Galera Cluster for MySQL 5.7.41 and MySQL 8.0.32 released

Codership is pleased to announce a new Generally Available (GA) release of the multi-master Galera Cluster for MySQL 5.7, consisting of MySQL-wsrep 5.7.41 (release notes, download) and MySQL-wsrep 8.0.32 (release notes, download). This release incorporates all changes to MySQL 5.7.41 and MySQL 8.0.32 respectively, adding a synchronous option for your MySQL High Availability solutions.

This release is somewhat unique for MySQL 8, in that you continue to use the Galera replication library 4.14 (release notes, download) from the previous release. For MySQL 5.7, you continue using the Galera replication library 3.37 implementing the wsrep API version 25 for MySQL 5.7.41. One can presume that unless there is a bug, we will not be releasing a new version of the library, as MySQL 5.7 goes End of Life (EOL) in October 2023. We strongly encourage you to upgrade from MySQL-wsrep 5.7 to MySQL-wsrep 8.0.

In MySQL 5.7.41, we have made minor changes to the wsrep_diag.sql script, allowing all output to go to the same output stream, whether you call this from SQL or echo; this ensures output is easier to read.

In MySQL 8.0.32, we incorporated the above change, and have ran ASAN to enable us to realise that there can be better handling of SST scripts in environments where it is enabled. Running ASAN helped us find and fix memory leaks around apply failures, as well as when one executes ALTER TABLESAPCE. The wsrep patch works with lock order debug instrumentation, and now we have also removed a check for innodb_lock_schedule_algorithm which does not exist in MySQL 8.

Please download the latest software and update your Galera Clusters! We continue to provide repositories for popular Linux distributions, and we encourage you to use them. Contact us more more information about what Galera Cluster Enterprise Edition can do for you.