Reset BlockbookAppInfo metrics to avoid duplicate values

blockbook.go

@@ -358,8 +358,9 @@ func blockbookAppInfoMetric(db *db.RocksDB, chain bchain.BlockChain, txCache *db
 	if err != nil {
 		return err
 	}
+	metrics.BlockbookAppInfo.Reset()
 	metrics.BlockbookAppInfo.With(common.Labels{
-		"blockbook_version":        si.Blockbook.Version,
+		"blockbook_version":        si.Blockbook.Version + time.Now().String(),
 		"blockbook_commit":         si.Blockbook.GitCommit,
 		"backend_version":          si.Backend.Version,
 		"backend_subversion":       si.Backend.Subversion,

db/sync.go

@@ -67,6 +67,7 @@ func (w *SyncWorker) ResyncIndex(onNewBlock bchain.OnNewBlockFunc) error {
 	case errSynced:
 		// this is not actually error but flag that resync wasn't necessary
 		w.is.FinishedSyncNoChange()
+		w.metrics.IndexDBSize.Set(float64(w.db.DatabaseSizeOnDisk()))
 		return nil
 	}