Set 1.4.1 release date in changelog

(cherry picked from commit fd702e6bb8)

CHANGELOG.md

@@ -1,4 +1,17 @@
-## v1.4 [unreleased]
+## v1.4.1 [2017-09-26]
+
+### Bugfixes
+
+- [#3167](https://github.com/influxdata/telegraf/issues/3167): Fix MQTT input exits if Broker is not available on startup.
+- [#3217](https://github.com/influxdata/telegraf/issues/3217): Fix optional field value conversions in fluentd input.
+- [#3227](https://github.com/influxdata/telegraf/issues/3227): Whitelist allowed char classes for opentsdb output.
+- [#3232](https://github.com/influxdata/telegraf/issues/3232): Fix counter and gauge metric types.
+- [#3235](https://github.com/influxdata/telegraf/issues/3235): Fix skipped line with empty target in iptables.
+- [#3175](https://github.com/influxdata/telegraf/issues/3175): Fix duplicate keys in perf counters sqlserver query.
+- [#3230](https://github.com/influxdata/telegraf/issues/3230): Fix panic in statsd p100 calculation.
+- [#3242](https://github.com/influxdata/telegraf/issues/3242): Fix arm64 packages contain 32-bit executable.
+
+## v1.4 [2017-09-05]
 
 ### Release Notes
 
@@ -103,6 +116,7 @@
 - [#2672](https://github.com/influxdata/telegraf/issues/2672): Fix NSQ input plugin when used with version 1.0.0-compat.
 - [#2523](https://github.com/influxdata/telegraf/issues/2523): Added CloudWatch metric constraint validation.
 - [#3179](https://github.com/influxdata/telegraf/issues/3179): Skip non-numerical values in graphite format.
+- [#3187](https://github.com/influxdata/telegraf/issues/3187): Fix panic when handling string fields with escapes.
 
 ## v1.3.5 [2017-07-26]
 

plugins/inputs/fluentd/fluentd.go

@@ -148,15 +148,15 @@ func (h *Fluentd) Gather(acc telegraf.Accumulator) error {
 			}
 
 			if p.BufferQueueLength != nil {
-				tmpFields["buffer_queue_length"] = p.BufferQueueLength
+				tmpFields["buffer_queue_length"] = *p.BufferQueueLength
 
 			}
 			if p.RetryCount != nil {
-				tmpFields["retry_count"] = p.RetryCount
+				tmpFields["retry_count"] = *p.RetryCount
 			}
 
 			if p.BufferTotalQueuedSize != nil {
-				tmpFields["buffer_total_queued_size"] = p.BufferTotalQueuedSize
+				tmpFields["buffer_total_queued_size"] = *p.BufferTotalQueuedSize
 			}
 
 			if !((p.BufferQueueLength == nil) && (p.RetryCount == nil) && (p.BufferTotalQueuedSize == nil)) {

plugins/inputs/fluentd/fluentd_test.go

@@ -122,12 +122,6 @@ func Test_parse(t *testing.T) {
 }
 
 func Test_Gather(t *testing.T) {
-	if testing.Short() {
-		t.Skip("Skipping Gather function test")
-	}
-
-	t.Log("Testing Gather function")
-
 	t.Logf("Start HTTP mock (%s) with sampleJSON", fluentdTest.Endpoint)
 
 	ts := httptest.NewUnstartedServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
@@ -157,13 +151,13 @@ func Test_Gather(t *testing.T) {
 	assert.Equal(t, expectedOutput[0].PluginID, acc.Metrics[0].Tags["plugin_id"])
 	assert.Equal(t, expectedOutput[0].PluginType, acc.Metrics[0].Tags["plugin_type"])
 	assert.Equal(t, expectedOutput[0].PluginCategory, acc.Metrics[0].Tags["plugin_category"])
-	assert.Equal(t, expectedOutput[0].RetryCount, acc.Metrics[0].Fields["retry_count"])
+	assert.Equal(t, *expectedOutput[0].RetryCount, acc.Metrics[0].Fields["retry_count"])
 
