Release Notes for MariaDB Enterprise Server 10.5.5-3

This third release of MariaDB Enterprise Server 10.5 is a maintenance release, including a variety of fixes.

MariaDB Enterprise Server 10.5.5-3 was released on 2020-09-08.

Note

With MariaDB Enterprise Server 10.5 "mysql" command names are replaced with "mariadb" command names. Symbolic links are in place to maintain backward compatibility with the old names and prevent disruption. (MDEV-21303)

Fixed Security Vulnerabilities

Notable Changes

• UPDATE privilege for system user mariadb.sys removed for system table mysql.global_priv ()

• Deprecated InnoDB configuration parameters: ()

  • innodb_thread_concurrency

  • innodb_commit_concurrency

Issues Fixed

Can result in data loss

• doublewrite recovery can corrupt data pages. ()

• table can disappear when trying to change primary key after disabling Foreign Key checks and violating a Foreign Key constraint. (MENT-804)

• Possible data inconsistency when executing ADD PRIMARY KEY with concurrent DML transactions. ()

Can result in a hang or crash

• deadlock in ()

• data file extension is not crash-safe. ()

• is not crash safe. ()

• Deadlock involving parallel workers, , and ()

Can result in unexpected behavior

• Service shutdown fails if OS datetime has been updated backwards. ()

• ALTER TABLE .. ANALYZE PARTITION can run for hours for huge tables if engine-independent persistent statistics are enabled, due to reading and locking of all rows in the table instead of for the partition. ()

• can fail with privilege error when privilege exists at database level but privilege exists at table level. ()

Related to install and upgrade

• and can't run if the library file doesn't exist. ()

Changes in Storage Engines

• This release includes Enterprise (plugin version 1.5.3.2).

• This release includes , including ODBC Wrapper support.

Interface Changes

• system variable default value changed from 150000 to 0 (now deprecated)

• system variable default value changed from 5000 to 0 (now deprecated)

• system variable default value changed from 10000

Platforms

In alignment with the , MariaDB Enterprise Server 10.5.5-3 is provided for:

• AlmaLinux 8 (x86_64, ARM64)

• AlmaLinux 9 (x86_64, ARM64)

• Debian 11 (x86_64, ARM64)

• Debian 12 (x86_64, ARM64)

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

Note

MariaDB Enterprise Server 10.5 removes support for Red Hat Enterprise Linux (RHEL) 6 and CentOS 6.

Installation Instructions

Upgrade Instructions