DEV: Don't blow up request redis can't be reached during failover.

2020-06-11 11:41:06 +08:00 · 2020-06-11 11:41:06 +08:00 · cbb4ea1ea8
parent 531eca985e
commit cbb4ea1ea8
1 changed files with 9 additions and 4 deletions
--- a/config/initializers/002-rails_failover.rb
+++ b/config/initializers/002-rails_failover.rb
@ -65,9 +65,14 @@ if ENV["ACTIVE_RECORD_RAILS_FAILOVER"]
  end

  RailsFailover::ActiveRecord.register_force_reading_role_callback do
-    Discourse.redis.exists(
-      Discourse::PG_READONLY_MODE_KEY,
-      Discourse::PG_FORCE_READONLY_MODE_KEY
-    )
+    begin
+      Discourse.redis.exists?(
+        Discourse::PG_READONLY_MODE_KEY,
+        Discourse::PG_FORCE_READONLY_MODE_KEY
+      )
+    rescue => e
+      Discourse.warn_exception(e)
+      false
+    end
  end
 end