Esempio n. 1
0
func (l *LeoFS) gatherServer(
	endpoint string,
	serverType ServerType,
	acc telegraf.Accumulator,
) error {
	cmd := exec.Command("snmpwalk", "-v2c", "-cpublic", endpoint, oid)
	stdout, err := cmd.StdoutPipe()
	if err != nil {
		return err
	}
	cmd.Start()
	defer internal.WaitTimeout(cmd, time.Second*5)
	scanner := bufio.NewScanner(stdout)
	if !scanner.Scan() {
		return fmt.Errorf("Unable to retrieve the node name")
	}
	nodeName, err := retrieveTokenAfterColon(scanner.Text())
	if err != nil {
		return err
	}
	nodeNameTrimmed := strings.Trim(nodeName, "\"")
	tags := map[string]string{
		"node": nodeNameTrimmed,
	}
	i := 0

	fields := make(map[string]interface{})
	for scanner.Scan() {
		key := KeyMapping[serverType][i]
		val, err := retrieveTokenAfterColon(scanner.Text())
		if err != nil {
			return err
		}
		fVal, err := strconv.ParseFloat(val, 64)
		if err != nil {
			return fmt.Errorf("Unable to parse the value:%s, err:%s", val, err)
		}
		fields[key] = fVal
		i++
	}
	acc.AddFields("leofs", fields, tags)
	return nil
}
Esempio n. 2
0
// parse runs Sadf on the previously saved tmpFile:
//    Sadf -p -- -p <option> tmpFile
// and parses the output to add it to the telegraf.Accumulator acc.
func (s *Sysstat) parse(acc telegraf.Accumulator, option string, ts time.Time) error {
	cmd := execCommand(s.Sadf, s.sadfOptions(option)...)
	stdout, err := cmd.StdoutPipe()
	if err != nil {
		return err
	}
	if err := cmd.Start(); err != nil {
		return fmt.Errorf("running command '%s' failed: %s", strings.Join(cmd.Args, " "), err)
	}

	r := bufio.NewReader(stdout)
	csv := csv.NewReader(r)
	csv.Comma = '\t'
	csv.FieldsPerRecord = 6
	var measurement string
	// groupData to accumulate data when Group=true
	type groupData struct {
		tags   map[string]string
		fields map[string]interface{}
	}
	m := make(map[string]groupData)
	for {
		record, err := csv.Read()
		if err == io.EOF {
			break
		}
		if err != nil {
			return err
		}

		device := record[3]
		value, err := strconv.ParseFloat(record[5], 64)
		if err != nil {
			return err
		}

		tags := map[string]string{}
		if device != "-" {
			tags["device"] = device
			if addTags, ok := s.DeviceTags[device]; ok {
				for _, tag := range addTags {
					for k, v := range tag {
						tags[k] = v
					}
				}

			}
		}

		if s.Group {
			measurement = s.Options[option]
			if _, ok := m[device]; !ok {
				m[device] = groupData{
					fields: make(map[string]interface{}),
					tags:   make(map[string]string),
				}
			}
			g, _ := m[device]
			if len(g.tags) == 0 {
				for k, v := range tags {
					g.tags[k] = v
				}
			}
			g.fields[escape(record[4])] = value
		} else {
			measurement = s.Options[option] + "_" + escape(record[4])
			fields := map[string]interface{}{
				"value": value,
			}
			acc.AddFields(measurement, fields, tags, ts)
		}

	}
	if s.Group {
		for _, v := range m {
			acc.AddFields(measurement, v.fields, v.tags, ts)
		}
	}
	if err := internal.WaitTimeout(cmd, time.Second*5); err != nil {
		return fmt.Errorf("command %s failed with %s",
			strings.Join(cmd.Args, " "), err)
	}
	return nil
}