vss":
s.Channel() <- metric.WithValue(stat.proc+".smem.vss", stat.vss)
case "rss":
s.Channel() <- metric.WithValue(stat.proc+".smem.rss", stat.rss)
}
}
}
}
func buildApacheMetric(key, value string) (metric.Metric, error) {
var tmpMetric metric.Metric
if _, ok := knownApacheMetrics[key]; ok {
whiteRegexp := regexp.MustCompile(`\s+`)
metricName := whiteRegexp.ReplaceAllString(key, "")
metricValue, err := strconv.ParseFloat(value, 64)
if err != nil {
return tmpMetric, err
}
return metric.WithValue(metricName, metricValue), nil
}
return tmpMetric, errors.New("invalid metric")
}
// Collect calls smem periodically
func (s *SmemStats) Collect() {
if s.whitelistedProcs == "" || s.user == "" || s.smemPath == "" {
return
}
for _, stat := range getSmemStats(s) {
dims := s.getCustomDimensions(stat.pid)
for _, element := range s.whitelistedMetrics {
var m metric.Metric
switch element {
case "pss":
m = metric.WithValue(stat.proc+".smem.pss", stat.pss)
case "uss":
m = metric.WithValue(stat.proc+".smem.uss", stat.uss)
case "vss":
m = metric.WithValue(stat.proc+".smem.vss", stat.vss)
case "rss":
m = metric.WithValue(stat.proc+".smem.rss", stat.rss)
}
m.AddDimensions(dims)
s.Channel() <- m
}
}
}
func (ss SocketQueue) emitSocketQueueMetrics(output []byte) {
// Capture the receive queue size and the corres. port number from the output.
lines := strings.Split(string(output), "\n")
pmap := make(map[string]float64)
for _, line := range lines[1:] {
res := queueDataRegex.FindAllStringSubmatch(line, -1)
for _, v := range res {
sport, qsize := v[2], v[1]
pmap[sport] = util.StrToFloat(qsize)
}
}
for sport, qsize := range pmap {
m := metric.WithValue("sq.listen", qsize)
m.AddDimension("port", sport)
ss.Channel() <- m
}
}
// Counts status stats from JSON content
func parseJSONData(raw []byte) ([]metric.Metric, error) {
result := make(map[string]interface{})
err := json.Unmarshal(raw, &result)
results := []metric.Metric{}
if err != nil {
return results, err
}
registry := make(map[string]int)
registry["IdleWorkers"] = 0
registry["BusyWorkers"] = 0
registry["SigWorkers"] = 0
registry["PauseWorkers"] = 0
registry["CheapWorkers"] = 0
registry["UnknownStateWorkers"] = 0
workers, ok := result["workers"].([]interface{})
if !ok {
return results, fmt.Errorf("\"workers\" field not found or not an array")
}
for _, worker := range workers {
workerMap, ok := worker.(map[string]interface{})
if !ok {
return results, fmt.Errorf("worker record is not a map")
}
status, ok := workerMap["status"].(string)
if !ok {
return results, fmt.Errorf("status not found or not a string")
}
if strings.Index(status, "sig") == 0 {
status = "sig"
}
metricName := strings.Title(status) + "Workers"
_, exists := registry[metricName]
if !exists {
metricName = "UnknownStateWorkers"
}
registry[metricName]++
}
for key, value := range registry {
results = append(results, metric.WithValue(key, float64(value)))
}
return results, err
}
func extractScoreBoardMetrics(key, value string) []metric.Metric {
results := []metric.Metric{}
charCounter := func(str string, pattern string) float64 {
return float64(strings.Count(str, pattern))
}
results = append(results, metric.WithValue("IdleWorkers", charCounter(value, "_")))
results = append(results, metric.WithValue("StartingWorkers", charCounter(value, "S")))
results = append(results, metric.WithValue("ReadingWorkers", charCounter(value, "R")))
results = append(results, metric.WithValue("WritingWorkers", charCounter(value, "W")))
results = append(results, metric.WithValue("KeepaliveWorkers", charCounter(value, "K")))
results = append(results, metric.WithValue("DnsWorkers", charCounter(value, "D")))
results = append(results, metric.WithValue("ClosingWorkers", charCounter(value, "C")))
results = append(results, metric.WithValue("LoggingWorkers", charCounter(value, "L")))
results = append(results, metric.WithValue("FinishingWorkers", charCounter(value, "G")))
results = append(results, metric.WithValue("CleanupWorkers", charCounter(value, "I")))
results = append(results, metric.WithValue("StandbyWorkers", charCounter(value, "_")))
return results
}