From 45109cba56677d056f457e36825273ec80cc1593 Mon Sep 17 00:00:00 2001
From: Matheus Nogueira <matheus.nogueira2008@gmail.com>
Date: Thu, 14 Sep 2023 16:15:58 -0300
Subject: [PATCH] fix: use mutex

---
 server/traces/caching.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/server/traces/caching.go b/server/traces/caching.go
index dbc7657801..e53271ea71 100644
--- a/server/traces/caching.go
+++ b/server/traces/caching.go
@@ -8,6 +8,9 @@ var cache spanCache = nil
 var cacheMutex sync.Mutex
 
 func getCache() spanCache {
+	cacheMutex.Lock()
+	defer cacheMutex.Unlock()
+
 	if cache == nil {
 		cache = spanCache{}
 	}
@@ -16,6 +19,9 @@ func getCache() spanCache {
 }
 
 func resetCache() {
+	cacheMutex.Lock()
+	defer cacheMutex.Unlock()
+
 	cache = nil
 }