From 12ca0efc19fddbc5445c83332c2aa249baca09cd Mon Sep 17 00:00:00 2001
From: Aliaksandr Valialkin <valyala@gmail.com>
Date: Mon, 22 Mar 2021 23:02:37 +0200
Subject: [PATCH] lib/storage: respect the deadline passed to
 Storage.SearchMetricNames

---
 lib/storage/storage.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/storage/storage.go b/lib/storage/storage.go
index ffa096e66..5b6e478a5 100644
--- a/lib/storage/storage.go
+++ b/lib/storage/storage.go
@@ -938,6 +938,11 @@ func (s *Storage) SearchMetricNames(tfss []*TagFilters, tr TimeRange, maxMetrics
 	mns := make([]MetricName, 0, len(tsids))
 	var metricName []byte
 	for i := range tsids {
+		if i&paceLimiterSlowIterationsMask == 0 {
+			if err := checkSearchDeadlineAndPace(deadline); err != nil {
+				return nil, err
+			}
+		}
 		metricID := tsids[i].MetricID
 		var err error
 		metricName, err = idb.searchMetricNameWithCache(metricName[:0], metricID, accountID, projectID)