From e5b5099eef2f071acd588684ea647b0a830dc8f8 Mon Sep 17 00:00:00 2001
From: christianEQ <christian@eqalpha.com>
Date: Fri, 26 Nov 2021 20:36:46 +0000
Subject: [PATCH] don't save master if host is null

Former-commit-id: 8238d8da82c483c093f5248b9dac983bc542e20f
---
 src/replication.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/replication.cpp b/src/replication.cpp
index e1f34f2be..87f3be643 100644
--- a/src/replication.cpp
+++ b/src/replication.cpp
@@ -2126,6 +2126,10 @@ void saveMasterStatusToStorage()
     listRewind(g_pserver->masters,&li);
     while((ln = listNext(&li)) != NULL) {
         mi = (redisMaster*)listNodeValue(ln);
+        if (mi->masterhost == NULL) {
+            // if we don't know the host, no reason to save
+            continue;
+        }
         if (!mi->master) {
             // If master client is not available, use info from master struct - better than nothing
             if (mi->master_replid[0] == 0) {