From a4c4560f323a8c82e761ac29da7716ae072fb43d Mon Sep 17 00:00:00 2001
From: kazu <kazu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 20 Oct 2018 07:49:34 +0000
Subject: Reset primary_server when remove_server

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65214 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/drb/drb.rb | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/drb/drb.rb b/lib/drb/drb.rb
index a20ee1f143..6da8c5f6a7 100644
--- a/lib/drb/drb.rb
+++ b/lib/drb/drb.rb
@@ -1866,6 +1866,11 @@ module DRb
   # Removes +server+ from the list of registered servers.
   def remove_server(server)
     @server.delete(server.uri)
+    mutex.synchronize do
+      if @primary_server == server
+        @primary_server = nil
+      end
+    end
   end
   module_function :remove_server
 
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