From fc1de2dba9074176d687d944e7dbae6e5fed5300 Mon Sep 17 00:00:00 2001
From: Travis Turner <travis@pilosa.com>
Date: Fri, 18 Jan 2019 14:49:58 -0600
Subject: [PATCH] cluster.Nodes() just needs a read lock

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

diff --git a/cluster.go b/cluster.go
index e966c57a1..cbdb9f547 100644
--- a/cluster.go
+++ b/cluster.go
@@ -609,8 +609,8 @@ func (c *cluster) addNodeBasicSorted(node *Node) bool {
 // Nodes returns a copy of the slice of nodes in the cluster. Safe for
 // concurrent use, result may be modified.
 func (c *cluster) Nodes() []*Node {
-	c.mu.Lock()
-	defer c.mu.Unlock()
+	c.mu.RLock()
+	defer c.mu.RUnlock()
 	ret := make([]*Node, len(c.nodes))
 	copy(ret, c.nodes)
 	return ret