func (mx *mux) serverStats(key engine.ServerKey) (*engine.RoundTripStats, error) {
b, ok := mx.backends[key.BackendKey]
if !ok {
return nil, fmt.Errorf("%v not found", key.BackendKey)
}
srv, ok := b.findServer(key)
if !ok {
return nil, fmt.Errorf("%v not found", key)
}
u, err := url.Parse(srv.URL)
if err != nil {
return nil, err
}
m, err := memmetrics.NewRTMetrics()
if err != nil {
return nil, err
}
for _, f := range mx.frontends {
if f.backend.backend.Id != key.BackendKey.Id {
continue
}
if err := f.watcher.collectServerMetrics(m, u); err != nil {
return nil, err
}
}
return engine.NewRoundTripStats(m)
}
func (mx *mux) topServers(key *engine.BackendKey) ([]engine.Server, error) {
metrics := map[string]*sval{}
for _, f := range mx.frontends {
if key != nil && key.Id != f.backend.backend.Id {
continue
}
for _, s := range f.backend.servers {
val, ok := metrics[s.URL]
if !ok {
sval, err := newSval(s)
if err != nil {
return nil, err
}
metrics[s.URL] = sval
val = sval
}
if err := f.watcher.collectServerMetrics(val.m, val.u); err != nil {
return nil, err
}
}
}
servers := make([]engine.Server, 0, len(metrics))
for _, v := range metrics {
stats, err := engine.NewRoundTripStats(v.m)
if err != nil {
return nil, err
}
v.srv.Stats = stats
servers = append(servers, *v.srv)
}
sort.Stable(&serverSorter{es: servers})
return servers, nil
}
func (rt *RTWatcher) rtServerStats(u *url.URL) (*engine.RoundTripStats, error) {
rt.mtx.Lock()
defer rt.mtx.Unlock()
sm, ok := rt.srvs[surl{scheme: u.Scheme, host: u.Host}]
if ok {
return engine.NewRoundTripStats(sm)
}
return nil, fmt.Errorf("watcher: %v not found", u)
}
func (mx *mux) backendStats(key engine.BackendKey) (*engine.RoundTripStats, error) {
m, err := memmetrics.NewRTMetrics()
if err != nil {
return nil, err
}
for _, f := range mx.frontends {
if f.backend.backend.Id != key.Id {
continue
}
if err := f.watcher.collectMetrics(m); err != nil {
return nil, err
}
}
return engine.NewRoundTripStats(m)
}
func (rt *RTWatcher) rtStats() (*engine.RoundTripStats, error) {
rt.mtx.Lock()
defer rt.mtx.Unlock()
return engine.NewRoundTripStats(rt.m)
}