From 013d76ce24ea1ed47c337219e91e8a1db663c72e Mon Sep 17 00:00:00 2001
From: GITSRC <34047788+gitsrc@users.noreply.github.com>
Date: Mon, 14 Jan 2019 16:02:58 +0800
Subject: [PATCH] Update hashring.go

---
 hashring.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hashring.go b/hashring.go
index 4ac0ffd..fb428cc 100644
--- a/hashring.go
+++ b/hashring.go
@@ -82,6 +82,8 @@ func (h *HashRing) UpdateNode(nodeKey string, weight int) {
 }
 
 func (h *HashRing) generate() {
+	h.mu.Lock()
+	defer h.mu.Unlock()
 	var totalW int
 	for _, w := range h.weights {
 		totalW += w