diff options
Diffstat (limited to 'plugin/metrics/metrics.go')
| -rw-r--r-- | plugin/metrics/metrics.go | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/plugin/metrics/metrics.go b/plugin/metrics/metrics.go index 0c24ffd15..a49984b3d 100644 --- a/plugin/metrics/metrics.go +++ b/plugin/metrics/metrics.go @@ -104,7 +104,14 @@ func (m *Metrics) OnStartup() error { } // OnShutdown tears down the metrics listener on shutdown and restart. -func (m *Metrics) OnShutdown() error { return m.ln.Close() } +func (m *Metrics) OnShutdown() error { + // We allow prometheus statements in multiple Server Blocks, but only the first + // will open the listener, for the rest they are all nil; guard against that. + if m.ln != nil { + return m.ln.Close() + } + return nil +} func keys(m map[string]bool) []string { sx := []string{} |