Redis lock Local plugin

Provides a Moodle lock factory class for locking with Redis.

This plugin was contributed by the Open LMS Product Development team. Open LMS is an education technology company dedicated to bringing excellent online teaching to institutions across the globe. We serve colleges and universities, schools and organizations by supporting the software that educators use to manage and deliver instructional content to learners in virtual classrooms.

Requirements

• Moodle 2.9 or greater
• Redis
• PHP Redis extension

Installation

Extract the contents of the plugin into /wwwroot/local then visit admin/upgrade.php or use the CLI script to upgrade your site.

Set:

• $CFG->local_redislock_redis_server with your Redis server's connection string.
  • It can be the hostname or IP address of the Redis server.
  • It can also be hostname:port if you want to use other port different than 6379 (Default)
• $CFG->lock_factory to '\\local_redislock\\lock\\redis_lock_factory' in your config file.
• $CFG->local_redislock_auth with your Redis server's password string.

Flags

• Logging is only available in the CLI environment with debugging enabled on DEBUG_NORMAL level at least. Use the boolean flag $CFG->local_redislock_logging to control whether verbose logging should be emitted. If not set, logging is automatically-enabled.
• Use the boolean flag $CFG->local_redislock_disable_shared_connection to force creation of the redis connection for each factory instance.

License

Copyright (c) 2021 Open LMS (https://www.openlms.net)

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.