From c7402ef794d07883ad38f5791eaaab9c9774517f Mon Sep 17 00:00:00 2001
From: Guo Xiang Tan <tgx_world@hotmail.com>
Date: Fri, 20 Oct 2017 05:45:09 +0800
Subject: [PATCH] FIX: Use a distributed cache to store failover state.

---
 .../connection_adapters/postgresql_fallback_adapter.rb          | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/active_record/connection_adapters/postgresql_fallback_adapter.rb b/lib/active_record/connection_adapters/postgresql_fallback_adapter.rb
index 5dc5f2278ec..af45125adc2 100644
--- a/lib/active_record/connection_adapters/postgresql_fallback_adapter.rb
+++ b/lib/active_record/connection_adapters/postgresql_fallback_adapter.rb
@@ -7,7 +7,7 @@ class PostgreSQLFallbackHandler
   include Singleton
 
   def initialize
-    @masters_down = {}
+    @masters_down = DistributedCache.new('masters_down')
     @mutex = Mutex.new
   end