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collectors: tolerate DeadlineExceeded in PeerCollector #126

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Merged
Roasbeef merged 1 commit into from
Feb 20, 2026
+11 −2
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collectors: tolerate DeadlineExceeded in PeerCollector #126

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13 changes: 11 additions & 2 deletions collectors/peer_collector.go
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Original file line number Diff line number Diff line change
Expand Up @@ -89,8 +89,17 @@ func (p *PeerCollector) Describe(ch chan<- *prometheus.Desc) {
func (p *PeerCollector) Collect(ch chan<- prometheus.Metric) {
listPeersResp, err := p.lnd.ListPeers(context.Background())
if err != nil {
p.errChan <- fmt.Errorf("PeerCollector ListPeers failed with: "+
"%v", err)
errWithContext := fmt.Errorf("PeerCollector ListPeers failed with: "+
"%w", err)
Logger.Error(errWithContext)

// A deadline exceeded is expected if lnd is temporarily slow
// to respond (e.g. due to database load). We just skip this
// scrape cycle and let Prometheus retry on the next interval.
if !IsDeadlineExceeded(err) {
p.errChan <- errWithContext
}

return
}

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