func collect(ts time.Time, statsUrl string) {
// TODO: At some point we can look at refactoring this to use the
// 'serviced metric' code
// collect eth0 statistics
netStats, err := readInt64Stats(eth0StatsDir)
if err != nil {
glog.Errorf("Could not collect eth0 stats: %s", err)
return
}
// convert netStats to samples
samples := make([]stats.Sample, len(netStats))
now := ts.Unix()
tags := map[string]string{"component": "eth0"}
i := 0
for name, value := range netStats {
samples[i] = stats.Sample{
Metric: "net." + name,
Value: strconv.FormatInt(value, 10),
Timestamp: now,
Tags: tags,
}
i++
}
// collect open connection statistics
for proto, procFile := range procNetFiles {
conns, err := getOpenConnections(procFile)
if err != nil {
glog.Errorf("Could not collect open connection information: %s", err)
return
}
sample := stats.Sample{
Metric: "net.open_connections." + proto,
Value: strconv.FormatInt(int64(conns), 10),
Timestamp: now,
Tags: map[string]string{"protocol": proto},
}
samples = append(samples, sample)
}
glog.V(4).Infof("posting samples: %+v", samples)
if err := stats.Post(statsUrl, samples); err != nil {
glog.Errorf("could not post stats: %s", err)
}
}
func (a *api) PostMetric(metricName string, metricValue string) (string, error) {
url := fmt.Sprintf("http://%s/api/metrics/store", options.HostStats)
timeStamp := time.Now().Unix()
hostId, err := utils.HostID()
if err != nil {
glog.Errorf("Error getting host id, error: %s", err)
return "", err
}
samples := make([]stats.Sample, 1)
samples[0] = stats.Sample{
Metric: metricName,
Value: metricValue,
Timestamp: timeStamp,
Tags: map[string]string{"controlplane_host_id": hostId},
}
if err := stats.Post(url, samples); err != nil {
glog.Errorf("could not post stats: %s", err)
return "", err
}
return "Posted metric", nil
}