From 4943b5cf6a5c0f8d20fbe207ab39b768a9af4fdb Mon Sep 17 00:00:00 2001
From: Ti Chi Robot <ti-community-prow-bot@tidb.io>
Date: Mon, 17 Jun 2024 11:40:16 +0800
Subject: [PATCH] rc: fix group change will meet data race (#8268) (#8293)

close tikv/pd#8267

Signed-off-by: husharp <jinhao.hu@pingcap.com>

Co-authored-by: husharp <jinhao.hu@pingcap.com>
---
 pkg/mcs/resourcemanager/server/manager.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkg/mcs/resourcemanager/server/manager.go b/pkg/mcs/resourcemanager/server/manager.go
index ef402b8cbf9..418d188823f 100644
--- a/pkg/mcs/resourcemanager/server/manager.go
+++ b/pkg/mcs/resourcemanager/server/manager.go
@@ -129,7 +129,9 @@ func (m *Manager) Init(ctx context.Context) error {
 		return err
 	}
 	// Load resource group meta info from storage.
+	m.Lock()
 	m.groups = make(map[string]*ResourceGroup)
+	m.Unlock()
 	handler := func(k, v string) {
 		group := &rmpb.ResourceGroup{}
 		if err := proto.Unmarshal([]byte(v), group); err != nil {