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app/vmselect/graphite: remove duplicate name tag from /tags/autoComplete/tags handler

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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/942
This commit is contained in:
Aliaksandr Valialkin 2020-12-07 01:07:03 +02:00
parent 9d79d11a6c
commit 9660774fd1
2 changed files with 20 additions and 2 deletions
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20
app/vmselect/netstorage/netstorage.go
View File

@ -586,11 +586,18 @@ func GetGraphiteTags(at *auth.Token, denyPartialResponse bool, filter string, li
}
// Substitute "__name__" with "name" for Graphite compatibility
for i := range labels {
if labels[i] == "__name__" {
if labels[i] != "__name__" {
continue
}
// Prevent from duplicate `name` tag.
// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/942
if hasString(labels, "name") {
labels = append(labels[:i], labels[i+1:]...)
} else {
labels[i] = "name"
sort.Strings(labels)
break
}
break
}
if len(filter) > 0 {
labels, err = applyGraphiteRegexpFilter(filter, labels)
@ -604,6 +611,15 @@ func GetGraphiteTags(at *auth.Token, denyPartialResponse bool, filter string, li
return labels, isPartial, nil
}
func hasString(a []string, s string) bool {
for _, x := range a {
if x == s {
return true
}
}
return false
}
// GetLabels returns labels until the given deadline.
func GetLabels(at *auth.Token, denyPartialResponse bool, deadline searchutils.Deadline) ([]string, bool, error) {
if deadline.Exceeded() {

2
docs/CHANGELOG.md
View File

@ -6,6 +6,8 @@
Though [InfluxDB line protocol](https://docs.influxdata.com/influxdb/v1.8/write_protocols/line_protocol_tutorial/) denies multiple whitespace chars between these entities,
some apps improperly put multiple whitespace chars. This workaround allows accepting data from such apps.
* BUGFIX: prevent from duplicate `name` tag returned from `/tags/autoComplete/tags` handler. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/942
# [v1.49.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.49.0)