 	assert.Equal(t, expectedOutput[1].PluginID, acc.Metrics[1].Tags["plugin_id"])
 	assert.Equal(t, expectedOutput[1].PluginType, acc.Metrics[1].Tags["plugin_type"])
 	assert.Equal(t, expectedOutput[1].PluginCategory, acc.Metrics[1].Tags["plugin_category"])
-	assert.Equal(t, expectedOutput[1].RetryCount, acc.Metrics[1].Fields["retry_count"])
-	assert.Equal(t, expectedOutput[1].BufferQueueLength, acc.Metrics[1].Fields["buffer_queue_length"])
-	assert.Equal(t, expectedOutput[1].BufferTotalQueuedSize, acc.Metrics[1].Fields["buffer_total_queued_size"])
+	assert.Equal(t, *expectedOutput[1].RetryCount, acc.Metrics[1].Fields["retry_count"])
+	assert.Equal(t, *expectedOutput[1].BufferQueueLength, acc.Metrics[1].Fields["buffer_queue_length"])
+	assert.Equal(t, *expectedOutput[1].BufferTotalQueuedSize, acc.Metrics[1].Fields["buffer_total_queued_size"])
 
 }

plugins/inputs/iptables/iptables.go

@@ -95,7 +95,7 @@ const measurement = "iptables"
 var errParse = errors.New("Cannot parse iptables list information")
 var chainNameRe = regexp.MustCompile(`^Chain\s+(\S+)`)
 var fieldsHeaderRe = regexp.MustCompile(`^\s*pkts\s+bytes\s+`)
-var commentRe = regexp.MustCompile(`\s*/\*\s*(.+?)\s*\*/\s*`)
+var valuesRe = regexp.MustCompile(`^\s*(\d+)\s+(\d+)\s+.*?/\*\s*(.+?)\s*\*/\s*`)
 
 func (ipt *Iptables) parseAndGather(data string, acc telegraf.Accumulator) error {
 	lines := strings.Split(data, "\n")
@@ -110,21 +110,14 @@ func (ipt *Iptables) parseAndGather(data string, acc telegraf.Accumulator) error
 		return errParse
 	}
 	for _, line := range lines[2:] {
-		tokens := strings.Fields(line)
-		if len(tokens) < 10 {
+		matches := valuesRe.FindStringSubmatch(line)
+		if len(matches) != 4 {
 			continue
 		}
 
-		pkts := tokens[0]
-		bytes := tokens[1]
-		end := strings.Join(tokens[9:], " ")
-
-		matches := commentRe.FindStringSubmatch(end)
-		if matches == nil {
-			continue
-		}
-
-		comment := matches[1]
+		pkts := matches[1]
+		bytes := matches[2]
+		comment := matches[3]
 
 		tags := map[string]string{"table": ipt.Table, "chain": mchain[1], "ruleid": comment}
 		fields := make(map[string]interface{})

plugins/inputs/iptables/iptables_test.go

@@ -154,68 +154,85 @@ func TestIptables_Gather(t *testing.T) {
 			tags:   []map[string]string{},
 			fields: [][]map[string]interface{}{},
 		},
+		{ // 11 - all target and ports
+			table:  "all_recv",
+			chains: []string{"accountfwd"},
+			values: []string{
+				`Chain accountfwd (1 references)
+						pkts bytes target prot opt in   out source    destination
+						 123   456        all  --  eth0 *   0.0.0.0/0 0.0.0.0/0   /* all_recv */
+		               `},
+			tags: []map[string]string{
+				map[string]string{"table": "all_recv", "chain": "accountfwd", "ruleid": "all_recv"},
+			},
+			fields: [][]map[string]interface{}{
+				{map[string]interface{}{"pkts": uint64(123), "bytes": uint64(456)}},
+			},
+		},
 	}
 
