mirror of
https://github.com/prometheus/node_exporter.git
synced 2024-12-26 22:19:44 -08:00
509 lines
22 KiB
Go
509 lines
22 KiB
Go
// Copyright 2021 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build !noethtool
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// +build !noethtool
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// The hard work of collecting data from the kernel via the ethtool interfaces is done by
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// https://github.com/safchain/ethtool/
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// by Sylvain Afchain. Used under the Apache license.
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package collector
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import (
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"errors"
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"fmt"
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"os"
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"regexp"
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"sort"
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"strings"
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"sync"
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"syscall"
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"github.com/alecthomas/kingpin/v2"
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"github.com/go-kit/log"
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"github.com/go-kit/log/level"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/procfs/sysfs"
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"github.com/safchain/ethtool"
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"golang.org/x/sys/unix"
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)
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var (
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ethtoolDeviceInclude = kingpin.Flag("collector.ethtool.device-include", "Regexp of ethtool devices to include (mutually exclusive to device-exclude).").String()
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ethtoolDeviceExclude = kingpin.Flag("collector.ethtool.device-exclude", "Regexp of ethtool devices to exclude (mutually exclusive to device-include).").String()
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ethtoolIncludedMetrics = kingpin.Flag("collector.ethtool.metrics-include", "Regexp of ethtool stats to include.").Default(".*").String()
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ethtoolReceivedRegex = regexp.MustCompile(`(^|_)rx(_|$)`)
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ethtoolTransmitRegex = regexp.MustCompile(`(^|_)tx(_|$)`)
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)
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type Ethtool interface {
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DriverInfo(string) (ethtool.DrvInfo, error)
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Stats(string) (map[string]uint64, error)
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LinkInfo(string) (ethtool.EthtoolCmd, error)
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}
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type ethtoolLibrary struct {
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ethtool *ethtool.Ethtool
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}
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func (e *ethtoolLibrary) DriverInfo(intf string) (ethtool.DrvInfo, error) {
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return e.ethtool.DriverInfo(intf)
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}
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func (e *ethtoolLibrary) Stats(intf string) (map[string]uint64, error) {
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return e.ethtool.Stats(intf)
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}
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func (e *ethtoolLibrary) LinkInfo(intf string) (ethtool.EthtoolCmd, error) {
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var ethtoolCmd ethtool.EthtoolCmd
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_, err := ethtoolCmd.CmdGet(intf)
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return ethtoolCmd, err
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}
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type ethtoolCollector struct {
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fs sysfs.FS
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entries map[string]*prometheus.Desc
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entriesMutex sync.Mutex
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ethtool Ethtool
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deviceFilter deviceFilter
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infoDesc *prometheus.Desc
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metricsPattern *regexp.Regexp
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logger log.Logger
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}
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// makeEthtoolCollector is the internal constructor for EthtoolCollector.
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// This allows NewEthtoolTestCollector to override its .ethtool interface
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// for testing.
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func makeEthtoolCollector(logger log.Logger) (*ethtoolCollector, error) {
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fs, err := sysfs.NewFS(*sysPath)
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if err != nil {
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return nil, fmt.Errorf("failed to open sysfs: %w", err)
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}
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e, err := ethtool.NewEthtool()
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if err != nil {
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return nil, fmt.Errorf("failed to initialize ethtool library: %w", err)
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}
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// Pre-populate some common ethtool metrics.
