Ingester: rebuild labels symbol-table on each compaction

grafana · Apr 8, 2024 · f234c67 · f234c67
1 parent f1cc93e
commit f234c67
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/pkg/ingester/user_tsdb.go b/pkg/ingester/user_tsdb.go
@@ -630,5 +630,13 @@ func (u *userTSDB) computeOwnedSeries() int {
 }
 
 func (u *userTSDB) resetSymbolTable() {
-	u.symbolTable.Store(labels.NewSymbolTable())
+	var st *labels.SymbolTable
+	if u.db != nil && u.db.Head() != nil {
+		// Compact all labels in head into one SymbolTable.
+		st = u.Head().RebuildSymbolTable()
+	} else {
+		st = labels.NewSymbolTable()
+	}
+	// Then use that for new series going forward.
+	u.symbolTable.Store(st)
 }