diff options
Diffstat (limited to 'vendor/github.com/prometheus/procfs/mdstat.go')
-rw-r--r-- | vendor/github.com/prometheus/procfs/mdstat.go | 105 |
1 files changed, 77 insertions, 28 deletions
diff --git a/vendor/github.com/prometheus/procfs/mdstat.go b/vendor/github.com/prometheus/procfs/mdstat.go index 4c4493bfa..f0b9e5f75 100644 --- a/vendor/github.com/prometheus/procfs/mdstat.go +++ b/vendor/github.com/prometheus/procfs/mdstat.go @@ -22,9 +22,12 @@ import ( ) var ( - statusLineRE = regexp.MustCompile(`(\d+) blocks .*\[(\d+)/(\d+)\] \[[U_]+\]`) - recoveryLineRE = regexp.MustCompile(`\((\d+)/\d+\)`) - componentDeviceRE = regexp.MustCompile(`(.*)\[\d+\]`) + statusLineRE = regexp.MustCompile(`(\d+) blocks .*\[(\d+)/(\d+)\] \[([U_]+)\]`) + recoveryLineBlocksRE = regexp.MustCompile(`\((\d+)/\d+\)`) + recoveryLinePctRE = regexp.MustCompile(`= (.+)%`) + recoveryLineFinishRE = regexp.MustCompile(`finish=(.+)min`) + recoveryLineSpeedRE = regexp.MustCompile(`speed=(.+)[A-Z]`) + componentDeviceRE = regexp.MustCompile(`(.*)\[\d+\]`) ) // MDStat holds info parsed from /proc/mdstat. @@ -39,12 +42,20 @@ type MDStat struct { DisksTotal int64 // Number of failed disks. DisksFailed int64 + // Number of "down" disks. (the _ indicator in the status line) + DisksDown int64 // Spare disks in the device. DisksSpare int64 // Number of blocks the device holds. BlocksTotal int64 // Number of blocks on the device that are in sync. BlocksSynced int64 + // progress percentage of current sync + BlocksSyncedPct float64 + // estimated finishing time for current sync (in minutes) + BlocksSyncedFinishTime float64 + // current sync speed (in Kilobytes/sec) + BlocksSyncedSpeed float64 // Name of md component devices Devices []string } @@ -91,7 +102,7 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) { // Failed disks have the suffix (F) & Spare disks have the suffix (S). fail := int64(strings.Count(line, "(F)")) spare := int64(strings.Count(line, "(S)")) - active, total, size, err := evalStatusLine(lines[i], lines[i+1]) + active, total, down, size, err := evalStatusLine(lines[i], lines[i+1]) if err != nil { return nil, fmt.Errorf("error parsing md device lines: %w", err) @@ -105,6 +116,9 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) { // If device is syncing at the moment, get the number of currently // synced bytes, otherwise that number equals the size of the device. syncedBlocks := size + speed := float64(0) + finish := float64(0) + pct := float64(0) recovering := strings.Contains(lines[syncLineIdx], "recovery") resyncing := strings.Contains(lines[syncLineIdx], "resync") checking := strings.Contains(lines[syncLineIdx], "check") @@ -124,7 +138,7 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) { strings.Contains(lines[syncLineIdx], "DELAYED") { syncedBlocks = 0 } else { - syncedBlocks, err = evalRecoveryLine(lines[syncLineIdx]) + syncedBlocks, pct, finish, speed, err = evalRecoveryLine(lines[syncLineIdx]) if err != nil { return nil, fmt.Errorf("error parsing sync line in md device %q: %w", mdName, err) } @@ -132,69 +146,104 @@ func parseMDStat(mdStatData []byte) ([]MDStat, error) { } mdStats = append(mdStats, MDStat{ - Name: mdName, - ActivityState: state, - DisksActive: active, - DisksFailed: fail, - DisksSpare: spare, - DisksTotal: total, - BlocksTotal: size, - BlocksSynced: syncedBlocks, - Devices: evalComponentDevices(deviceFields), + Name: mdName, + ActivityState: state, + DisksActive: active, + DisksFailed: fail, + DisksDown: down, + DisksSpare: spare, + DisksTotal: total, + BlocksTotal: size, + BlocksSynced: syncedBlocks, + BlocksSyncedPct: pct, + BlocksSyncedFinishTime: finish, + BlocksSyncedSpeed: speed, + Devices: evalComponentDevices(deviceFields), }) } return mdStats, nil } -func evalStatusLine(deviceLine, statusLine string) (active, total, size