From ec3dd2d0772bcd4f579f0f1ba8c550e22bd42511 Mon Sep 17 00:00:00 2001
From: Marvin Zhang <tikazyq>
Date: Mon, 20 Oct 2025 13:43:55 +0800
Subject: [PATCH] fix(grpc/client): protect GetGrpcClient with _clientMux lock
 to avoid race during singleton init

---
 core/grpc/client/client.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/grpc/client/client.go b/core/grpc/client/client.go
index f68f3e09..8c62afd7 100644
--- a/core/grpc/client/client.go
+++ b/core/grpc/client/client.go
@@ -1059,6 +1059,9 @@ var _clientOnce sync.Once
 var _clientMux sync.Mutex
 
 func GetGrpcClient() *GrpcClient {
+	_clientMux.Lock()
+	defer _clientMux.Unlock()
+
 	_clientOnce.Do(func() {
 		_client = newGrpcClient()
 		go _client.Start()