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return ðtoolCollector{
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fs: fs,
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ethtool: ðtoolLibrary{e},
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deviceFilter: newDeviceFilter(*ethtoolDeviceExclude, *ethtoolDeviceInclude),
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metricsPattern: regexp.MustCompile(*ethtoolIncludedMetrics),
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logger: logger,
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entries: map[string]*prometheus.Desc{
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"rx_bytes": prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "ethtool", "received_bytes_total"),
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"Network interface bytes received",
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[]string{"device"}, nil,
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),
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"rx_dropped": prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "ethtool", "received_dropped_total"),
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"Number of received frames dropped",
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[]string{"device"}, nil,
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),
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"rx_errors": prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "ethtool", "received_errors_total"),
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"Number of received frames with errors",
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[]string{"device"}, nil,
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),
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"rx_packets": prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "ethtool", "received_packets_total"),
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"Network interface packets received",
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[]string{"device"}, nil,
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),
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"tx_bytes": prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "ethtool", "transmitted_bytes_total"),
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"Network interface bytes sent",
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[]string{"device"}, nil,
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),
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"tx_errors": prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "ethtool", "transmitted_errors_total"),
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"Number of sent frames with errors",
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[]string{"device"}, nil,
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),
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"tx_packets": prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "ethtool", "transmitted_packets_total"),
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"Network interface packets sent",
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[]string{"device"}, nil,
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),
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// link info
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"supported_port": prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "network", "supported_port_info"),
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"Type of ports or PHYs supported by network device",
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[]string{"device", "type"}, nil,
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),
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"supported_speed": prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "network", "supported_speed_bytes"),
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"Combination of speeds and features supported by network device",
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[]string{"device", "duplex", "mode"}, nil,
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),
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"supported_autonegotiate": prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "network", "autonegotiate_supported"),
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"If this port device supports autonegotiate",
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[]string{"device"}, nil,
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),
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"supported_pause": prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "network", "pause_supported"),
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"If this port device supports pause frames",
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[]string{"device"}, nil,
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),
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"supported_asymmetricpause": prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "network", "asymmetricpause_supported"),
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"If this port device supports asymmetric pause frames",
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[]string{"device"}, nil,
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),
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"advertised_speed": prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "network", "advertised_speed_bytes"),
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"Combination of speeds and features offered by network device",
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[]string{"device", "duplex", "mode"}, nil,
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),
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"advertised_autonegotiate": prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "network", "autonegotiate_advertised"),
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"If this port device offers autonegotiate",
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[]string{"device"}, nil,
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),
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"advertised_pause": prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "network", "pause_advertised"),
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"If this port device offers pause capability",
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[]string{"device"}, nil,
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),
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"advertised_asymmetricpause": prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "network", "asymmetricpause_advertised"),
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"If this port device offers asymmetric pause capability",
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[]string{"device"}, nil,
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),
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"autonegotiate": prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "network", "autonegotiate"),
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"If this port is using autonegotiate",
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[]string{"device"}, nil,
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),
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},
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infoDesc: prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "ethtool", "info"),
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"A metric with a constant '1' value labeled by bus_info, device, driver, expansion_rom_version, firmware_version, version.",
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[]string{"bus_info", "device", "driver", "expansion_rom_version", "firmware_version", "version"}, nil,
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),
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}, nil
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}
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func init() {
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registerCollector("ethtool", defaultDisabled, NewEthtoolCollector)
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}
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// Generate the fully-qualified metric name for the ethool metric.
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func buildEthtoolFQName(metric string) string {
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metricName := strings.TrimLeft(strings.ToLower(SanitizeMetricName(metric)), "_")
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metricName = ethtoolReceivedRegex.ReplaceAllString(metricName, "${1}received${2}")
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metricName = ethtoolTransmitRegex.ReplaceAllString(metricName, "${1}transmitted${2}")
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return prometheus.BuildFQName(namespace, "ethtool", metricName)
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}
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// NewEthtoolCollector returns a new Collector exposing ethtool stats.
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func NewEthtoolCollector(logger log.Logger) (Collector, error) {
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return makeEthtoolCollector(logger)
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}
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// updatePortCapabilities generates metrics for autonegotiate, pause and asymmetricpause.
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// The bit offsets here correspond to ethtool_link_mode_bit_indices in linux/include/uapi/linux/ethtool.h
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// https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/ethtool.h
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func (c *ethtoolCollector) updatePortCapabilities(ch chan<- prometheus.Metric, prefix string, device string, linkModes uint32) {
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var (
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autonegotiate = 0.0
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pause = 0.0
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asymmetricPause = 0.0
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)
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if linkModes&(1<<unix.ETHTOOL_LINK_MODE_Autoneg_BIT) != 0 {
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autonegotiate = 1.0
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}
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if linkModes&(1<<unix.ETHTOOL_LINK_MODE_Pause_BIT) != 0 {
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pause = 1.0
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}
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if linkModes&(1<<unix.ETHTOOL_LINK_MODE_Asym_Pause_BIT) != 0 {
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asymmetricPause = 1.0
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}
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ch <- prometheus.MustNewConstMetric(c.entry(fmt.Sprintf("%s_autonegotiate", prefix)), prometheus.GaugeValue, autonegotiate, device)
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ch <- prometheus.MustNewConstMetric(c.entry(fmt.Sprintf("%s_pause", prefix)), prometheus.GaugeValue, pause, device)
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ch <- prometheus.MustNewConstMetric(c.entry(fmt.Sprintf("%s_asymmetricpause", prefix)), prometheus.GaugeValue, asymmetricPause, device)
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}
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// updatePortInfo generates port type metrics to indicate if the network devices supports Twisted Pair, optical fiber, etc.
