From 3c5b2bea94c5a764f9b7676f26ba40d5b71e2d34 Mon Sep 17 00:00:00 2001
From: Alex Sharov <AskAlexSharov@gmail.com>
Date: Sun, 11 Oct 2020 10:16:02 +0700
Subject: [PATCH] race_in_metrics (#1220)

---
 metrics/meter.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/metrics/meter.go b/metrics/meter.go
index 60ae919d0..24c329b4b 100644
--- a/metrics/meter.go
+++ b/metrics/meter.go
@@ -207,7 +207,9 @@ func (m *StandardMeter) Count() int64 {
 
 // Mark records the occurrence of n events.
 func (m *StandardMeter) Mark(n int64) {
-	atomic.AddInt64(&m.snapshot.temp, n)
+	m.lock.Lock()
+	m.snapshot.temp = n
+	m.lock.Unlock()
 }
 
 // Rate1 returns the one-minute moving average rate of events per second.