node_exporter/collector/meminfo.go
Ben Kochie 090957658e
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Update logging (#3097)
Switch from promlog/go-kit to promslog/slog for logging.
* Update Go build to 1.23.

Signed-off-by: Ben Kochie <superq@gmail.com>
2024-09-11 10:51:28 +02:00

61 lines
1.7 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 || linux || openbsd || netbsd) && !nomeminfo
// +build darwin linux openbsd netbsd
// +build !nomeminfo
package collector
import (
"fmt"
"strings"
"github.com/prometheus/client_golang/prometheus"
)
const (
memInfoSubsystem = "memory"
)
func init() {
registerCollector("meminfo", defaultEnabled, NewMeminfoCollector)
}
// Update calls (*meminfoCollector).getMemInfo to get the platform specific
// memory metrics.
func (c *meminfoCollector) Update(ch chan<- prometheus.Metric) error {
var metricType prometheus.ValueType
memInfo, err := c.getMemInfo()
if err != nil {
return fmt.Errorf("couldn't get meminfo: %w", err)
}
c.logger.Debug("Set node_mem", "memInfo", fmt.Sprintf("%v", memInfo))
for k, v := range memInfo {
if strings.HasSuffix(k, "_total") {
metricType = prometheus.CounterValue
} else {
metricType = prometheus.GaugeValue
}
ch <- prometheus.MustNewConstMetric(
prometheus.NewDesc(
prometheus.BuildFQName(namespace, memInfoSubsystem, k),
fmt.Sprintf("Memory information field %s.", k),
nil, nil,
),
metricType, v,
)
}
return nil
}