From 20797726bbda450e70f6fe0827c5f9152dd5b036 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20Mudr=C3=A1k?= <david@moodle.com>
Date: Sun, 6 Feb 2022 21:53:44 +0100
Subject: [PATCH] MDL-73748 admin: Check for available updates daily on random
 time

It's been a mistake to make every Moodle site out there to check for
available update every two hours, on the hour. We are experiencing
server load peaks that are harder and harder to deal with.

The patch addresses this by (1) checking for available updates just once
a day and (2) distributing the checking times randomly around the clock.
---
 lib/db/tasks.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/db/tasks.php b/lib/db/tasks.php
index 9393cfca996..e74d181b186 100644
--- a/lib/db/tasks.php
+++ b/lib/db/tasks.php
@@ -242,8 +242,8 @@ $tasks = array(
     array(
         'classname' => 'core\task\check_for_updates_task',
         'blocking' => 0,
-        'minute' => '0',
-        'hour' => '*/2',
+        'minute' => 'R',
+        'hour' => 'R',
         'day' => '*',
         'dayofweek' => '*',
         'month' => '*'