Release Notes for MariaDB Enterprise Server 10.3.23-7

Fixed Security Vulnerabilities

#1:

MariaDB CVEs are assigned a word rating instead of a CVSS base score. See the MariaDB Engineering Policy for details.

Notable Changes

• mysql_upgrade now displays a warning when upgrading a replica from MySQL Server to MariaDB Enterprise Server if data was present in the mysql.slave_master_info and mysql.slave_relay_log_info tables. A warning is needed as this information will be ignored. (MDEV-10047)

• mysqldump has a new --ignore-table-data=<table> option. When used, the dump will include the table definition for the listed tables, but not the INSERT statements for the data in the table. (MDEV-22037)

• mariabackup has a new --rollback-xa option. By default, mariabackup will not commit or rollback uncommitted XA transactions, and when the backup is restored any uncommitted XA transactions must be manually committed using XA COMMIT or be manually rolled-back using XA ROLLBACK. The --rollback-xa option can be used to rollback uncommitted XA transactions while performing a --prepare operation, eliminating the need for manual commit or rollback when the backup is restored. (MDEV-21168)

• innodb_encryption_thread is now limited to 255. (MDEV-22258)

• shutdown-wait-for-slaves system variable added, to control that a primary server only completes the shutdown after the last binary log has been sent to all connected slaves. This behavior is not active by default. Before the addition of this system variable, this was achieved using mysqladmin shutdown --wait_for_all_slaves for a master. (MENT-202)

• aria_pack tool now provides the options --datadir, --ignore-control-file, --require-control-file for Aria tables with auto-recovery enabled (TRANSACTION=1). (MENT-657)

• innodb_instant_alter_column_allowed system variable added to control whether an instant ADD or DROP column or reorder can change an InnoDB format. The default is add_last to allow an instant ADD COLUMN as the last column of the table. Option never should be used if a tablespace import to older version of MariaDB Server should be possible. (MDEV-20590)

Issues Fixed

Interface Changes

• innodb_encryption_threads system variable maximum value changed from 4294967295 to 255

• innodb_instant_alter_column_allowed system variable added

• mariabackup --rollback-xa command-line option added

• mysqld --innodb-instant-alter-column-allowed command-line option added

• mysqld --shutdown-wait-for-slaves command-line option added

• mysqldump --ignore-table-data command-line option added

• shutdown_wait_for_slaves system variable added

Platforms

In alignment to the enterprise lifecycle, MariaDB Enterprise Server 10.3.23-7 is provided for:

• Red Hat Enterprise Linux 8

• Red Hat Enterprise Linux 7

• Red Hat Enterprise Linux 6

• CentOS 8

• CentOS 7

• CentOS 6

• Ubuntu 20.04

• Ubuntu 18.04

• Ubuntu 16.04

• Debian 10

• Debian 9

• Debian 8

• SUSE Linux Enterprise Server 15

• SUSE Linux Enterprise Server 12

• Microsoft Windows

Some components of MariaDB Enterprise Server might not support all platforms. For additional information, see "MariaDB Corporation Engineering Policies".