 	for i, tt := range tests {
-		i++
-		ipt := &Iptables{
-			Table:  tt.table,
-			Chains: tt.chains,
-			lister: func(table, chain string) (string, error) {
-				if len(tt.values) > 0 {
-					v := tt.values[0]
-					tt.values = tt.values[1:]
-					return v, nil
-				}
-				return "", nil
-			},
-		}
-		acc := new(testutil.Accumulator)
-		err := acc.GatherError(ipt.Gather)
-		if !reflect.DeepEqual(tt.err, err) {
-			t.Errorf("%d: expected error '%#v' got '%#v'", i, tt.err, err)
-		}
-		if tt.table == "" {
-			n := acc.NFields()
-			if n != 0 {
-				t.Errorf("%d: expected 0 fields if empty table got %d", i, n)
+		t.Run(tt.table, func(t *testing.T) {
+			i++
+			ipt := &Iptables{
+				Table:  tt.table,
+				Chains: tt.chains,
+				lister: func(table, chain string) (string, error) {
+					if len(tt.values) > 0 {
+						v := tt.values[0]
+						tt.values = tt.values[1:]
+						return v, nil
+					}
+					return "", nil
+				},
 			}
-			continue
-		}
-		if len(tt.chains) == 0 {
-			n := acc.NFields()
-			if n != 0 {
-				t.Errorf("%d: expected 0 fields if empty chains got %d", i, n)
+			acc := new(testutil.Accumulator)
+			err := acc.GatherError(ipt.Gather)
+			if !reflect.DeepEqual(tt.err, err) {
+				t.Errorf("%d: expected error '%#v' got '%#v'", i, tt.err, err)
 			}
-			continue
-		}
-		if len(tt.tags) == 0 {
-			n := acc.NFields()
-			if n != 0 {
-				t.Errorf("%d: expected 0 values got %d", i, n)
+			if tt.table == "" {
+				n := acc.NFields()
+				if n != 0 {
+					t.Errorf("%d: expected 0 fields if empty table got %d", i, n)
+				}
+				return
 			}
-			continue
-		}
-		n := 0
-		for j, tags := range tt.tags {
-			for k, fields := range tt.fields[j] {
-				if len(acc.Metrics) < n+1 {
-					t.Errorf("%d: expected at least %d values got %d", i, n+1, len(acc.Metrics))
-					break
+			if len(tt.chains) == 0 {
+				n := acc.NFields()
+				if n != 0 {
+					t.Errorf("%d: expected 0 fields if empty chains got %d", i, n)
 				}
-				m := acc.Metrics[n]
-				if !reflect.DeepEqual(m.Measurement, measurement) {
-					t.Errorf("%d %d %d: expected measurement '%#v' got '%#v'\n", i, j, k, measurement, m.Measurement)
-				}
-				if !reflect.DeepEqual(m.Tags, tags) {
-					t.Errorf("%d %d %d: expected tags\n%#v got\n%#v\n", i, j, k, tags, m.Tags)
-				}
-				if !reflect.DeepEqual(m.Fields, fields) {
-					t.Errorf("%d %d %d: expected fields\n%#v got\n%#v\n", i, j, k, fields, m.Fields)
-				}
-				n++
+				return
 			}
-		}
+			if len(tt.tags) == 0 {
+				n := acc.NFields()
+				if n != 0 {
+					t.Errorf("%d: expected 0 values got %d", i, n)
+				}
+				return
+			}
+			n := 0
+			for j, tags := range tt.tags {
+				for k, fields := range tt.fields[j] {
+					if len(acc.Metrics) < n+1 {
+						t.Errorf("%d: expected at least %d values got %d", i, n+1, len(acc.Metrics))
+						break
+					}
+					m := acc.Metrics[n]
+					if !reflect.DeepEqual(m.Measurement, measurement) {
+						t.Errorf("%d %d %d: expected measurement '%#v' got '%#v'\n", i, j, k, measurement, m.Measurement)
+					}
+					if !reflect.DeepEqual(m.Tags, tags) {
+						t.Errorf("%d %d %d: expected tags\n%#v got\n%#v\n", i, j, k, tags, m.Tags)
+					}
+					if !reflect.DeepEqual(m.Fields, fields) {
+						t.Errorf("%d %d %d: expected fields\n%#v got\n%#v\n", i, j, k, fields, m.Fields)
+					}
+					n++
+				}
+			}
+		})
 	}
 }
 

plugins/inputs/mqtt_consumer/README.md

@@ -13,6 +13,8 @@ The plugin expects messages in the
   servers = ["localhost:1883"]
   ## MQTT QoS, must be 0, 1, or 2
   qos = 0
+  ## Connection timeout for initial connection in seconds
+  connection_timeout = 30
 
   ## Topics to subscribe to
   topics = [

plugins/inputs/mqtt_consumer/mqtt_consumer.go

@@ -16,11 +16,12 @@ import (
 )
 
 type MQTTConsumer struct {
-	Servers  []string
-	Topics   []string
-	Username string
-	Password string
-	QoS      int `toml:"qos"`
+	Servers           []string
+	Topics            []string
+	Username          string
+	Password          string
+	QoS               int               `toml:"qos"`
+	ConnectionTimeout internal.Duration `toml:"connection_timeout"`
 
 	parser parsers.Parser
 
@@ -48,13 +49,15 @@ type MQTTConsumer struct {
 	// keep the accumulator internally:
 	acc telegraf.Accumulator
 
