Skip to content

[prometheusremotewrite] fix: counter name check #2613

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
bogdandrutu merged 3 commits into from
Mar 8, 2021
Merged

[prometheusremotewrite] fix: counter name check #2613

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
8bffb8e
[prometheusremotewrite] fix: counter name check
Mar 6, 2021
a52e16e
use strings.HasSuffix()
Mar 6, 2021
3bd2bd7
add already suffixed counter test
Mar 8, 2021
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
36 changes: 18 additions & 18 deletions exporter/prometheusremotewriteexporter/helper.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -31,16 +31,16 @@ import (
)

const (
nameStr = "__name__"
sumStr = "_sum"
countStr = "_count"
bucketStr = "_bucket"
leStr = "le"
quantileStr = "quantile"
pInfStr = "+Inf"
totalStr = "total"
delimeter = "_"
keyStr = "key"
nameStr = "__name__"
sumStr = "_sum"
countStr = "_count"
bucketStr = "_bucket"
leStr = "le"
quantileStr = "quantile"
pInfStr = "+Inf"
counterSuffix = "_total"
delimiter = "_"
keyStr = "key"
)

// ByLabelName enables the usage of sort.Sort() with a slice of labels
Expand Down Expand Up @@ -188,14 +188,11 @@ func getPromMetricName(metric *otlp.Metric, ns string) string {
b.WriteString(ns)

if b.Len() > 0 {
b.WriteString(delimeter)
b.WriteString(delimiter)
}
name := metric.GetName()
b.WriteString(name)

// do not add the total suffix if the metric name already ends in "total"
isCounter = isCounter && name[len(name)-len(totalStr):] != totalStr

// Including units makes two metrics with the same name and label set belong to two different TimeSeries if the
// units are different.
/*
Expand All @@ -205,9 +202,12 @@ func getPromMetricName(metric *otlp.Metric, ns string) string {
}
*/

if b.Len() > 0 && isCounter {
b.WriteString(delimeter)
b.WriteString(totalStr)
counterSuffixLength := len(counterSuffix)
nameLength := len(name)
hasCounterSuffix := nameLength > counterSuffixLength && name[nameLength-counterSuffixLength:] == counterSuffix

if b.Len() > 0 && isCounter && !hasCounterSuffix {
b.WriteString(counterSuffix)
}
return sanitize(b.String())
}
Expand Down Expand Up @@ -262,7 +262,7 @@ func sanitize(s string) string {
// See https://github.com/orijtech/prometheus-go-metrics-exporter/issues/4.
s = strings.Map(sanitizeRune, s)
if unicode.IsDigit(rune(s[0])) {
s = keyStr + delimeter + s
s = keyStr + delimiter + s
}
if s[0] == '_' {
s = keyStr + s
Expand Down
2 changes: 1 addition & 1 deletion exporter/prometheusremotewriteexporter/helper_test.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -287,7 +287,7 @@ func Test_getPromMetricName(t *testing.T) {
"total_suffix",
validMetrics1[validIntSum],
ns1,
"test_ns_" + validIntSum + delimeter + totalStr,
"test_ns_" + validIntSum + counterSuffix,
},
{
"dirty_string",
Expand Down