int64, err error) { +func evalStatusLine(deviceLine, statusLine string) (active, total, down, size int64, err error) { sizeStr := strings.Fields(statusLine)[0] size, err = strconv.ParseInt(sizeStr, 10, 64) if err != nil { - return 0, 0, 0, fmt.Errorf("unexpected statusLine %q: %w", statusLine, err) + return 0, 0, 0, 0, fmt.Errorf("unexpected statusLine %q: %w", statusLine, err) } if strings.Contains(deviceLine, "raid0") || strings.Contains(deviceLine, "linear") { // In the device deviceLine, only disks have a number associated with them in []. total = int64(strings.Count(deviceLine, "[")) - return total, total, size, nil + return total, total, 0, size, nil } if strings.Contains(deviceLine, "inactive") { - return 0, 0, size, nil + return 0, 0, 0, size, nil } matches := statusLineRE.FindStringSubmatch(statusLine) - if len(matches) != 4 { - return 0, 0, 0, fmt.Errorf("couldn't find all the substring matches: %s", statusLine) + if len(matches) != 5 { + return 0, 0, 0, 0, fmt.Errorf("couldn't find all the substring matches: %s", statusLine) } total, err = strconv.ParseInt(matches[2], 10, 64) if err != nil { - return 0, 0, 0, fmt.Errorf("unexpected statusLine %q: %w", statusLine, err) + return 0, 0, 0, 0, fmt.Errorf("unexpected statusLine %q: %w", statusLine, err) } active, err = strconv.ParseInt(matches[3], 10, 64) if err != nil { - return 0, 0, 0, fmt.Errorf("unexpected statusLine %q: %w", statusLine, err) + return 0, 0, 0, 0, fmt.Errorf("unexpected statusLine %q: %w", statusLine, err) } + down = int64(strings.Count(matches[4], "_")) - return active, total, size, nil + return active, total, down, size, nil } -func evalRecoveryLine(recoveryLine string) (syncedBlocks int64, err error) { - matches := recoveryLineRE.FindStringSubmatch(recoveryLine) +func evalRecoveryLine(recoveryLine string) (syncedBlocks int64, pct float64, finish float64, speed float64, err error) { + matches := recoveryLineBlocksRE.FindStringSubmatch(recoveryLine) if len(matches) != 2 { - return 0, fmt.Errorf("unexpected recoveryLine: %s", recoveryLine) + return 0, 0, 0, 0, fmt.Errorf("unexpected recoveryLine: %s", recoveryLine) } syncedBlocks, err = strconv.ParseInt(matches[1], 10, 64) if err != nil { - return 0, fmt.Errorf("error parsing int from recoveryLine %q: %w", recoveryLine, err) + return 0, 0, 0, 0, fmt.Errorf("error parsing int from recoveryLine %q: %w", recoveryLine, err) } - return syncedBlocks, nil + // Get percentage complete + matches = recoveryLinePctRE.FindStringSubmatch(recoveryLine) + if len(matches) != 2 { + return syncedBlocks, 0, 0, 0, fmt.Errorf("unexpected recoveryLine matching percentage: %s", recoveryLine) + } + pct, err = strconv.ParseFloat(strings.TrimSpace(matches[1]), 64) + if err != nil { + return syncedBlocks, 0, 0, 0, fmt.Errorf("error parsing float from recoveryLine %q: %w", recoveryLine, err) + } + + // Get time expected left to complete + matches = recoveryLineFinishRE.FindStringSubmatch(recoveryLine) + if len(matches) != 2 { + return syncedBlocks, pct, 0, 0, fmt.Errorf("unexpected recoveryLine matching est. finish time: %s", recoveryLine) + } + finish, err = strconv.ParseFloat(matches[1], 64) + if err != nil { + return syncedBlocks, pct, 0, 0, fmt.Errorf("error parsing float from recoveryLine %q: %w", recoveryLine, err) + } + + // Get recovery speed + matches = recoveryLineSpeedRE.FindStringSubmatch(recoveryLine) + if len(matches) != 2 { + return syncedBlocks, pct, finish, 0, fmt.Errorf("unexpected recoveryLine matching speed: %s", recoveryLine) + } + speed, err = strconv.ParseFloat(matches[1], 64) + if err != nil { + return syncedBlocks, pct, finish, 0, fmt.Errorf("error parsing float from recoveryLine %q: %w", recoveryLine, err) + } + + return syncedBlocks, pct, finish, speed, nil } func evalComponentDevices(deviceFields []string) []string { |