Release Notes for MariaDB Enterprise Server 10.3.21-5

This fifth release of MariaDB Enterprise Server 10.3 is a maintenance release, including a variety of fixes.

MariaDB Enterprise Server 10.3.21-5 was released on 2020-01-06.

Notable Changes

• no longer sends unnecessary warnings to the error log about maximum row size for DDL statements when and

• Redundant writes to the redo log have been removed.

• The default for the plugin load option plugin-maturity is now stable

• and the MariaDB Audit plugin trace now add the user who initiated statements with the DELAYED option. In previous versions a system user was added.

Issues Fixed

Can result in data loss

• A table could not be loaded after an instant ALTER ... ADD COLUMN or ALTER ... DROP COLUMN, if the primary key is a column with variable-length encoding like UTF8

Can result in a hang or crash

• Primary (master) could crash when it executes and a replica (slave) reconnects having reset its connection status with the primary (e.g., CHANGE MASTER TO MASTER_USE_GTID = slave_pos).

• "Out of memory" error could occur when accessing partitioned tables.

• A crash could occur when ADD PRIMARY KEY was executed by a connection just after another connection issued an instant ADD COLUMN

Can result in unexpected behavior

• Client received error SEC_E_INVALID_TOKEN when SSL is used and connecting to MariaDB Enterprise Server running on Microsoft Windows.

• The restore of tables was not always possible if was using the parameters --incremental

• An incomplete result set was returned when was too small.

Interface Changes

• None

Platforms

In alignment with the , MariaDB Enterprise Server 10.3.21-5 is provided for:

• Red Hat Enterprise Linux 8

• Red Hat Enterprise Linux 7

• Red Hat Enterprise Linux 6

• CentOS 8

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