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Reminder: TokuDB Storage Engine Will Be Disabled by Default in Percona Server for MySQL 8.0.26

As we’ve communicated in our blog post in May, the TokuDB Storage Engine has been marked as “deprecated” in Percona Server for MySQL 8.0. It will be removed in a future version (Percona Server for MySQL 8.0.28, expected to ship in Q1 2022).
With the release of Percona Server for MySQL 8.0.26, the storage engine will still be included in the binary builds and packages but will be disabled by default. If you are upgrading from a previous version, the TokuDB Storage Engine plugin will fail with an error message at server startup if it is installed.
You will still be able to re-enable it manually so that you can perform the necessary migration steps.
Re-enabling the TokuDB Engine in Percona Server for MySQL 8.0.26 is fairly straightforward. You need to add the options tokudb_enabled=TRUE and tokudb_backup_enabled=TRUE options to your my.cnf file and restart your server instance.
Once the server is up and running again, you can migrate your data to an alternative storage engine like RocksDB or InnoDB before disabling and removing TokuDB. See the chapter Removing the TokuDB storage engine in our documentation for details.
Let us know if you have any questions or comments about this process!
If you need any assistance with migrating your data or have any questions or concerns about this, don’t hesitate to reach out to us – our experts are here to help!
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