From d79a8ef40f5670af6962b598752dc5a7aa96722c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=88=98=E6=98=86?= <git@liukun.mm.st>
Date: Wed, 25 Dec 2019 12:11:23 +0800
Subject: [PATCH] fix: ignore empty hosts returned by CLUSTER SLOTS (#1025)

---
 lib/cluster/index.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/cluster/index.ts b/lib/cluster/index.ts
index 39c97680..c26fd28d 100644
--- a/lib/cluster/index.ts
+++ b/lib/cluster/index.ts
@@ -776,6 +776,9 @@ class Cluster extends EventEmitter {
 
           const keys = [];
           for (let j = 2; j < items.length; j++) {
+            if (!items[j][0]) {
+              continue;
+            }
             items[j] = this.natMapper({ host: items[j][0], port: items[j][1] });
             items[j].readOnly = j !== 2;
             nodes.push(items[j]);