From: ThibG <thib@sitedethib.com>
Date: Wed, 5 Dec 2018 21:51:12 +0000 (+0100)
Subject: Attempt fixing deadlocks by moving account stats update outside transaction (#9437)
X-Git-Url: https://git.xn--scling-oua.cat.family/?a=commitdiff_plain;h=1a22eff1e00194e50751f2ea91ec7326ef15b4fc;p=mastodon.git

Attempt fixing deadlocks by moving account stats update outside transaction (#9437)

* Use `update_column` instead of `update_attribute` in callback

`update_attribute` would normally cause callbacks to be called.
Called from a callback, it seems to stop further callbacks from executing.

`update_column` does the same work, but without calling callbacks or
preventing other callbacks from executing.

* Fix deadlocks by moving account stats update outside transaction
---

diff --git a/app/models/status.rb b/app/models/status.rb
index 2e894a6f1..0705ba4c1 100644
--- a/app/models/status.rb
+++ b/app/models/status.rb
@@ -236,8 +236,8 @@ class Status < ApplicationRecord
     update_status_stat!(key => [public_send(key) - 1, 0].max)
   end
 
-  after_create  :increment_counter_caches
-  after_destroy :decrement_counter_caches
+  after_create_commit  :increment_counter_caches
+  after_destroy_commit :decrement_counter_caches
 
   after_create_commit :store_uri, if: :local?
   after_create_commit :update_statistics, if: :local?
@@ -426,7 +426,7 @@ class Status < ApplicationRecord
   end
 
   def store_uri
-    update_attribute(:uri, ActivityPub::TagManager.instance.uri_for(self)) if uri.nil?
+    update_column(:uri, ActivityPub::TagManager.instance.uri_for(self)) if uri.nil?
   end
 
   def prepare_contents