From ba15a6a9ea1c19a6dbac14ccc1c92a103b9834e0 Mon Sep 17 00:00:00 2001
From: Robin Ward <robin.ward@gmail.com>
Date: Wed, 13 Aug 2014 17:56:21 -0400
Subject: [PATCH] PERF: Only delete 100 inactive users at once

---
 app/models/user.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/models/user.rb b/app/models/user.rb
index 1e982826e39..b9ebf903417 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -728,6 +728,7 @@ class User < ActiveRecord::Base
                      .joins('INNER JOIN user_stats AS us ON us.user_id = users.id')
                      .where("created_at < ?", SiteSetting.purge_inactive_users_grace_period_days.days.ago)
                      .where('us.post_count = 0')
+                     .limit(100)
 
     destroyer = UserDestroyer.new(Discourse.system_user)
     to_destroy.each do |u|