-	started bool
+	connected bool
 }
 
 var sampleConfig = `
   servers = ["localhost:1883"]
   ## MQTT QoS, must be 0, 1, or 2
   qos = 0
+  ## Connection timeout for initial connection in seconds
+  connection_timeout = 30
 
   ## Topics to subscribe to
   topics = [
@@ -103,7 +106,7 @@ func (m *MQTTConsumer) SetParser(parser parsers.Parser) {
 func (m *MQTTConsumer) Start(acc telegraf.Accumulator) error {
 	m.Lock()
 	defer m.Unlock()
-	m.started = false
+	m.connected = false
 
 	if m.PersistentSession && m.ClientID == "" {
 		return fmt.Errorf("ERROR MQTT Consumer: When using persistent_session" +
@@ -115,26 +118,40 @@ func (m *MQTTConsumer) Start(acc telegraf.Accumulator) error {
 		return fmt.Errorf("MQTT Consumer, invalid QoS value: %d", m.QoS)
 	}
 
+	if int(m.ConnectionTimeout.Duration) <= 0 {
+		return fmt.Errorf("MQTT Consumer, invalid connection_timeout value: %d", m.ConnectionTimeout)
+	}
+
 	opts, err := m.createOpts()
 	if err != nil {
 		return err
 	}
 
 	m.client = mqtt.NewClient(opts)
-	if token := m.client.Connect(); token.Wait() && token.Error() != nil {
-		return token.Error()
-	}
-
 	m.in = make(chan mqtt.Message, 1000)
 	m.done = make(chan struct{})
 
+	m.connect()
+
+	return nil
+}
+
+func (m *MQTTConsumer) connect() error {
+	if token := m.client.Connect(); token.Wait() && token.Error() != nil {
+		err := token.Error()
+		log.Printf("D! MQTT Consumer, connection error - %v", err)
+
+		return err
+	}
+
 	go m.receiver()
 
 	return nil
 }
+
 func (m *MQTTConsumer) onConnect(c mqtt.Client) {
 	log.Printf("I! MQTT Client Connected")
-	if !m.PersistentSession || !m.started {
+	if !m.PersistentSession || !m.connected {
 		topics := make(map[string]byte)
 		for _, topic := range m.Topics {
 			topics[topic] = byte(m.QoS)
@@ -145,7 +162,7 @@ func (m *MQTTConsumer) onConnect(c mqtt.Client) {
 			m.acc.AddError(fmt.Errorf("E! MQTT Subscribe Error\ntopics: %s\nerror: %s",
 				strings.Join(m.Topics[:], ","), subscribeToken.Error()))
 		}
-		m.started = true
+		m.connected = true
 	}
 	return
 }
@@ -186,18 +203,27 @@ func (m *MQTTConsumer) recvMessage(_ mqtt.Client, msg mqtt.Message) {
 func (m *MQTTConsumer) Stop() {
 	m.Lock()
 	defer m.Unlock()
-	close(m.done)
-	m.client.Disconnect(200)
-	m.started = false
+
+	if m.connected {
+		close(m.done)
+		m.client.Disconnect(200)
+		m.connected = false
+	}
 }
 
 func (m *MQTTConsumer) Gather(acc telegraf.Accumulator) error {
+	if !m.connected {
+		m.connect()
+	}
+
 	return nil
 }
 
 func (m *MQTTConsumer) createOpts() (*mqtt.ClientOptions, error) {
 	opts := mqtt.NewClientOptions()
 
