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--- install_22_4 [2024/02/09 09:30] – system
+++ install_22_4 [2024/09/19 10:20] (current) – [Install MariaDB] system
@@ Line 1: / Line 1: @@
-~~NOTOC~~
+<nav type="pills" justified="false">
-<nav type="pills" justified="true">
   * [[:user_manuals|Back to Documentation]]
   * [[:install_22_4|Install on Ubuntu 22.04]]
@@ Line 250: / Line 249: @@
 sql_mode=IGNORE_SPACE,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
 </code>
-  * Save the file and restart the MySQL server
+=== Enable the Event Scheduler ===
+  * MariaDB and MySQL has a built in Event Scheduler (like CRON for a database) which is disabled by default.
+  * We make use of this feature to automatically optimize some of the database tables.
+  * We will enable the Event Scheduler in MariaDB by creating a new file /etc/mysql/conf.d/enable_event_scheduler.cnf
+<code bash>
+sudo vi /etc/mysql/conf.d/enable_event_scheduler.cnf
+</code>
+  * Enter these two lines:
+<code bash>
+[mysqld]
+event_scheduler=on
+</code>
+  * Save the file.
+  *  Restart the MySQL server
 <code bash>
 sudo systemctl restart mariadb
+</code>
+  * You can confirm that it is now enabled by checking the following from the SQL terminal:
+<code bash>
+sudo mysql -u root
+MariaDB [(none)]> SHOW GLOBAL VARIABLES LIKE 'event_scheduler';
++-----------------+-------+
+| Variable_name   | Value |
++-----------------+-------+
+| event_scheduler | ON    |
++-----------------+-------+
+row in set (0.001 sec)
 </code>
@@ Line 378: / Line 401: @@
 <code bash>
 sudo mysql -u root rd < /var/www/rdcore/cake4/rd_cake/setup/db/8.068_add_email_sms_histories.sql
+</code>
+  * Some of these patches may add new columns to existing database tables. In this case, it is recommended to clear the CakePHP models (tables) cache to ensure that the latest changes are also applied there:
+<code bash>
+sudo su
+cd /var/www/rdcore/cake4/rd_cake/tmp/cache/models
+rm *
+exit
 </code>
 </alert>