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// The bit offsets here correspond to ethtool_link_mode_bit_indices in linux/include/uapi/linux/ethtool.h
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// https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/ethtool.h
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func (c *ethtoolCollector) updatePortInfo(ch chan<- prometheus.Metric, device string, linkModes uint32) {
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for name, bit := range map[string]int{
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"TP": unix.ETHTOOL_LINK_MODE_TP_BIT,
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"AUI": unix.ETHTOOL_LINK_MODE_AUI_BIT,
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"MII": unix.ETHTOOL_LINK_MODE_MII_BIT,
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"FIBRE": unix.ETHTOOL_LINK_MODE_FIBRE_BIT,
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"BNC": unix.ETHTOOL_LINK_MODE_BNC_BIT,
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"Backplane": unix.ETHTOOL_LINK_MODE_Backplane_BIT,
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} {
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if linkModes&(1<<bit) != 0 {
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ch <- prometheus.MustNewConstMetric(c.entry("supported_port"), prometheus.GaugeValue, 1.0, device, name)
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}
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}
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}
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// updateSpeeds generates metrics corresponding to the speeds and duplex modes supported or advertised by the network device.
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// The bit offsets here correspond to ethtool_link_mode_bit_indices in linux/include/uapi/linux/ethtool.h
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// https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/ethtool.h
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func (c *ethtoolCollector) updateSpeeds(ch chan<- prometheus.Metric, prefix string, device string, linkModes uint32) {
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linkMode := fmt.Sprintf("%s_speed", prefix)
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const (
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full = "full"
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half = "half"
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// This is in _bytes_ to match bytes-per-second speeds from netclass.
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Mbps = 1000000.0 / 8.0
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)
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for bit, labels := range map[int]struct {
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speed int
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duplex string
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phy string
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}{
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unix.ETHTOOL_LINK_MODE_10baseT_Half_BIT: {10, half, "T"},
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unix.ETHTOOL_LINK_MODE_10baseT_Full_BIT: {10, full, "T"},
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unix.ETHTOOL_LINK_MODE_100baseT_Half_BIT: {100, half, "T"},
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unix.ETHTOOL_LINK_MODE_100baseT_Full_BIT: {100, full, "T"},
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unix.ETHTOOL_LINK_MODE_1000baseT_Half_BIT: {1000, half, "T"},
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unix.ETHTOOL_LINK_MODE_1000baseT_Full_BIT: {1000, full, "T"},
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unix.ETHTOOL_LINK_MODE_10000baseT_Full_BIT: {10000, full, "T"},
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unix.ETHTOOL_LINK_MODE_2500baseT_Full_BIT: {2500, full, "T"},
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unix.ETHTOOL_LINK_MODE_1000baseKX_Full_BIT: {1000, full, "KX"},
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unix.ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT: {10000, full, "KX4"},
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unix.ETHTOOL_LINK_MODE_10000baseKR_Full_BIT: {10000, full, "KR"},
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unix.ETHTOOL_LINK_MODE_10000baseR_FEC_BIT: {10000, full, "R_FEC"},
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unix.ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT: {20000, full, "MLD2"},
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unix.ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT: {20000, full, "KR2"},
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unix.ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT: {40000, full, "KR4"},
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unix.ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT: {40000, full, "CR4"},
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unix.ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT: {40000, full, "SR4"},