+	opts.ConnectTimeout = m.ConnectionTimeout.Duration
+
 	if m.ClientID == "" {
 		opts.SetClientID("Telegraf-Consumer-" + internal.RandomString(5))
 	} else {
@@ -238,6 +264,7 @@ func (m *MQTTConsumer) createOpts() (*mqtt.ClientOptions, error) {
 	opts.SetCleanSession(!m.PersistentSession)
 	opts.SetOnConnectHandler(m.onConnect)
 	opts.SetConnectionLostHandler(m.onConnectionLost)
+
 	return opts, nil
 }
 

plugins/inputs/mqtt_consumer/mqtt_consumer_test.go

@@ -22,11 +22,13 @@ const (
 func newTestMQTTConsumer() (*MQTTConsumer, chan mqtt.Message) {
 	in := make(chan mqtt.Message, 100)
 	n := &MQTTConsumer{
-		Topics:  []string{"telegraf"},
-		Servers: []string{"localhost:1883"},
-		in:      in,
-		done:    make(chan struct{}),
+		Topics:    []string{"telegraf"},
+		Servers:   []string{"localhost:1883"},
+		in:        in,
+		done:      make(chan struct{}),
+		connected: true,
 	}
+
 	return n, in
 }
 
@@ -131,6 +133,7 @@ func TestRunParserAndGather(t *testing.T) {
 	n, in := newTestMQTTConsumer()
 	acc := testutil.Accumulator{}
 	n.acc = &acc
+
 	defer close(n.done)
 
 	n.parser, _ = parsers.NewInfluxParser()

plugins/inputs/sqlserver/sqlserver.go

@@ -1022,7 +1022,7 @@ CREATE TABLE #PCounters
 	Primary Key(object_name, counter_name, instance_name)
 );
 INSERT #PCounters
-SELECT RTrim(spi.object_name) object_name
+SELECT DISTINCT RTrim(spi.object_name) object_name
 , RTrim(spi.counter_name) counter_name
 , RTrim(spi.instance_name) instance_name
 , spi.cntr_value
@@ -1044,7 +1044,7 @@ CREATE TABLE #CCounters
 	Primary Key(object_name, counter_name, instance_name)
 );
 INSERT #CCounters
-SELECT RTrim(spi.object_name) object_name
+SELECT DISTINCT RTrim(spi.object_name) object_name
 , RTrim(spi.counter_name) counter_name
 , RTrim(spi.instance_name) instance_name
 , spi.cntr_value

plugins/inputs/statsd/running_stats.go

@@ -101,8 +101,15 @@ func (rs *RunningStats) Percentile(n int) float64 {
 	}
 
 	i := int(float64(len(rs.perc)) * float64(n) / float64(100))
-	if i < 0 {
-		i = 0
-	}
-	return rs.perc[i]
+	return rs.perc[clamp(i, 0, len(rs.perc)-1)]
+}
+
+func clamp(i int, min int, max int) int {
+	if i < min {
+		return min
+	}
+	if i > max {
+		return max
+	}
+	return i
 }

plugins/inputs/statsd/running_stats_test.go

@@ -23,12 +23,18 @@ func TestRunningStats_Single(t *testing.T) {
 	if rs.Lower() != 10.1 {
 		t.Errorf("Expected %v, got %v", 10.1, rs.Lower())
 	}
+	if rs.Percentile(100) != 10.1 {
+		t.Errorf("Expected %v, got %v", 10.1, rs.Percentile(100))
+	}
 	if rs.Percentile(90) != 10.1 {
 		t.Errorf("Expected %v, got %v", 10.1, rs.Percentile(90))
 	}
 	if rs.Percentile(50) != 10.1 {
 		t.Errorf("Expected %v, got %v", 10.1, rs.Percentile(50))
 	}
+	if rs.Percentile(0) != 10.1 {
+		t.Errorf("Expected %v, got %v", 10.1, rs.Percentile(0))
+	}
 	if rs.Count() != 1 {
 		t.Errorf("Expected %v, got %v", 1, rs.Count())
 	}
@@ -58,12 +64,18 @@ func TestRunningStats_Duplicate(t *testing.T) {
 	if rs.Lower() != 10.1 {
 		t.Errorf("Expected %v, got %v", 10.1, rs.Lower())
 	}
+	if rs.Percentile(100) != 10.1 {
+		t.Errorf("Expected %v, got %v", 10.1, rs.Percentile(100))
+	}
 	if rs.Percentile(90) != 10.1 {
 		t.Errorf("Expected %v, got %v", 10.1, rs.Percentile(90))
 	}
 	if rs.Percentile(50) != 10.1 {
 		t.Errorf("Expected %v, got %v", 10.1, rs.Percentile(50))
 	}
+	if rs.Percentile(0) != 10.1 {
+		t.Errorf("Expected %v, got %v", 10.1, rs.Percentile(0))
+	}
 	if rs.Count() != 4 {
 		t.Errorf("Expected %v, got %v", 4, rs.Count())
 	}
@@ -93,12 +105,18 @@ func TestRunningStats(t *testing.T) {
 	if rs.Lower() != 5 {
 		t.Errorf("Expected %v, got %v", 5, rs.Lower())
 	}
+	if rs.Percentile(100) != 45 {
+		t.Errorf("Expected %v, got %v", 45, rs.Percentile(100))
+	}
 	if rs.Percentile(90) != 32 {
 		t.Errorf("Expected %v, got %v", 32, rs.Percentile(90))
 	}
 	if rs.Percentile(50) != 11 {
 		t.Errorf("Expected %v, got %v", 11, rs.Percentile(50))
 	}
+	if rs.Percentile(0) != 5 {
+		t.Errorf("Expected %v, got %v", 5, rs.Percentile(0))
+	}
 	if rs.Count() != 16 {
 		t.Errorf("Expected %v, got %v", 4, rs.Count())
 	}

