Traces: Create span when a new session is opened (#61115)

pkg/services/sqlstore/transactions.go

@@ -34,7 +34,7 @@ func (ss *SQLStore) inTransactionWithRetry(ctx context.Context, fn func(ctx cont
 }
 
 func (ss *SQLStore) inTransactionWithRetryCtx(ctx context.Context, engine *xorm.Engine, bus bus.Bus, callback DBTransactionFunc, retry int) error {
-	sess, isNew, err := startSessionOrUseExisting(ctx, engine, true)
+	sess, isNew, span, err := startSessionOrUseExisting(ctx, engine, true, ss.tracer)
 	if err != nil {
 		return err
 	}
@@ -45,7 +45,12 @@ func (ss *SQLStore) inTransactionWithRetryCtx(ctx context.Context, engine *xorm.
 	}
 
 	if isNew { // if this call initiated the session, it should be responsible for closing it.
-		defer sess.Close()
+		defer func() {
+			if span != nil {
+				span.End()
+			}
+			sess.Close()
+		}()
 	}
 
 	err = callback(sess)