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Add nvme collector
Add a collector for NVMes to expose the firmware versions. This requires procfs >= 0.7.0. Fixes #1891 Signed-off-by: Benjamin Drung <benjamin.drung@ionos.com>
This commit is contained in:
Benjamin Drung
parent
13be860e25
commit
b23146db3f
@ -113,6 +113,7 @@ netdev | Exposes network interface statistics such as bytes transferred. | Darwi
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netstat | Exposes network statistics from `/proc/net/netstat`. This is the same information as `netstat -s`. | Linux
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nfs | Exposes NFS client statistics from `/proc/net/rpc/nfs`. This is the same information as `nfsstat -c`. | Linux
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nfsd | Exposes NFS kernel server statistics from `/proc/net/rpc/nfsd`. This is the same information as `nfsstat -s`. | Linux
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nvme | Exposes NVMe info from `/sys/class/nvme/` | Linux
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powersupplyclass | Exposes Power Supply statistics from `/sys/class/power_supply` | Linux
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pressure | Exposes pressure stall statistics from `/proc/pressure/`. | Linux (kernel 4.20+ and/or [CONFIG\_PSI](https://www.kernel.org/doc/html/latest/accounting/psi.html))
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rapl | Exposes various statistics from `/sys/class/powercap`. | Linux
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@ -2439,6 +2439,9 @@ node_nfsd_server_rpcs_total 18628
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# HELP node_nfsd_server_threads Total number of NFSd kernel threads that are running.
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# TYPE node_nfsd_server_threads gauge
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node_nfsd_server_threads 8
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# HELP node_nvme_info Non-numeric data from /sys/class/nvme/<device>, value is always 1.
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# TYPE node_nvme_info gauge
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node_nvme_info{device="nvme0",firmware_revision="1B2QEXP7",model="Samsung SSD 970 PRO 512GB",serial="S680HF8N190894I",state="live"} 1
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# HELP node_power_supply_capacity capacity value of /sys/class/power_supply/<power_supply>.
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# TYPE node_power_supply_capacity gauge
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node_power_supply_capacity{power_supply="BAT0"} 81
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@ -2586,6 +2589,7 @@ node_scrape_collector_success{collector="netdev"} 1
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node_scrape_collector_success{collector="netstat"} 1
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node_scrape_collector_success{collector="nfs"} 1
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node_scrape_collector_success{collector="nfsd"} 1
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node_scrape_collector_success{collector="nvme"} 1
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node_scrape_collector_success{collector="powersupplyclass"} 1
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node_scrape_collector_success{collector="pressure"} 1
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node_scrape_collector_success{collector="processes"} 1
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@ -2637,6 +2637,9 @@ node_nfsd_server_rpcs_total 18628
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# HELP node_nfsd_server_threads Total number of NFSd kernel threads that are running.
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# TYPE node_nfsd_server_threads gauge
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node_nfsd_server_threads 8
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# HELP node_nvme_info Non-numeric data from /sys/class/nvme/<device>, value is always 1.
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# TYPE node_nvme_info gauge
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node_nvme_info{device="nvme0",firmware_revision="1B2QEXP7",model="Samsung SSD 970 PRO 512GB",serial="S680HF8N190894I",state="live"} 1
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# HELP node_power_supply_capacity capacity value of /sys/class/power_supply/<power_supply>.
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# TYPE node_power_supply_capacity gauge
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node_power_supply_capacity{power_supply="BAT0"} 81
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@ -2787,6 +2790,7 @@ node_scrape_collector_success{collector="netdev"} 1
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node_scrape_collector_success{collector="netstat"} 1
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node_scrape_collector_success{collector="nfs"} 1
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node_scrape_collector_success{collector="nfsd"} 1
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node_scrape_collector_success{collector="nvme"} 1
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node_scrape_collector_success{collector="powersupplyclass"} 1
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node_scrape_collector_success{collector="pressure"} 1
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node_scrape_collector_success{collector="processes"} 1
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@ -1124,6 +1124,32 @@ Lines: 1
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1
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Mode: 644
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# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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Directory: sys/class/nvme
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Mode: 755
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# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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Directory: sys/class/nvme/nvme0
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Mode: 755
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# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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Path: sys/class/nvme/nvme0/firmware_rev
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Lines: 1
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1B2QEXP7
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Mode: 444
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# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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Path: sys/class/nvme/nvme0/model
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Lines: 1
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Samsung SSD 970 PRO 512GB
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Mode: 444
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# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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Path: sys/class/nvme/nvme0/serial
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Lines: 1
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S680HF8N190894I
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Mode: 444
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# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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Path: sys/class/nvme/nvme0/state
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Lines: 1
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live
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Mode: 444
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# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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Directory: sys/class/power_supply
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Mode: 755
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# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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74
collector/nvme_linux.go
Normal file
74
collector/nvme_linux.go
Normal file
@ -0,0 +1,74 @@
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// 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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// +build linux
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// +build !nonvme
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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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"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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)
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type nvmeCollector struct {
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fs sysfs.FS
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logger log.Logger
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}
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func init() {
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registerCollector("nvme", defaultEnabled, NewNVMeCollector)
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}
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// NewNVMeCollector returns a new Collector exposing NVMe stats.
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func NewNVMeCollector(logger log.Logger) (Collector, 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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return &nvmeCollector{
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fs: fs,
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logger: logger,
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}, nil
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}
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func (c *nvmeCollector) Update(ch chan<- prometheus.Metric) error {
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devices, err := c.fs.NVMeClass()
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if err != nil {
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if errors.Is(err, os.ErrNotExist) {
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level.Debug(c.logger).Log("msg", "nvme statistics not found, skipping")
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return ErrNoData
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}
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return fmt.Errorf("error obtaining NVMe class info: %w", err)
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}
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for _, device := range devices {
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infoDesc := prometheus.NewDesc(
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prometheus.BuildFQName(namespace, "nvme", "info"),
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"Non-numeric data from /sys/class/nvme/<device>, value is always 1.",
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[]string{"device", "firmware_revision", "model", "serial", "state"},
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nil,
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)
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infoValue := 1.0
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ch <- prometheus.MustNewConstMetric(infoDesc, prometheus.GaugeValue, infoValue, device.Name, device.FirmwareRevision, device.Model, device.Serial, device.State)
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}
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return nil
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}
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2
go.mod
2
go.mod
@ -16,7 +16,7 @@ require (
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github.com/prometheus/client_model v0.2.0
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github.com/prometheus/common v0.26.0
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github.com/prometheus/exporter-toolkit v0.5.1
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github.com/prometheus/procfs v0.6.0
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github.com/prometheus/procfs v0.7.0
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github.com/safchain/ethtool v0.0.0-20200804214954-8f958a28363a
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github.com/siebenmann/go-kstat v0.0.0-20200303194639-4e8294f9e9d5
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github.com/soundcloud/go-runit v0.0.0-20150630195641-06ad41a06c4a
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4
go.sum
4
go.sum
@ -281,8 +281,8 @@ github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsT
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github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+GxbHq6oeK9A=
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github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
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github.com/prometheus/procfs v0.2.0/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
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github.com/prometheus/procfs v0.6.0 h1:mxy4L2jP6qMonqmq+aTtOx1ifVWUgG/TAmntgbh3xv4=
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github.com/prometheus/procfs v0.6.0/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
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github.com/prometheus/procfs v0.7.0 h1:OQZ41sZU9XkRpzrz8/TD0EldH/Rwbddkdu5wDyUwzfE=
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github.com/prometheus/procfs v0.7.0/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1xBZuNvfVA=
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github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
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github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
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github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
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