From ba6e3f4a0e2d19afa82665c5b8d7d668bf2f74df Mon Sep 17 00:00:00 2001
From: r888888888 <r888888888@gmail.com>
Date: Mon, 5 Feb 2018 15:05:21 -0800
Subject: [PATCH] gracefully handle bad connection errors to replica db ref
 #3212

---
 app/models/post.rb | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/app/models/post.rb b/app/models/post.rb
index 685911222..21005a2c6 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -1226,6 +1226,8 @@ class Post < ApplicationRecord
       end
 
       count ? count.to_i : nil
+    rescue PG::ConnectionBad
+      return nil
     end
 
     def fast_count_search_batched(tags, options)
@@ -1243,6 +1245,9 @@ class Post < ApplicationRecord
         end
       end
       sum
+
+    rescue PG::ConnectionBad
+      return nil
     end
 
     def fix_post_counts(post)
@@ -1673,7 +1678,11 @@ class Post < ApplicationRecord
       end
 
       if read_only
-        PostQueryBuilder.new(query).build(PostReadOnly.where("true"))
+        begin
+          PostQueryBuilder.new(query).build(PostReadOnly.where("true"))
+        rescue PG::ConnectionBad
+          PostQueryBuilder.new(query).build
+        end
       else
         PostQueryBuilder.new(query).build
       end