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unix.ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT: {40000, full, "LR4"},
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unix.ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT: {56000, full, "KR4"},
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unix.ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT: {56000, full, "CR4"},
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unix.ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT: {56000, full, "SR4"},
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unix.ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT: {56000, full, "LR4"},
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unix.ETHTOOL_LINK_MODE_25000baseCR_Full_BIT: {25000, full, "CR"},
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unix.ETHTOOL_LINK_MODE_25000baseKR_Full_BIT: {25000, full, "KR"},
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unix.ETHTOOL_LINK_MODE_25000baseSR_Full_BIT: {25000, full, "SR"},
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unix.ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT: {50000, full, "CR2"},
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unix.ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT: {50000, full, "KR2"},
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unix.ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT: {100000, full, "KR4"},
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unix.ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT: {100000, full, "SR4"},
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unix.ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT: {100000, full, "CR4"},
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unix.ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT: {100000, full, "R4_ER4"},
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unix.ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT: {50000, full, "SR2"},
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unix.ETHTOOL_LINK_MODE_1000baseX_Full_BIT: {1000, full, "X"},
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unix.ETHTOOL_LINK_MODE_10000baseCR_Full_BIT: {10000, full, "CR"},
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unix.ETHTOOL_LINK_MODE_10000baseSR_Full_BIT: {10000, full, "SR"},
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unix.ETHTOOL_LINK_MODE_10000baseLR_Full_BIT: {10000, full, "LR"},
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unix.ETHTOOL_LINK_MODE_10000baseLRM_Full_BIT: {10000, full, "LRM"},
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unix.ETHTOOL_LINK_MODE_10000baseER_Full_BIT: {10000, full, "ER"},
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unix.ETHTOOL_LINK_MODE_5000baseT_Full_BIT: {5000, full, "T"},
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unix.ETHTOOL_LINK_MODE_50000baseKR_Full_BIT: {50000, full, "KR"},
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unix.ETHTOOL_LINK_MODE_50000baseSR_Full_BIT: {50000, full, "SR"},
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unix.ETHTOOL_LINK_MODE_50000baseCR_Full_BIT: {50000, full, "CR"},
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unix.ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT: {50000, full, "LR_ER_FR"},
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unix.ETHTOOL_LINK_MODE_50000baseDR_Full_BIT: {50000, full, "DR"},
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unix.ETHTOOL_LINK_MODE_100000baseKR2_Full_BIT: {100000, full, "KR2"},
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unix.ETHTOOL_LINK_MODE_100000baseSR2_Full_BIT: {100000, full, "SR2"},
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unix.ETHTOOL_LINK_MODE_100000baseCR2_Full_BIT: {100000, full, "CR2"},
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unix.ETHTOOL_LINK_MODE_100000baseLR2_ER2_FR2_Full_BIT: {100000, full, "LR2_ER2_FR2"},
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unix.ETHTOOL_LINK_MODE_100000baseDR2_Full_BIT: {100000, full, "DR2"},
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unix.ETHTOOL_LINK_MODE_200000baseKR4_Full_BIT: {200000, full, "KR4"},
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unix.ETHTOOL_LINK_MODE_200000baseSR4_Full_BIT: {200000, full, "SR4"},
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unix.ETHTOOL_LINK_MODE_200000baseLR4_ER4_FR4_Full_BIT: {200000, full, "LR4_ER4_FR4"},
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unix.ETHTOOL_LINK_MODE_200000baseDR4_Full_BIT: {200000, full, "DR4"},
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unix.ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT: {200000, full, "CR4"},
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unix.ETHTOOL_LINK_MODE_100baseT1_Full_BIT: {100, full, "T1"},
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unix.ETHTOOL_LINK_MODE_1000baseT1_Full_BIT: {1000, full, "T1"},
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unix.ETHTOOL_LINK_MODE_400000baseKR8_Full_BIT: {400000, full, "KR8"},