plugins/inputs/statsd/statsd.go

@@ -251,14 +251,14 @@ func (s *Statsd) Gather(acc telegraf.Accumulator) error {
 	}
 
 	for _, metric := range s.gauges {
-		acc.AddFields(metric.name, metric.fields, metric.tags, now)
+		acc.AddGauge(metric.name, metric.fields, metric.tags, now)
 	}
 	if s.DeleteGauges {
 		s.gauges = make(map[string]cachedgauge)
 	}
 
 	for _, metric := range s.counters {
-		acc.AddFields(metric.name, metric.fields, metric.tags, now)
+		acc.AddCounter(metric.name, metric.fields, metric.tags, now)
 	}
 	if s.DeleteCounters {
 		s.counters = make(map[string]cachedcounter)

plugins/outputs/opentsdb/opentsdb.go

@@ -5,6 +5,7 @@ import (
 	"log"
 	"net"
 	"net/url"
+	"regexp"
 	"sort"
 	"strconv"
 	"strings"
@@ -13,6 +14,16 @@ import (
 	"github.com/influxdata/telegraf/plugins/outputs"
 )
 
+var (
+	allowedChars = regexp.MustCompile(`[^a-zA-Z0-9-_./\p{L}]`)
+	hypenChars   = strings.NewReplacer(
+		"@", "-",
+		"*", "-",
+		`%`, "-",
+		"#", "-",
+		"$", "-")
+)
+
 type OpenTSDB struct {
 	Prefix string
 
@@ -24,9 +35,6 @@ type OpenTSDB struct {
 	Debug bool
 }
 
-var sanitizedChars = strings.NewReplacer("@", "-", "*", "-", " ", "_",
-	`%`, "-", "#", "-", "$", "-", ":", "_")
-
 var sampleConfig = `
   ## prefix for metrics keys
   prefix = "my.specific.prefix."
@@ -125,8 +133,7 @@ func (o *OpenTSDB) WriteHttp(metrics []telegraf.Metric, u *url.URL) error {
 			}
 
 			metric := &HttpMetric{
-				Metric: sanitizedChars.Replace(fmt.Sprintf("%s%s_%s",
-					o.Prefix, m.Name(), fieldName)),
+				Metric:    sanitize(fmt.Sprintf("%s%s_%s", o.Prefix, m.Name(), fieldName)),
 				Tags:      tags,
 				Timestamp: now,
 				Value:     value,
@@ -176,7 +183,7 @@ func (o *OpenTSDB) WriteTelnet(metrics []telegraf.Metric, u *url.URL) error {
 			}
 
 			messageLine := fmt.Sprintf("put %s %v %s %s\n",
-				sanitizedChars.Replace(fmt.Sprintf("%s%s_%s", o.Prefix, m.Name(), fieldName)),
+				sanitize(fmt.Sprintf("%s%s_%s", o.Prefix, m.Name(), fieldName)),
 				now, metricValue, tags)
 
