diff options
Diffstat (limited to 'vendor/github.com/prometheus/common/expfmt/text_parse.go')
| -rw-r--r-- | vendor/github.com/prometheus/common/expfmt/text_parse.go | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/vendor/github.com/prometheus/common/expfmt/text_parse.go b/vendor/github.com/prometheus/common/expfmt/text_parse.go index 342e5940d0..b6079b31ee 100644 --- a/vendor/github.com/prometheus/common/expfmt/text_parse.go +++ b/vendor/github.com/prometheus/common/expfmt/text_parse.go @@ -299,6 +299,17 @@ func (p *TextParser) startLabelName() stateFn { p.parseError(fmt.Sprintf("expected '=' after label name, found %q", p.currentByte)) return nil } + // Check for duplicate label names. + labels := make(map[string]struct{}) + for _, l := range p.currentMetric.Label { + lName := l.GetName() + if _, exists := labels[lName]; !exists { + labels[lName] = struct{}{} + } else { + p.parseError(fmt.Sprintf("duplicate label names for metric %q", p.currentMF.GetName())) + return nil + } + } return p.startLabelValue } |