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unix.ETHTOOL_LINK_MODE_400000baseSR8_Full_BIT: {400000, full, "SR8"},
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unix.ETHTOOL_LINK_MODE_400000baseLR8_ER8_FR8_Full_BIT: {400000, full, "LR8_ER8_FR8"},
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unix.ETHTOOL_LINK_MODE_400000baseDR8_Full_BIT: {400000, full, "DR8"},
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unix.ETHTOOL_LINK_MODE_400000baseCR8_Full_BIT: {400000, full, "CR8"},
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unix.ETHTOOL_LINK_MODE_100000baseKR_Full_BIT: {100000, full, "KR"},
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unix.ETHTOOL_LINK_MODE_100000baseSR_Full_BIT: {100000, full, "SR"},
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unix.ETHTOOL_LINK_MODE_100000baseLR_ER_FR_Full_BIT: {100000, full, "LR_ER_FR"},
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unix.ETHTOOL_LINK_MODE_100000baseCR_Full_BIT: {100000, full, "CR"},
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unix.ETHTOOL_LINK_MODE_100000baseDR_Full_BIT: {100000, full, "DR"},
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unix.ETHTOOL_LINK_MODE_200000baseKR2_Full_BIT: {200000, full, "KR2"},
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unix.ETHTOOL_LINK_MODE_200000baseSR2_Full_BIT: {200000, full, "SR2"},
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unix.ETHTOOL_LINK_MODE_200000baseLR2_ER2_FR2_Full_BIT: {200000, full, "LR2_ER2_FR2"},
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unix.ETHTOOL_LINK_MODE_200000baseDR2_Full_BIT: {200000, full, "DR2"},
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unix.ETHTOOL_LINK_MODE_200000baseCR2_Full_BIT: {200000, full, "CR2"},
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unix.ETHTOOL_LINK_MODE_400000baseKR4_Full_BIT: {400000, full, "KR4"},
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unix.ETHTOOL_LINK_MODE_400000baseSR4_Full_BIT: {400000, full, "SR4"},
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unix.ETHTOOL_LINK_MODE_400000baseLR4_ER4_FR4_Full_BIT: {400000, full, "LR4_ER4_FR4"},
|
|
unix.ETHTOOL_LINK_MODE_400000baseDR4_Full_BIT: {400000, full, "DR4"},
|
|
unix.ETHTOOL_LINK_MODE_400000baseCR4_Full_BIT: {400000, full, "CR4"},
|
|
unix.ETHTOOL_LINK_MODE_100baseFX_Half_BIT: {100, half, "FX"},
|
|
unix.ETHTOOL_LINK_MODE_100baseFX_Full_BIT: {100, full, "FX"},
|
|
} {
|
|
if linkModes&(1<<bit) != 0 {
|
|
ch <- prometheus.MustNewConstMetric(c.entry(linkMode), prometheus.GaugeValue,
|
|
float64(labels.speed)*Mbps, device, labels.duplex, fmt.Sprintf("%dbase%s", labels.speed, labels.phy))
|
|
}
|
|
}
|
|
}
|
|
|
|
func (c *ethtoolCollector) Update(ch chan<- prometheus.Metric) error {
|
|
netClass, err := c.fs.NetClass()
|
|
if err != nil {
|
|
if errors.Is(err, os.ErrNotExist) || errors.Is(err, os.ErrPermission) {
|
|
level.Debug(c.logger).Log("msg", "Could not read netclass file", "err", err)
|
|
return ErrNoData
|
|
}
|
|
return fmt.Errorf("could not get net class info: %w", err)
|
|
}
|
|
|
|
if len(netClass) == 0 {
|
|
return fmt.Errorf("no network devices found")
|
|
}
|
|
|
|
for device := range netClass {
|
|
var stats map[string]uint64
|
|
var err error
|
|
|
|
if c.deviceFilter.ignored(device) {
|
|
continue
|
|
}
|
|
|
|
linkInfo, err := c.ethtool.LinkInfo(device)
|
|
if err == nil {
|
|
c.updateSpeeds(ch, "supported", device, linkInfo.Supported)
|
|
c.updatePortInfo(ch, device, linkInfo.Supported)
|
|
c.updatePortCapabilities(ch, "supported", device, linkInfo.Supported)
|
|
c.updateSpeeds(ch, "advertised", device, linkInfo.Advertising)
|
|
c.updatePortCapabilities(ch, "advertised", device, linkInfo.Advertising)
|
|
ch <- prometheus.MustNewConstMetric(c.entry("autonegotiate"), prometheus.GaugeValue, float64(linkInfo.Autoneg), device)
|
|
} else {
|
|
if errno, ok := err.(syscall.Errno); ok {
|
|
if err == unix.EOPNOTSUPP {
|
|
level.Debug(c.logger).Log("msg", "ethtool link info error", "err", err, "device", device, "errno", uint(errno))
|
|
} else if errno != 0 {
|
|
level.Error(c.logger).Log("msg", "ethtool link info error", "err", err, "device", device, "errno", uint(errno))
|
|
}
|
|
} else {
|
|
level.Error(c.logger).Log("msg", "ethtool link info error", "err", err, "device", device)
|
|
}
|
|
}
|
|
|
|
drvInfo, err := c.ethtool.DriverInfo(device)
|
|
|
|
if err == nil {
|
|
ch <- prometheus.MustNewConstMetric(c.infoDesc, prometheus.GaugeValue, 1.0,
|
|
drvInfo.BusInfo, device, drvInfo.Driver, drvInfo.EromVersion, drvInfo.FwVersion, drvInfo.Version)
|
|
} else {
|
|
if errno, ok := err.(syscall.Errno); ok {
|
|
if err == unix.EOPNOTSUPP {
|
|
level.Debug(c.logger).Log("msg", "ethtool driver info error", "err", err, "device", device, "errno", uint(errno))
|
|
} else if errno != 0 {
|
|
level.Error(c.logger).Log("msg", "ethtool driver info error", "err", err, "device", device, "errno", uint(errno))
|
|
}
|
|
} else {
|
|
level.Error(c.logger).Log("msg", "ethtool driver info error", "err", err, "device", device)
|
|
}
|
|
}
|
|
|
|
stats, err = c.ethtool.Stats(device)
|
|
|
|
// If Stats() returns EOPNOTSUPP it doesn't support ethtool stats. Log that only at Debug level.