 			_, err := connection.Write([]byte(messageLine))
@@ -192,7 +199,7 @@ func (o *OpenTSDB) WriteTelnet(metrics []telegraf.Metric, u *url.URL) error {
 func cleanTags(tags map[string]string) map[string]string {
 	tagSet := make(map[string]string, len(tags))
 	for k, v := range tags {
-		tagSet[sanitizedChars.Replace(k)] = sanitizedChars.Replace(v)
+		tagSet[sanitize(k)] = sanitize(v)
 	}
 	return tagSet
 }
@@ -236,6 +243,13 @@ func (o *OpenTSDB) Close() error {
 	return nil
 }
 
+func sanitize(value string) string {
+	// Apply special hypenation rules to preserve backwards compatibility
+	value = hypenChars.Replace(value)
+	// Replace any remaining illegal chars
+	return allowedChars.ReplaceAllLiteralString(value, "_")
+}
+
 func init() {
 	outputs.Add("opentsdb", func() telegraf.Output {
 		return &OpenTSDB{}

plugins/outputs/opentsdb/opentsdb_test.go

@@ -10,9 +10,10 @@ import (
 	"strconv"
 	"testing"
 
+	"github.com/stretchr/testify/require"
+
 	"github.com/influxdata/telegraf"
 	"github.com/influxdata/telegraf/testutil"
-	//"github.com/stretchr/testify/require"
 )
 
 func TestCleanTags(t *testing.T) {
@@ -29,8 +30,16 @@ func TestCleanTags(t *testing.T) {
 			map[string]string{"aaa": "bbb"},
 		},
 		{
-			map[string]string{"Sp%ci@l Chars": "g$t repl#ced"},
-			map[string]string{"Sp-ci-l_Chars": "g-t_repl-ced"},
+			map[string]string{"Sp%ci@l Chars[": "g$t repl#ce)d"},
+			map[string]string{"Sp-ci-l_Chars_": "g-t_repl-ce_d"},
+		},
+		{
+			map[string]string{"μnicodε_letters": "okαy"},
+			map[string]string{"μnicodε_letters": "okαy"},
+		},
+		{
+			map[string]string{"n☺": "emojies☠"},
+			map[string]string{"n_": "emojies_"},
 		},
 		{
 			map[string]string{},
@@ -75,6 +84,47 @@ func TestBuildTagsTelnet(t *testing.T) {
 	}
 }
 
+func TestSanitize(t *testing.T) {
+	tests := []struct {
+		name     string
+		value    string
+		expected string
+	}{
+		{
+			name:     "Ascii letters and numbers allowed",
+			value:    "ascii 123",
+			expected: "ascii_123",
+		},
+		{
+			name:     "Allowed punct",
+			value:    "-_./",
+			expected: "-_./",
+		},
+		{
+			name:     "Special conversions to hyphen",
+			value:    "@*%#$!",
+			expected: "-----_",
+		},
+		{
+			name:     "Unicode Letters allowed",
+			value:    "μnicodε_letters",
+			expected: "μnicodε_letters",
+		},
+		{
+			name:     "Other Unicode not allowed",
+			value:    "“☢”",
+			expected: "___",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			actual := sanitize(tt.value)
+			require.Equal(t, tt.expected, actual)
+		})
+	}
+}
+
 func BenchmarkHttpSend(b *testing.B) {
 	const BatchSize = 50
 	const MetricsCount = 4 * BatchSize

plugins/serializers/graphite/graphite_test.go

@@ -212,6 +212,8 @@ func TestSerializeValueBoolean(t *testing.T) {
 		fmt.Sprintf("localhost.enabled.cpu0.us-west-2.cpu 1 %d", now.Unix()),
 		fmt.Sprintf("localhost.disabled.cpu0.us-west-2.cpu 0 %d", now.Unix()),
 	}
+	sort.Strings(mS)
+	sort.Strings(expS)
 	assert.Equal(t, expS, mS)
 }
 

scripts/build.py

@@ -274,6 +274,8 @@ def get_system_arch():
         arch = "amd64"
     elif arch == "386":
         arch = "i386"
+    elif "arm64" in arch:
+        arch = "arm64"
     elif 'arm' in arch:
         # Prevent uname from reporting full ARM arch (eg 'armv7l')
         arch = "arm"
@@ -446,6 +448,8 @@ def build(version=None,
         # Handle variations in architecture output
         if arch == "i386" or arch == "i686":
             arch = "386"
+        elif "arm64" in arch:
+            arch = "arm64"
         elif "arm" in arch:
             arch = "arm"
         build_command += "GOOS={} GOARCH={} ".format(platform, arch)