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package limit
import (
"github.com/prometheus/client_golang/prometheus"
"github.com/spf13/cobra"
rrlimit "github.com/spiral/roadrunner/service/limit"
"github.com/spiral/roadrunner/service/metrics"
rr "github.com/spiral/roadrunner/service/reload/cmd/rr/cmd"
)
func init() {
cobra.OnInitialize(func() {
svc, _ := rr.Container.Get(metrics.ID)
mtr, ok := svc.(*metrics.Service)
if !ok || !mtr.Enabled() {
return
}
ht, _ := rr.Container.Get(rrlimit.ID)
if ht, ok := ht.(*rrlimit.Service); ok {
collector := newCollector()
// register metrics
mtr.MustRegister(collector.maxMemory)
// collect events
ht.AddListener(collector.listener)
}
})
}
// listener provide debug callback for system events. With colors!
type metricCollector struct {
maxMemory prometheus.Counter
maxExecutionTime prometheus.Counter
}
func newCollector() *metricCollector {
return &metricCollector{
maxMemory: prometheus.NewCounter(
prometheus.CounterOpts{
Name: "rr_limit_max_memory",
Help: "Total number of workers that was killed because they reached max memory limit.",
},
),
maxExecutionTime: prometheus.NewCounter(
prometheus.CounterOpts{
Name: "rr_limit_max_execution_time",
Help: "Total number of workers that was killed because they reached max execution time limit.",
},
),
}
}
// listener listens to http events and generates nice looking output.
func (c *metricCollector) listener(event int, ctx interface{}) {
switch event {
case rrlimit.EventMaxMemory:
c.maxMemory.Inc()
case rrlimit.EventExecTTL:
c.maxExecutionTime.Inc()
}
}
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