mirror of
https://github.com/prometheus/node_exporter
synced 2024-12-11 17:06:04 +00:00
60 lines
1.9 KiB
Go
60 lines
1.9 KiB
Go
// Copyright 2015 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.
|
|
|
|
//go:build (darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris) && !noloadavg
|
|
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
|
|
// +build !noloadavg
|
|
|
|
package collector
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/go-kit/log"
|
|
"github.com/go-kit/log/level"
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
)
|
|
|
|
type loadavgCollector struct {
|
|
metric []typedDesc
|
|
logger log.Logger
|
|
}
|
|
|
|
func init() {
|
|
registerCollector("loadavg", defaultEnabled, NewLoadavgCollector)
|
|
}
|
|
|
|
// NewLoadavgCollector returns a new Collector exposing load average stats.
|
|
func NewLoadavgCollector(logger log.Logger) (Collector, error) {
|
|
return &loadavgCollector{
|
|
metric: []typedDesc{
|
|
{prometheus.NewDesc(namespace+"_load1", "1m load average.", nil, nil), prometheus.GaugeValue},
|
|
{prometheus.NewDesc(namespace+"_load5", "5m load average.", nil, nil), prometheus.GaugeValue},
|
|
{prometheus.NewDesc(namespace+"_load15", "15m load average.", nil, nil), prometheus.GaugeValue},
|
|
},
|
|
logger: logger,
|
|
}, nil
|
|
}
|
|
|
|
func (c *loadavgCollector) Update(ch chan<- prometheus.Metric) error {
|
|
loads, err := getLoad()
|
|
if err != nil {
|
|
return fmt.Errorf("couldn't get load: %w", err)
|
|
}
|
|
for i, load := range loads {
|
|
level.Debug(c.logger).Log("msg", "return load", "index", i, "load", load)
|
|
ch <- c.metric[i].mustNewConstMetric(load)
|
|
}
|
|
return err
|
|
}
|