135 lines
4.1 KiB
Go
135 lines
4.1 KiB
Go
// Copyright 2017 The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// +build !noqdisc
|
|
|
|
package collector
|
|
|
|
import (
|
|
"encoding/json"
|
|
"io/ioutil"
|
|
"path/filepath"
|
|
|
|
"github.com/ema/qdisc"
|
|
"github.com/go-kit/log"
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
"gopkg.in/alecthomas/kingpin.v2"
|
|
)
|
|
|
|
type qdiscStatCollector struct {
|
|
bytes typedDesc
|
|
packets typedDesc
|
|
drops typedDesc
|
|
requeues typedDesc
|
|
overlimits typedDesc
|
|
qlength typedDesc
|
|
backlog typedDesc
|
|
logger log.Logger
|
|
}
|
|
|
|
var (
|
|
collectorQdisc = kingpin.Flag("collector.qdisc.fixtures", "test fixtures to use for qdisc collector end-to-end testing").Default("").String()
|
|
)
|
|
|
|
func init() {
|
|
registerCollector("qdisc", defaultDisabled, NewQdiscStatCollector)
|
|
}
|
|
|
|
// NewQdiscStatCollector returns a new Collector exposing queuing discipline statistics.
|
|
func NewQdiscStatCollector(logger log.Logger) (Collector, error) {
|
|
return &qdiscStatCollector{
|
|
bytes: typedDesc{prometheus.NewDesc(
|
|
prometheus.BuildFQName(namespace, "qdisc", "bytes_total"),
|
|
"Number of bytes sent.",
|
|
[]string{"device", "kind"}, nil,
|
|
), prometheus.CounterValue},
|
|
packets: typedDesc{prometheus.NewDesc(
|
|
prometheus.BuildFQName(namespace, "qdisc", "packets_total"),
|
|
"Number of packets sent.",
|
|
[]string{"device", "kind"}, nil,
|
|
), prometheus.CounterValue},
|
|
drops: typedDesc{prometheus.NewDesc(
|
|
prometheus.BuildFQName(namespace, "qdisc", "drops_total"),
|
|
"Number of packets dropped.",
|
|
[]string{"device", "kind"}, nil,
|
|
), prometheus.CounterValue},
|
|
requeues: typedDesc{prometheus.NewDesc(
|
|
prometheus.BuildFQName(namespace, "qdisc", "requeues_total"),
|
|
"Number of packets dequeued, not transmitted, and requeued.",
|
|
[]string{"device", "kind"}, nil,
|
|
), prometheus.CounterValue},
|
|
overlimits: typedDesc{prometheus.NewDesc(
|
|
prometheus.BuildFQName(namespace, "qdisc", "overlimits_total"),
|
|
"Number of overlimit packets.",
|
|
[]string{"device", "kind"}, nil,
|
|
), prometheus.CounterValue},
|
|
qlength: typedDesc{prometheus.NewDesc(
|
|
prometheus.BuildFQName(namespace, "qdisc", "current_queue_length"),
|
|
"Number of packets currently in queue to be sent.",
|
|
[]string{"device", "kind"}, nil,
|
|
), prometheus.GaugeValue},
|
|
backlog: typedDesc{prometheus.NewDesc(
|
|
prometheus.BuildFQName(namespace, "qdisc", "backlog"),
|
|
"Number of bytes currently in queue to be sent.",
|
|
[]string{"device", "kind"}, nil,
|
|
), prometheus.GaugeValue},
|
|
logger: logger,
|
|
}, nil
|
|
}
|
|
|
|
func testQdiscGet(fixtures string) ([]qdisc.QdiscInfo, error) {
|
|
var res []qdisc.QdiscInfo
|
|
|
|
b, err := ioutil.ReadFile(filepath.Join(fixtures, "results.json"))
|
|
if err != nil {
|
|
return res, err
|
|
}
|
|
|
|
err = json.Unmarshal(b, &res)
|
|
return res, err
|
|
}
|
|
|
|
func (c *qdiscStatCollector) Update(ch chan<- prometheus.Metric) error {
|
|
var msgs []qdisc.QdiscInfo
|
|
var err error
|
|
|
|
fixtures := *collectorQdisc
|
|
|
|
if fixtures == "" {
|
|
msgs, err = qdisc.Get()
|
|
} else {
|
|
msgs, err = testQdiscGet(fixtures)
|
|
}
|
|
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, msg := range msgs {
|
|
// Only report root qdisc information.
|
|
if msg.Parent != 0 {
|
|
continue
|
|
}
|
|
|
|
ch <- c.bytes.mustNewConstMetric(float64(msg.Bytes), msg.IfaceName, msg.Kind)
|
|
ch <- c.packets.mustNewConstMetric(float64(msg.Packets), msg.IfaceName, msg.Kind)
|
|
ch <- c.drops.mustNewConstMetric(float64(msg.Drops), msg.IfaceName, msg.Kind)
|
|
ch <- c.requeues.mustNewConstMetric(float64(msg.Requeues), msg.IfaceName, msg.Kind)
|
|
ch <- c.overlimits.mustNewConstMetric(float64(msg.Overlimits), msg.IfaceName, msg.Kind)
|
|
ch <- c.qlength.mustNewConstMetric(float64(msg.Qlen), msg.IfaceName, msg.Kind)
|
|
ch <- c.backlog.mustNewConstMetric(float64(msg.Backlog), msg.IfaceName, msg.Kind)
|
|
}
|
|
|
|
return nil
|
|
}
|