diff options
Diffstat (limited to 'plugin/metrics/metrics.go')
| -rw-r--r-- | plugin/metrics/metrics.go | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/plugin/metrics/metrics.go b/plugin/metrics/metrics.go index 8efeff1e7..6b496cccc 100644 --- a/plugin/metrics/metrics.go +++ b/plugin/metrics/metrics.go @@ -57,7 +57,15 @@ func New(addr string) *Metrics { } // MustRegister wraps m.Reg.MustRegister. -func (m *Metrics) MustRegister(c prometheus.Collector) { m.Reg.MustRegister(c) } +func (m *Metrics) MustRegister(c prometheus.Collector) { + err := m.Reg.Register(c) + if err != nil { + // ignore any duplicate error, but fatal on any other kind of error + if _, ok := err.(prometheus.AlreadyRegisteredError); !ok { + log.Fatalf("Cannot register metrics collector: %s", err) + } + } +} // AddZone adds zone z to m. func (m *Metrics) AddZone(z string) { |