|
|
// Otherwise log it at Error level.
|
|
if err != nil {
|
|
if errno, ok := err.(syscall.Errno); ok {
|
|
if err == unix.EOPNOTSUPP {
|
|
level.Debug(c.logger).Log("msg", "ethtool stats error", "err", err, "device", device, "errno", uint(errno))
|
|
} else if errno != 0 {
|
|
level.Error(c.logger).Log("msg", "ethtool stats error", "err", err, "device", device, "errno", uint(errno))
|
|
}
|
|
} else {
|
|
level.Error(c.logger).Log("msg", "ethtool stats error", "err", err, "device", device)
|
|
}
|
|
}
|
|
|
|
if stats == nil || len(stats) < 1 {
|
|
// No stats returned; device does not support ethtool stats.
|
|
continue
|
|
}
|
|
|
|
// Sanitizing the metric names can lead to duplicate metric names. Therefore check for clashes beforehand.
|
|
metricFQNames := make(map[string]string)
|
|
for metric := range stats {
|
|
if !c.metricsPattern.MatchString(metric) {
|
|
continue
|
|
}
|
|
metricFQName := buildEthtoolFQName(metric)
|
|
existingMetric, exists := metricFQNames[metricFQName]
|
|
if exists {
|
|
level.Debug(c.logger).Log("msg", "dropping duplicate metric name", "device", device,
|
|
"metricFQName", metricFQName, "metric1", existingMetric, "metric2", metric)
|
|
// Keep the metric as "deleted" in the dict in case there are 3 duplicates.
|
|
metricFQNames[metricFQName] = ""
|
|
} else {
|
|
metricFQNames[metricFQName] = metric
|
|
}
|
|
}
|
|
|
|
// Sort metric names so that the test fixtures will match up
|
|
keys := make([]string, 0, len(metricFQNames))
|
|
for k := range metricFQNames {
|
|
keys = append(keys, k)
|
|
}
|
|
sort.Strings(keys)
|
|
|
|
for _, metricFQName := range keys {
|
|
metric := metricFQNames[metricFQName]
|
|
if metric == "" {
|
|
// Skip the "deleted" duplicate metrics
|
|
continue
|
|
}
|
|
|
|
val := stats[metric]
|
|
|
|
// Check to see if this metric exists; if not then create it and store it in c.entries.
|
|
entry := c.entryWithCreate(metric, metricFQName)
|
|
ch <- prometheus.MustNewConstMetric(
|
|
entry, prometheus.UntypedValue, float64(val), device)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (c *ethtoolCollector) entryWithCreate(key, metricFQName string) *prometheus.Desc {
|
|
c.entriesMutex.Lock()
|
|
defer c.entriesMutex.Unlock()
|
|
|
|
if _, ok := c.entries[key]; !ok {
|
|
c.entries[key] = prometheus.NewDesc(
|
|
metricFQName,
|
|
fmt.Sprintf("Network interface %s", key),
|
|
[]string{"device"}, nil,
|
|
)
|
|
}
|
|
|
|
return c.entries[key]
|
|
}
|
|
|
|
func (c *ethtoolCollector) entry(key string) *prometheus.Desc {
|
|
c.entriesMutex.Lock()
|
|
defer c.entriesMutex.Unlock()
|
|
return c.entries[key]
|
|
}
|