Adding upstream version 1.34.4.
Signed-off-by: Daniel Baumann <daniel@debian.org>
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4963 changed files with 677545 additions and 0 deletions
293
plugins/inputs/mdstat/mdstat.go
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293
plugins/inputs/mdstat/mdstat.go
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//go:generate ../../../tools/readme_config_includer/generator
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//go:build linux
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// Copyright 2018 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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//
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// Code has been changed since initial import.
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package mdstat
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import (
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_ "embed"
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"fmt"
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"os"
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"regexp"
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"sort"
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"strconv"
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"strings"
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/internal"
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"github.com/influxdata/telegraf/plugins/inputs"
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)
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//go:embed sample.conf
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var sampleConfig string
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var (
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statusLineRE = regexp.MustCompile(`(\d+) blocks .*\[(\d+)/(\d+)\] \[([U_]+)\]`)
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recoveryLineBlocksRE = regexp.MustCompile(`\((\d+)/\d+\)`)
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recoveryLinePctRE = regexp.MustCompile(`= +(.+)%`)
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recoveryLineFinishRE = regexp.MustCompile(`finish=(.+)min`)
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recoveryLineSpeedRE = regexp.MustCompile(`speed=(.+)[A-Z]`)
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componentDeviceRE = regexp.MustCompile(`(.*)\[\d+\]`)
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)
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type Mdstat struct {
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FileName string `toml:"file_name"`
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}
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type statusLine struct {
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active int64
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total int64
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size int64
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down int64
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}
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type recoveryLine struct {
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syncedBlocks int64
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pct float64
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finish float64
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speed float64
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}
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func evalStatusLine(deviceLine, statusLineStr string) (statusLine, error) {
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sizeFields := strings.Fields(statusLineStr)
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if len(sizeFields) < 1 {
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return statusLine{active: 0, total: 0, down: 0, size: 0},
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fmt.Errorf("statusLine empty? %q", statusLineStr)
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}
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sizeStr := sizeFields[0]
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size, err := strconv.ParseInt(sizeStr, 10, 64)
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if err != nil {
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return statusLine{active: 0, total: 0, down: 0, size: 0},
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fmt.Errorf("unexpected statusLine %q: %w", statusLineStr, err)
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}
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if strings.Contains(deviceLine, "raid0") || strings.Contains(deviceLine, "linear") {
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// In the device deviceLine, only disks have a number associated with them in [].
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total := int64(strings.Count(deviceLine, "["))
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return statusLine{active: total, total: total, down: 0, size: size}, nil
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}
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if strings.Contains(deviceLine, "inactive") {
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return statusLine{active: 0, total: 0, down: 0, size: size}, nil
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}
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matches := statusLineRE.FindStringSubmatch(statusLineStr)
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if len(matches) != 5 {
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return statusLine{active: 0, total: 0, down: 0, size: size},
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fmt.Errorf("couldn't find all the substring matches: %s", statusLineStr)
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}
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total, err := strconv.ParseInt(matches[2], 10, 64)
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if err != nil {
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return statusLine{active: 0, total: 0, down: 0, size: size},
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fmt.Errorf("unexpected statusLine %q: %w", statusLineStr, err)
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}
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active, err := strconv.ParseInt(matches[3], 10, 64)
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if err != nil {
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return statusLine{active: 0, total: total, down: 0, size: size},
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fmt.Errorf("unexpected statusLine %q: %w", statusLineStr, err)
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}
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down := int64(strings.Count(matches[4], "_"))
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return statusLine{active: active, total: total, size: size, down: down}, nil
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}
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func evalRecoveryLine(recoveryLineStr string) (recoveryLine, error) {
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// Get count of completed vs. total blocks
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matches := recoveryLineBlocksRE.FindStringSubmatch(recoveryLineStr)
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if len(matches) != 2 {
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return recoveryLine{syncedBlocks: 0, pct: 0, finish: 0, speed: 0},
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fmt.Errorf("unexpected recoveryLine matching syncedBlocks: %s", recoveryLineStr)
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}
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syncedBlocks, err := strconv.ParseInt(matches[1], 10, 64)
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if err != nil {
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return recoveryLine{syncedBlocks: 0, pct: 0, finish: 0, speed: 0},
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fmt.Errorf("error parsing int from recoveryLine %q: %w", recoveryLineStr, err)
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}
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// Get percentage complete
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matches = recoveryLinePctRE.FindStringSubmatch(recoveryLineStr)
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if len(matches) != 2 {
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return recoveryLine{syncedBlocks: syncedBlocks, pct: 0, finish: 0, speed: 0},
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fmt.Errorf("unexpected recoveryLine matching percentage: %s", recoveryLineStr)
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}
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pct, err := strconv.ParseFloat(matches[1], 64)
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if err != nil {
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return recoveryLine{syncedBlocks: syncedBlocks, pct: 0, finish: 0, speed: 0},
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fmt.Errorf("error parsing float from recoveryLine %q: %w", recoveryLineStr, err)
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}
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// Get time expected left to complete
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matches = recoveryLineFinishRE.FindStringSubmatch(recoveryLineStr)
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if len(matches) != 2 {
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return recoveryLine{syncedBlocks: syncedBlocks, pct: pct, finish: 0, speed: 0},
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fmt.Errorf("unexpected recoveryLine matching est. finish time: %s", recoveryLineStr)
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}
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finish, err := strconv.ParseFloat(matches[1], 64)
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if err != nil {
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return recoveryLine{syncedBlocks: syncedBlocks, pct: pct, finish: 0, speed: 0},
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fmt.Errorf("error parsing float from recoveryLine %q: %w", recoveryLineStr, err)
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}
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// Get recovery speed
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matches = recoveryLineSpeedRE.FindStringSubmatch(recoveryLineStr)
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if len(matches) != 2 {
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return recoveryLine{syncedBlocks: syncedBlocks, pct: pct, finish: finish, speed: 0},
