Standard deviation (jitter) for Input plugin Ping (#2078)
This commit is contained in:
parent
cf7ea36541
commit
d27c78a979
|
@ -84,7 +84,7 @@ func (p *Ping) Gather(acc telegraf.Accumulator) error {
|
||||||
strings.TrimSpace(out) + ", " + err.Error())
|
strings.TrimSpace(out) + ", " + err.Error())
|
||||||
}
|
}
|
||||||
tags := map[string]string{"url": u}
|
tags := map[string]string{"url": u}
|
||||||
trans, rec, avg, err := processPingOutput(out)
|
trans, rec, avg, stddev, err := processPingOutput(out)
|
||||||
if err != nil {
|
if err != nil {
|
||||||
// fatal error
|
// fatal error
|
||||||
errorChannel <- err
|
errorChannel <- err
|
||||||
|
@ -100,6 +100,9 @@ func (p *Ping) Gather(acc telegraf.Accumulator) error {
|
||||||
if avg > 0 {
|
if avg > 0 {
|
||||||
fields["average_response_ms"] = avg
|
fields["average_response_ms"] = avg
|
||||||
}
|
}
|
||||||
|
if stddev > 0 {
|
||||||
|
fields["standard_deviation_ms"] = stddev
|
||||||
|
}
|
||||||
acc.AddFields("ping", fields, tags)
|
acc.AddFields("ping", fields, tags)
|
||||||
}(url)
|
}(url)
|
||||||
}
|
}
|
||||||
|
@ -166,9 +169,9 @@ func (p *Ping) args(url string) []string {
|
||||||
// round-trip min/avg/max/stddev = 34.843/43.508/52.172/8.664 ms
|
// round-trip min/avg/max/stddev = 34.843/43.508/52.172/8.664 ms
|
||||||
//
|
//
|
||||||
// It returns (<transmitted packets>, <received packets>, <average response>)
|
// It returns (<transmitted packets>, <received packets>, <average response>)
|
||||||
func processPingOutput(out string) (int, int, float64, error) {
|
func processPingOutput(out string) (int, int, float64, float64, error) {
|
||||||
var trans, recv int
|
var trans, recv int
|
||||||
var avg float64
|
var avg, stddev float64
|
||||||
// Set this error to nil if we find a 'transmitted' line
|
// Set this error to nil if we find a 'transmitted' line
|
||||||
err := errors.New("Fatal error processing ping output")
|
err := errors.New("Fatal error processing ping output")
|
||||||
lines := strings.Split(out, "\n")
|
lines := strings.Split(out, "\n")
|
||||||
|
@ -180,22 +183,23 @@ func processPingOutput(out string) (int, int, float64, error) {
|
||||||
// Transmitted packets
|
// Transmitted packets
|
||||||
trans, err = strconv.Atoi(strings.Split(stats[0], " ")[0])
|
trans, err = strconv.Atoi(strings.Split(stats[0], " ")[0])
|
||||||
if err != nil {
|
if err != nil {
|
||||||
return trans, recv, avg, err
|
return trans, recv, avg, stddev, err
|
||||||
}
|
}
|
||||||
// Received packets
|
// Received packets
|
||||||
recv, err = strconv.Atoi(strings.Split(stats[1], " ")[0])
|
recv, err = strconv.Atoi(strings.Split(stats[1], " ")[0])
|
||||||
if err != nil {
|
if err != nil {
|
||||||
return trans, recv, avg, err
|
return trans, recv, avg, stddev, err
|
||||||
}
|
}
|
||||||
} else if strings.Contains(line, "min/avg/max") {
|
} else if strings.Contains(line, "min/avg/max") {
|
||||||
stats := strings.Split(line, " = ")[1]
|
stats := strings.Split(line, " ")[3]
|
||||||
avg, err = strconv.ParseFloat(strings.Split(stats, "/")[1], 64)
|
avg, err = strconv.ParseFloat(strings.Split(stats, "/")[1], 64)
|
||||||
|
stddev, err = strconv.ParseFloat(strings.Split(stats, "/")[3], 64)
|
||||||
if err != nil {
|
if err != nil {
|
||||||
return trans, recv, avg, err
|
return trans, recv, avg, stddev, err
