Media Wiki Restoration

Internal

• Media Wiki Operations

Overview

This procedure documents restoration of a site instance backed up with the Media Wiki Backup procedure. Restoration implies performing a full new installation of the latest LTS version as a prerequisite, as described here Media Wiki Installation and then executing the database restoration script.

Check Preconditions

At this point, the new Media Wiki installation procedure should have created a temporary database and database user, defined here: Media Wiki Installation | Instance Restoration. At the end of the restoration, both the temporary database and the database users will be deleted. Verify that they are indeed created, and they are the only Media Wiki database and database user:

Connect to MariaDB

SHOW DATABASES;
SELECT user FROM mysql.user;

Restore the Database

Use the restoration script to create the database and the database user being restored, then restore the database.

backup-system/mediawiki-restore -v \
  /Users/ovidiu/tmp/2023.12.29-03.00.01-not500-kb.novaordis.com-backup.tgz \
  /opt/brew/var/www/mediawiki-1.39.6 -d /Users/ovidiu/tmp/post-install

Modify the script to be able to stop after restoring the database.

At this point, the MariaDB instance must contain both the temporary and the production database and database users.

SHOW DATABASES;
SELECT user FROM mysql.user;

Collect the production database user, password and database name from the script output.

Update /opt/brew/var/www/mediawiki-1.39.6/LocalSettings.php with those values:

$wgDBname = "novaordis_wiki";
$wgDBuser = "novaordis_wiki";
$wgDBpassword = "...";

Upgrade the Database

php maintenance/update.php

MediaWiki 1.35.14 Updater

Your composer.lock file is up to date with current dependencies!
Going to run database updates for novaordis_wiki
Depending on the size of your database this may take a while!
Abort with control-c in the next five seconds (skip this countdown with --quick) ... 0
...have ipb_id field in ipblocks table.1

...

el_id 10010 - 10402 of 10402
Done, 24 rows updated, 8 deleted.
Purging caches...done.

Done in 2 min 25 s.

Post Restoration

Database Cleanup

Drop the temporary database and user:

DROP DATABASE tmp_mediawiki_db;
DROP USER 'tmp_mediawiki_user'@'localhost';
COMMIT;

TO DEPLETE

DEPLETE and INTEGRATE: Restoring a Wiki into the Same or Newer MediaWiki Version