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cmd/geth, rpc/api: extend metrics API, add a basic monitor command

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This commit is contained in:
Péter Szilágyi
2015-06-24 14:38:58 +03:00
parent bde2ff0343
commit e5b820c47b
6 changed files with 338 additions and 32 deletions
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92
rpc/api/debug.go
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@ -177,6 +177,10 @@ func (self *debugApi) SeedHash(req *shared.Request) (interface{}, error) {
}
func (self *debugApi) Metrics(req *shared.Request) (interface{}, error) {
args := new(MetricsArgs)
if err := self.codec.Decode(req.Params, &args); err != nil {
return nil, shared.NewDecodeParamError(err.Error())
}
// Create a rate formatter
units := []string{"", "K", "M", "G", "T", "E", "P"}
round := func(value float64, prec int) string {
@ -202,35 +206,69 @@ func (self *debugApi) Metrics(req *shared.Request) (interface{}, error) {
}
name = parts[len(parts)-1]
// Fill the counter with the metric details
switch metric := metric.(type) {
case metrics.Meter:
root[name] = map[string]interface{}{
"Avg01Min": format(metric.Rate1()*60, metric.Rate1()),
"Avg05Min": format(metric.Rate5()*300, metric.Rate5()),
"Avg15Min": format(metric.Rate15()*900, metric.Rate15()),
"Total": format(float64(metric.Count()), metric.RateMean()),
}
// Fill the counter with the metric details, formatting if requested
if args.Raw {
switch metric := metric.(type) {
case metrics.Meter:
root[name] = map[string]interface{}{
"Avg01Min": metric.Rate1(),
"Avg05Min": metric.Rate5(),
"Avg15Min": metric.Rate15(),
"AvgTotal": metric.RateMean(),
"Total": float64(metric.Count()),
}
case metrics.Timer:
root[name] = map[string]interface{}{
"Avg01Min": format(metric.Rate1()*60, metric.Rate1()),
"Avg05Min": format(metric.Rate5()*300, metric.Rate5()),
"Avg15Min": format(metric.Rate15()*900, metric.Rate15()),
"Count": format(float64(metric.Count()), metric.RateMean()),
"Maximum": time.Duration(metric.Max()).String(),
"Minimum": time.Duration(metric.Min()).String(),
"Percentile": map[string]interface{}{
"20": time.Duration(metric.Percentile(0.2)).String(),
"50": time.Duration(metric.Percentile(0.5)).String(),
"80": time.Duration(metric.Percentile(0.8)).String(),
"95": time.Duration(metric.Percentile(0.95)).String(),
"99": time.Duration(metric.Percentile(0.99)).String(),
},
}
case metrics.Timer:
root[name] = map[string]interface{}{
"Avg01Min": metric.Rate1(),
"Avg05Min": metric.Rate5(),
"Avg15Min": metric.Rate15(),
"AvgTotal": metric.RateMean(),
"Total": float64(metric.Count()),
"Maximum": metric.Max(),
"Minimum": metric.Min(),
"Percentile": map[string]interface{}{
"20": metric.Percentile(0.2),
"50": metric.Percentile(0.5),
"80": metric.Percentile(0.8),
"95": metric.Percentile(0.95),
"99": metric.Percentile(0.99),
},
}
default:
root[name] = "Unknown metric type"
default:
root[name] = "Unknown metric type"
}
} else {
switch metric := metric.(type) {
case metrics.Meter:
root[name] = map[string]interface{}{
"Avg01Min": format(metric.Rate1()*60, metric.Rate1()),
"Avg05Min": format(metric.Rate5()*300, metric.Rate5()),
"Avg15Min": format(metric.Rate15()*900, metric.Rate15()),
"Total": format(float64(metric.Count()), metric.RateMean()),
}
case metrics.Timer:
root[name] = map[string]interface{}{
"Avg01Min": format(metric.Rate1()*60, metric.Rate1()),
"Avg05Min": format(metric.Rate5()*300, metric.Rate5()),
"Avg15Min": format(metric.Rate15()*900, metric.Rate15()),
"Count": format(float64(metric.Count()), metric.RateMean()),
"Maximum": time.Duration(metric.Max()).String(),
"Minimum": time.Duration(metric.Min()).String(),
"Percentile": map[string]interface{}{
"20": time.Duration(metric.Percentile(0.2)).String(),
"50": time.Duration(metric.Percentile(0.5)).String(),
"80": time.Duration(metric.Percentile(0.8)).String(),
"95": time.Duration(metric.Percentile(0.95)).String(),
"99": time.Duration(metric.Percentile(0.99)).String(),
},
}
default:
root[name] = "Unknown metric type"
}
}
})
return counters, nil