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Add Collector for S.M.A.R.T disk data
This commit is contained in:
Thomas Roehl
parent
96b4a2aec1
commit
e58eff2fac
220
collectors/smartmonMetric.go
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220
collectors/smartmonMetric.go
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package collectors
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import (
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"encoding/json"
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"os/exec"
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"time"
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cclog "github.com/ClusterCockpit/cc-metric-collector/internal/ccLogger"
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lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
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)
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type SmartMonCollectorConfig struct {
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UseSudo bool `json:"use_sudo"`
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ExcludeDevices []string `json:"exclude_devices"`
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}
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type SmartMonCollector struct {
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metricCollector
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config SmartMonCollectorConfig // the configuration structure
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meta map[string]string // default meta information
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tags map[string]string // default tags
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devices []string // smartmon devices
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sudoCmd string // Full path to 'sudo' command
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smartCtlCmd string // Full path to 'smartctl' command
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}
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func (m *SmartMonCollector) getSmartmonDevices() error {
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var command *exec.Cmd
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var scan struct {
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Devices []struct {
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Name string `json:"name"`
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Type string `json:"type"`
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} `json:"devices"`
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}
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m.devices = make([]string, 0)
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if m.config.UseSudo {
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command = exec.Command(m.sudoCmd, m.smartCtlCmd, "--scan", "-j")
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} else {
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command = exec.Command(m.smartCtlCmd, "--scan", "-j")
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}
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command.Wait()
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stdout, err := command.Output()
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if err != nil {
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return err
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}
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err = json.Unmarshal(stdout, &scan)
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if err != nil {
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return err
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}
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for _, d := range scan.Devices {
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if len(d.Name) > 0 {
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m.devices = append(m.devices, d.Name)
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}
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}
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return nil
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}
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func (m *SmartMonCollector) Init(config json.RawMessage) error {
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var err error = nil
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m.name = "SmartMonCollector"
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m.setup()
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m.parallel = true
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m.meta = map[string]string{"source": m.name, "group": "Disk"}
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m.tags = map[string]string{"type": "node", "stype": "disk"}
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// Read in the JSON configuration
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if len(config) > 0 {
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err = json.Unmarshal(config, &m.config)
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if err != nil {
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cclog.ComponentError(m.name, "Error reading config:", err.Error())
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return err
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}
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}
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if m.config.UseSudo {
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p, err := exec.LookPath("sudo")
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if err != nil {
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return err
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}
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m.sudoCmd = p
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}
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p, err := exec.LookPath("smartctl")
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if err != nil {
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return err
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}
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m.smartCtlCmd = p
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err = m.getSmartmonDevices()
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if err != nil {
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return err
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}
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m.init = true
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return err
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}
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type SmartMonData struct {
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SerialNumber string `json:"serial_number"`
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UserCapacity struct {
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Blocks int `json:"blocks"`
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Bytes int `json:"bytes"`
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} `json:"user_capacity"`
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HealthLog struct {
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Temperature int `json:"temperature"`
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PercentageUsed int `json:"percentage_used"`
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AvailableSpare int `json:"available_spare"`
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DataUnitsRead int `json:"data_units_read"`
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DataUnitsWrite int `json:"data_units_written"`
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HostReads int `json:"host_reads"`
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HostWrites int `json:"host_writes"`
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PowerCycles int `json:"power_cycles"`
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PowerOnHours int `json:"power_on_hours"`
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UnsafeShutdowns int `json:"unsafe_shutdowns"`
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MediaErrors int `json:"media_errors"`
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NumErrorLogEntries int `json:"num_err_log_entries"`
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WarnTempTime int `json:"warning_temp_time"`
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CriticalTempTime int `json:"critical_comp_time"`
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} `json:"nvme_smart_health_information_log"`
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}
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func (m *SmartMonCollector) Read(interval time.Duration, output chan lp.CCMetric) {
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timestamp := time.Now()
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for _, d := range m.devices {
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var command *exec.Cmd
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var data SmartMonData
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if m.config.UseSudo {
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command = exec.Command(m.sudoCmd, m.smartCtlCmd, "-j", "-a", d)
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} else {
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command = exec.Command(m.smartCtlCmd, "-j", "-a", d)
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}
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command.Wait()
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stdout, err := command.Output()
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if err != nil {
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cclog.ComponentError(m.name, "cannot read data for device", d)
