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package sfive
import (
"fmt"
"time"
"github.com/equinox0815/graphite-golang"
)
func (srv Server) getLastUpdateGraphite(conn *graphite.Graphite) (latestId int, storeId string, err error) {
latestId, err = srv.getLastUpdateIdInvoke()
if err != nil {
s5l.Printf("fwd-graphite: failed to get own hubid: %v\n", err)
return
}
return
}
func (srv Server) handleForwardingToGraphite(forwardHost string, basePath string) {
tryResync:
for {
client, err := graphite.NewGraphiteFromAddress(forwardHost)
if err != nil {
s5l.Printf("fwd-graphite: connect returned err: %v", err)
time.Sleep(5 * time.Second)
continue tryResync
}
lastId, _, err := srv.getLastUpdateGraphite(client)
if err != nil {
s5l.Printf("fwd-graphite: lastupdate returned err: %v", err)
client.Disconnect()
time.Sleep(5 * time.Second)
continue tryResync
}
s5l.Printf("fwd-graphite: lastupdate: %d", lastId)
nextBatch:
for {
updates, err := srv.getUpdatesAfterInvoke(lastId, 5000)
if err != nil {
s5l.Printf("fwd-graphite: failed reading updates: %v\n", err)
time.Sleep(500 * time.Millisecond)
continue nextBatch
}
s5l.Printf("fwd-graphite: got %d updates", len(updates))
if len(updates) == 0 {
time.Sleep(1 * time.Second)
continue nextBatch
}
metrics := make([]graphite.Metric, len(updates)*3)
for i, update := range updates {
path := basePath + "." + update.Hostname
path = path + "." + update.StreamId.ContentId
path = path + "." + update.StreamId.Format
path = path + "." + update.StreamId.Quality
metrics[i*3] = graphite.NewMetric(path+".client-count", fmt.Sprintf("%d", update.Data.ClientCount), update.StartTime.Unix())
metrics[i*3+1] = graphite.NewMetric(path+".bytes-received", fmt.Sprintf("%d", update.Data.BytesReceived), update.StartTime.Unix())
metrics[i*3+2] = graphite.NewMetric(path+".bytes-sent", fmt.Sprintf("%d", update.Data.BytesSent), update.StartTime.Unix())
}
err = client.SendMetrics(metrics)
if err != nil {
s5l.Printf("fwd-graphite: sending metrics failed: %v\n", err)
time.Sleep(1 * time.Second)
continue tryResync
}
s5l.Printf("fwd-graphite: all metrics sent")
lastId = findMaxId(updates)
s5l.Printf("fwd-graphite: new lastid: %d", lastId)
//time.Sleep(1 * time.Second)
}
}
}
func (srv Server) RunForwardingToGraphite(forwardHost string, basePath string) {
srv.handleForwardingToGraphite(forwardHost, basePath)
}
|