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fmt.Errorf("unexpected recoveryLine matching speed: %s", recoveryLineStr)
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}
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speed, err := strconv.ParseFloat(matches[1], 64)
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if err != nil {
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return recoveryLine{syncedBlocks: syncedBlocks, pct: pct, finish: finish, speed: 0},
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fmt.Errorf("error parsing float from recoveryLine %q: %w", recoveryLineStr, err)
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}
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return recoveryLine{syncedBlocks: syncedBlocks, pct: pct, finish: finish, speed: speed}, nil
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}
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func evalComponentDevices(deviceFields []string) string {
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mdComponentDevices := make([]string, 0)
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if len(deviceFields) > 3 {
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for _, field := range deviceFields[4:] {
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match := componentDeviceRE.FindStringSubmatch(field)
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if match == nil {
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continue
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}
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mdComponentDevices = append(mdComponentDevices, match[1])
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}
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}
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// Ensure no churn on tag ordering change
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sort.Strings(mdComponentDevices)
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return strings.Join(mdComponentDevices, ",")
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}
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func (*Mdstat) SampleConfig() string {
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return sampleConfig
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}
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func (k *Mdstat) Gather(acc telegraf.Accumulator) error {
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data, err := k.getProcMdstat()
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if err != nil {
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return err
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}
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lines := strings.Split(string(data), "\n")
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// empty file should return nothing
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if len(lines) < 3 {
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return nil
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}
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for i, line := range lines {
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if strings.TrimSpace(line) == "" || line[0] == ' ' || strings.HasPrefix(line, "Personalities") || strings.HasPrefix(line, "unused") {
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continue
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}
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deviceFields := strings.Fields(line)
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if len(deviceFields) < 3 || len(lines) <= i+3 {
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return fmt.Errorf("not enough fields in mdline (expected at least 3): %s", line)
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}
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mdName := deviceFields[0] // mdx
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state := deviceFields[2] // active or inactive
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/*
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Failed disks have the suffix (F) & Spare disks have the suffix (S).
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Failed disks may also not be marked separately...
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*/
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fail := int64(strings.Count(line, "(F)"))
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spare := int64(strings.Count(line, "(S)"))
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sts, err := evalStatusLine(lines[i], lines[i+1])
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if err != nil {
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return fmt.Errorf("error parsing md device lines: %w", err)
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}
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syncLineIdx := i + 2
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if strings.Contains(lines[i+2], "bitmap") { // skip bitmap line
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syncLineIdx++
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}
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var rcvry recoveryLine
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// If device is syncing at the moment, get the number of currently
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// synced bytes, otherwise that number equals the size of the device.
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rcvry.syncedBlocks = sts.size
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recovering := strings.Contains(lines[syncLineIdx], "recovery")
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resyncing := strings.Contains(lines[syncLineIdx], "resync")
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checking := strings.Contains(lines[syncLineIdx], "check")
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// Append recovery and resyncing state info.
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if recovering || resyncing || checking {
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if recovering {
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state = "recovering"
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} else if checking {
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state = "checking"
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} else {
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state = "resyncing"
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}
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// Handle case when resync=PENDING or resync=DELAYED.
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if strings.Contains(lines[syncLineIdx], "PENDING") || strings.Contains(lines[syncLineIdx], "DELAYED") {
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rcvry.syncedBlocks = 0
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} else {
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var err error
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rcvry, err = evalRecoveryLine(lines[syncLineIdx])
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if err != nil {
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return fmt.Errorf("error parsing sync line in md device %q: %w", mdName, err)
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}
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}
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}
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fields := map[string]interface{}{
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"DisksActive": sts.active,
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"DisksFailed": fail,
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"DisksSpare": spare,
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"DisksTotal": sts.total,
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"DisksDown": sts.down,
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"BlocksTotal": sts.size,
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"BlocksSynced": rcvry.syncedBlocks,
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"BlocksSyncedPct": rcvry.pct,
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"BlocksSyncedFinishTime": rcvry.finish,
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"BlocksSyncedSpeed": rcvry.speed,
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}
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tags := map[string]string{
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"Name": mdName,
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"ActivityState": state,
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"Devices": evalComponentDevices(deviceFields),
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}
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acc.AddFields("mdstat", fields, tags)
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}
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return nil
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}
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func (k *Mdstat) getProcMdstat() ([]byte, error) {
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var mdStatFile string
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if k.FileName == "" {
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mdStatFile = internal.GetProcPath() + "/mdstat"
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} else {
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mdStatFile = k.FileName
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}
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if _, err := os.Stat(mdStatFile); os.IsNotExist(err) {
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return nil, fmt.Errorf("mdstat: %s does not exist", mdStatFile)
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} else if err != nil {
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return nil, err
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}
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data, err := os.ReadFile(mdStatFile)
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if err != nil {
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return nil, err
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}
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return data, nil
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}
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func init() {
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inputs.Add("mdstat", func() telegraf.Input { return &Mdstat{} })
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}
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