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continue
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}
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err = json.Unmarshal(stdout, &data)
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if err != nil {
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cclog.ComponentError(m.name, "cannot unmarshal data for device", d)
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continue
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}
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y, err := lp.New("smartmon_temp", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.Temperature}, timestamp)
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if err == nil {
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y.AddTag("stype-id", d)
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y.AddMeta("unit", "degC")
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output <- y
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}
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y, err = lp.New("smartmon_percent_used", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.PercentageUsed}, timestamp)
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if err == nil {
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y.AddTag("stype-id", d)
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y.AddMeta("unit", "percent")
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output <- y
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}
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y, err = lp.New("smartmon_avail_spare", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.AvailableSpare}, timestamp)
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if err == nil {
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y.AddTag("stype-id", d)
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y.AddMeta("unit", "percent")
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output <- y
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}
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y, err = lp.New("smartmon_data_units_read", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.DataUnitsRead}, timestamp)
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if err == nil {
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y.AddTag("stype-id", d)
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output <- y
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}
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y, err = lp.New("smartmon_data_units_write", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.DataUnitsWrite}, timestamp)
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if err == nil {
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y.AddTag("stype-id", d)
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output <- y
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}
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y, err = lp.New("smartmon_host_reads", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.HostReads}, timestamp)
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if err == nil {
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y.AddTag("stype-id", d)
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output <- y
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}
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y, err = lp.New("smartmon_host_writes", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.HostWrites}, timestamp)
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if err == nil {
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y.AddTag("stype-id", d)
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output <- y
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}
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y, err = lp.New("smartmon_power_cycles", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.PowerCycles}, timestamp)
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if err == nil {
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y.AddTag("stype-id", d)
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output <- y
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}
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y, err = lp.New("smartmon_power_on", m.tags, m.meta, map[string]interface{}{"value": int64(data.HealthLog.PowerOnHours) * 3600}, timestamp)
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if err == nil {
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y.AddTag("stype-id", d)
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y.AddMeta("unit", "seconds")
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output <- y
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}
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y, err = lp.New("smartmon_unsafe_shutdowns", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.UnsafeShutdowns}, timestamp)
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if err == nil {
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y.AddTag("stype-id", d)
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output <- y
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}
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y, err = lp.New("smartmon_media_errors", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.MediaErrors}, timestamp)
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if err == nil {
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y.AddTag("stype-id", d)
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output <- y
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}
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y, err = lp.New("smartmon_errlog_entries", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.NumErrorLogEntries}, timestamp)
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if err == nil {
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y.AddTag("stype-id", d)
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output <- y
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}
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y, err = lp.New("smartmon_warn_temp_time", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.WarnTempTime}, timestamp)
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if err == nil {
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y.AddTag("stype-id", d)
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output <- y
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}
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y, err = lp.New("smartmon_crit_temp_time", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.CriticalTempTime}, timestamp)
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if err == nil {
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y.AddTag("stype-id", d)
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output <- y
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}
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}
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}
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func (m *SmartMonCollector) Close() {
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m.init = false
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}
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29
collectors/smartmonMetric.md
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29
collectors/smartmonMetric.md
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@ -0,0 +1,29 @@
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## `smartmon` collector
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```json
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"smartmon": {
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"use_sudo" : true,
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"exclude_devices": [
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"/dev/sda",
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]
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}
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```
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The `smartmon` collector reads the data from the command `smartctl`. It retrieves S.M.A.R.T data from disks
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Metrics:
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* `smartmon_temp`: Temperature of the device (`unit=degC`)
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* `smartmon_avail_spare`: Amount of spare left (`unit=percent`)
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* `smartmon_percent_used`: Percentage of the device is used (`unit=percent`)
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* `smartmon_data_units_read`: Read data units
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* `smartmon_data_units_write`: Written data units
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* `smartmon_host_reads`: Read operations
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* `smartmon_host_writes`: Write operations
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* `smartmon_power_cycles`: Number of power cycles
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* `smartmon_power_on`: Seconds the device is powered on (`unit=seconds`)
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* `smartmon_unsafe_shutdowns`: Count of unsafe shutdowns
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* `smartmon_media_errors`: Media errors of the device
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* `smartmon_errlog_entries`: Error log entries
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* `smartmon_warn_temp_time`: Time above the warning temperature threshold
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* `smartmon_crit_temp_time`: Time above the critical temperature threshold
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