From 722abb81c575fec0e27cffce711b350288e14342 Mon Sep 17 00:00:00 2001
From: Aaron Liu <abslant.liu@gmail.com>
Date: Wed, 14 Jan 2026 12:41:26 +0800
Subject: [PATCH] fix(nodepool): exclusive lock should be held for weight LB

---
 pkg/cluster/pool.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkg/cluster/pool.go b/pkg/cluster/pool.go
index dfbc75de..20c74e81 100644
--- a/pkg/cluster/pool.go
+++ b/pkg/cluster/pool.go
@@ -87,8 +87,8 @@ func NewNodePool(ctx context.Context, l logging.Logger, config conf.ConfigProvid
 
 func (p *weightedNodePool) Get(ctx context.Context, capability types.NodeCapability, preferred int) (Node, error) {
 	l := logging.FromContext(ctx)
-	p.lock.RLock()
-	defer p.lock.RUnlock()
+	p.lock.Lock()
+	defer p.lock.Unlock()
 
 	nodes, ok := p.nodes[capability]
 	if !ok || len(nodes) == 0 {