func post(in <-chan []LM) {
for metrics := range in {
if len(metrics) < 1 {
fmt.Printf("at=%q\n", "post.empty.metrics")
continue
}
token := store.Token{Id: metrics[0].Token}
token.Get()
payload := LP{metrics}
j, err := json.Marshal(payload)
postBody := bytes.NewBuffer(j)
if err != nil {
utils.MeasureE("librato.json", err)
continue
}
req, err := http.NewRequest("POST", libratoUrl, postBody)
if err != nil {
continue
}
req.Header.Add("Content-Type", "application/json")
req.SetBasicAuth(token.User, token.Pass)
resp, err := http.DefaultClient.Do(req)
if err != nil {
utils.MeasureE("librato-post", err)
continue
}
if resp.StatusCode/100 != 2 {
b, _ := ioutil.ReadAll(resp.Body)
fmt.Printf("status=%d post-body=%s resp-body=%s\n",
resp.StatusCode, postBody, b)
}
utils.MeasureI("librato.post", 1)
resp.Body.Close()
}
}
func post(outbox <-chan []*LM) {
for metrics := range outbox {
if len(metrics) < 1 {
fmt.Printf("at=%q\n", "empty-metrics-error")
continue
}
sampleMetric := metrics[0]
token := store.Token{Id: sampleMetric.Token}
// If a global user/token is provided, use the token for all metrics.
// This enable a databaseless librato_outlet.
if len(globalTokenUser) == 0 || len(globalTokenPass) == 0 {
token.Get()
} else {
token.User = globalTokenUser
token.Pass = globalTokenPass
}
payload := new(LP)
payload.Gauges = metrics
j, err := json.Marshal(payload)
if err != nil {
fmt.Printf("at=json-marshal-error error=%s\n", err)
continue
}
if len(j) == 0 {
fmt.Printf("at=empty-body-error body=%s\n", j)
continue
}
fmt.Printf("at=%q name=%s source=%s len=%d\n",
"post-metric", sampleMetric.Name, sampleMetric.Source,
len(metrics))
maxRetry := 5
for i := 0; i <= maxRetry; i++ {
b := bytes.NewBuffer(j)
req, err := http.NewRequest("POST", libratoUrl, b)
if err != nil {
fmt.Printf("at=%q error=%s body=%s\n", "request-error", err, b)
continue
}
req.Header.Add("Content-Type", "application/json")
req.SetBasicAuth(token.User, token.Pass)
resp, err := http.DefaultClient.Do(req)
if err != nil {
fmt.Printf("at=%q error=%s body=%s\n", "do-error", err, b)
continue
}
if resp.StatusCode/100 == 2 {
resp.Body.Close()
utils.MeasureI("librato-http-post", 1)
break
} else {
resp.Body.Close()
if i == maxRetry {
fmt.Printf("at=%q status=%d\n",
"librato-status-error", resp.StatusCode)
}
}
}
}
}