This section describes the steps required to downgrade from MySQL Enterprise Edition to MySQL Community Edition. This can be done at any time, and is required at the expiration of a MySQL Enterprise Edition subscription if you wish to continue using MySQL Server.
When you perform such a downgrade, all commercially licensed components of the MySQL Enterprise Edition subscription must be uninstalled. These components and related considerations are described in the rest of this section.
The issues described in this section are in addition to any that may be encountered as a result of any upgrade or downgrade of the MySQL Server version (such as between MySQL 5.1 and 5.0). Information about upgrading and downgrading between MySQL release series can be found elsewhere in this chapter; see Section 2.13.1, “Upgrading MySQL”, and Section 2.13.2, “Downgrading MySQL”.
MySQL Enterprise Database Server. All commercial versions of MySQL Database Server must be uninstalled.
Commercially licensed extensions. All commercially licensed MySQL Enterprise Database Server extensions must be uninstalled, including the MySQL High Availability extension. Following uninstallation of this extension, automated failover is no longer available.
MySQL Enterprise Backup. MySQL Enterprise Backup must be uninstalled. Uninstalling this application has the effects listed here:
Automated backup scripts no longer work.
Existing backup images taken with MySQL Enterprise Backup can no longer be used for recovery.
Third-party integration with multimedia systems such as NetBackup, Tivoli, and Oracle Secure Backup no longer works.
MySQL Enterprise Monitor, MySQL Query Analyzer, agents. MySQL Enterprise Monitor, MySQL Query Analyzer, and all server-side agents must be uninstalled. Uninstalling these applications and agents has the following effects:
Automated SNMP and SMTP alerts no longer work.
All historical MySQL, OS monitoring, query, and performance metrics as well as all trending data are lost.
All environment-specific monitoring templates, custom advisors, graphs and scripts are also lost.
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