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
return trans, recv, avg, err
|
return trans, recv, avg, stddev, err
|
||||||
}
|
}
|
||||||
|
|
||||||
func init() {
|
func init() {
|
||||||
|
|
|
@ -48,23 +48,25 @@ ping: -i interval too short: Operation not permitted
|
||||||
|
|
||||||
// Test that ping command output is processed properly
|
// Test that ping command output is processed properly
|
||||||
func TestProcessPingOutput(t *testing.T) {
|
func TestProcessPingOutput(t *testing.T) {
|
||||||
trans, rec, avg, err := processPingOutput(bsdPingOutput)
|
trans, rec, avg, stddev, err := processPingOutput(bsdPingOutput)
|
||||||
assert.NoError(t, err)
|
assert.NoError(t, err)
|
||||||
assert.Equal(t, 5, trans, "5 packets were transmitted")
|
assert.Equal(t, 5, trans, "5 packets were transmitted")
|
||||||
assert.Equal(t, 5, rec, "5 packets were transmitted")
|
assert.Equal(t, 5, rec, "5 packets were transmitted")
|
||||||
assert.InDelta(t, 20.224, avg, 0.001)
|
assert.InDelta(t, 20.224, avg, 0.001)
|
||||||
|
assert.InDelta(t, 4.076, stddev, 0.001)
|
||||||
|
|
||||||
trans, rec, avg, err = processPingOutput(linuxPingOutput)
|
trans, rec, avg, stddev, err = processPingOutput(linuxPingOutput)
|
||||||
assert.NoError(t, err)
|
assert.NoError(t, err)
|
||||||
assert.Equal(t, 5, trans, "5 packets were transmitted")
|
assert.Equal(t, 5, trans, "5 packets were transmitted")
|
||||||
assert.Equal(t, 5, rec, "5 packets were transmitted")
|
assert.Equal(t, 5, rec, "5 packets were transmitted")
|
||||||
assert.InDelta(t, 43.628, avg, 0.001)
|
assert.InDelta(t, 43.628, avg, 0.001)
|
||||||
|
assert.InDelta(t, 5.325, stddev, 0.001)
|
||||||
}
|
}
|
||||||
|
|
||||||
// Test that processPingOutput returns an error when 'ping' fails to run, such
|
// Test that processPingOutput returns an error when 'ping' fails to run, such
|
||||||
// as when an invalid argument is provided
|
// as when an invalid argument is provided
|
||||||
func TestErrorProcessPingOutput(t *testing.T) {
|
func TestErrorProcessPingOutput(t *testing.T) {
|
||||||
_, _, _, err := processPingOutput(fatalPingOutput)
|
_, _, _, _, err := processPingOutput(fatalPingOutput)
|
||||||
assert.Error(t, err, "Error was expected from processPingOutput")
|
assert.Error(t, err, "Error was expected from processPingOutput")
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -149,6 +151,7 @@ func TestPingGather(t *testing.T) {
|
||||||
"packets_received": 5,
|
"packets_received": 5,
|
||||||
"percent_packet_loss": 0.0,
|
"percent_packet_loss": 0.0,
|
||||||
"average_response_ms": 43.628,
|
"average_response_ms": 43.628,
|
||||||
|
"standard_deviation_ms": 5.325,
|
||||||
}
|
}
|
||||||
acc.AssertContainsTaggedFields(t, "ping", fields, tags)
|
acc.AssertContainsTaggedFields(t, "ping", fields, tags)
|
||||||
|
|
||||||
|
@ -186,6 +189,7 @@ func TestLossyPingGather(t *testing.T) {
|
||||||
"packets_received": 3,
|
"packets_received": 3,
|
||||||
"percent_packet_loss": 40.0,
|
"percent_packet_loss": 40.0,
|
||||||
"average_response_ms": 44.033,
|
"average_response_ms": 44.033,
|
||||||
|
"standard_deviation_ms": 5.325,
|
||||||
}
|
}
|
||||||
acc.AssertContainsTaggedFields(t, "ping", fields, tags)
|
acc.AssertContainsTaggedFields(t, "ping", fields, tags)
|
||||||
}
|
}
|
||||||
|
|
Loading…
Reference in New Issue