From 7627cb441de85471b906b87c133b338f2a78ef20 Mon Sep 17 00:00:00 2001
From: Nikita Koksharov <nkoksharov@redisson.pro>
Date: Wed, 23 Nov 2022 10:12:28 +0300
Subject: [PATCH] Fixed - pubsub/updates broken after AWS Elasticache cluster
 failover. #4653

---
 .../java/org/redisson/cluster/ClusterConnectionManager.java    | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/redisson/src/main/java/org/redisson/cluster/ClusterConnectionManager.java b/redisson/src/main/java/org/redisson/cluster/ClusterConnectionManager.java
index a22598bf1..9f50e27d7 100644
--- a/redisson/src/main/java/org/redisson/cluster/ClusterConnectionManager.java
+++ b/redisson/src/main/java/org/redisson/cluster/ClusterConnectionManager.java
@@ -860,7 +860,8 @@ public class ClusterConnectionManager extends MasterSlaveConnectionManager {
             List<ClusterPartition> ps = partitions.values()
                     .stream()
                     .filter(cp -> cp.getType() == Type.MASTER
-                            && cp.getMasterAddress() != null)
+                                    && cp.getMasterAddress() != null
+                                        && ((!cp.slots().isEmpty() && partitions.size() == 1) || partitions.size() > 1))
                     .collect(Collectors.toList());
             return ps;
         });