Fix crash caused by not handling ErrNotFound on uninitialized database.

Author: LINCKODE

go.sum

@@ -10,8 +10,6 @@ github.com/bsm/gomega v1.27.10 h1:yeMWxP2pV2fG3FgAODIY8EiRE3dy0aeFYt4l7wh6yKA=
 github.com/bsm/gomega v1.27.10/go.mod h1:JyEr/xRbxbtgWNi8tIEVPUYZ5Dzef52k01W3YH0H+O0=
 github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/cloudflare/circl v1.5.0 h1:hxIWksrX6XN5a1L2TI/h53AGPhNHoUBo+TD1ms9+pys=
-github.com/cloudflare/circl v1.5.0/go.mod h1:uddAzsPgqdMAYatqJ0lsjX1oECcQLIlRpzZh3pJrofs=
 github.com/cloudflare/circl v1.6.1 h1:zqIqSPIndyBh1bjLVVDHMPpVKqp8Su/V+6MeDzzQBQ0=
 github.com/cloudflare/circl v1.6.1/go.mod h1:uddAzsPgqdMAYatqJ0lsjX1oECcQLIlRpzZh3pJrofs=
 github.com/cloudflare/fourq v0.0.0-20240920015215-a8ef7b780d07 h1:A0Btoh92RfhQC5qh15d/gSsPSXoWxax82iwMjc8k+ko=
@@ -97,8 +95,6 @@ github.com/rogpeppe/go-internal v1.14.1/go.mod h1:MaRKkUm5W0goXpeCfT7UZI6fk/L7L7
 github.com/silenceper/pool v1.0.0 h1:JTCaA+U6hJAA0P8nCx+JfsRCHMwLTfatsm5QXelffmU=
 github.com/silenceper/pool v1.0.0/go.mod h1:3DN13bqAbq86Lmzf6iUXWEPIWFPOSYVfaoceFvilKKI=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
-github.com/sirupsen/logrus v1.9.0 h1:trlNQbNUG3OdDrDil03MCb1H2o9nJ1x4/5LYw7byDE0=
-github.com/sirupsen/logrus v1.9.0/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
 github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
 github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=

metrics/service.go

@@ -11,6 +11,7 @@ import (
 	"github.com/prometheus/client_golang/prometheus/promauto"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	eventspb "github.com/qubic/go-events/proto"
+	"github.com/qubic/go-events/store"
 )
 
 const lptCacheKey = "LPT"
@@ -86,7 +87,12 @@ func (s *Service) metricsEndpointHandler() http.Handler {
 	if !s.cache.Has(lptCacheKey) || !s.cache.Has(epochCacheKey) {
 		err := s.refreshCache()
 		if err != nil {
-			log.Printf("Failed to refresh metrics cache: %s\n", err)
+			if !errors.Is(err, store.ErrNotFound) {
+				log.Printf("Failed to refresh metrics cache: %s\n", err)
+				panic(err)
+			}
+			s.cache.Set(lptCacheKey, 0, ttlcache.DefaultTTL)
+			s.cache.Set(epochCacheKey, 0, ttlcache.DefaultTTL)
 		}
 	}