MariaDB Enterprise Server and Cluster 5.5.42 Release Notes and Changelog

MariaDB Enterprise Server 5.5.42 Release Notes

This version of MariaDB Enterprise is built off MariaDB 5.5.42. Starting with this release, we are now providing only 64bit (x86_64) Linux packages, 32bit (x86) Linux packages have been discontinued.

Notable Changes

• As always with MariaDB Enterprise, additional testing and checks have been done to ensure the highest quality.

• The new version of the Audit Plugin is 1.2 and includes the following new features:

• In the audit log, passwords are now masked, i.e. the password characters are replaced with asterisks.
  • It's now possible to filter logging to include only DDL (CREATE, ALTER, etc.) or DML (INSERT, UPDATE, etc.) statements.
  • For more information please refer to the About the MariaDB Audit Plugin page. The plugin is disabled by default.
  • Low-level network Client API With this release we introduce a low-level Client API. Applications, linked with libmysqlclient client library can use these functions to read and parse raw protocol packets:
    • unsigned long mysql_net_read_packet(MYSQL *mysql);
    • unsigned long mysql_net_field_length(unsigned char **packet);
• TokuDB updated to version 7.5.5

MariaDB Enterprise on POWER8 Notes

• The binaries and packages for MariaDB on POWER8 do not include the following storage engines:
  • Connect
  • OQGraph
• On Red Hat Enterprise Linux 7.0 there exists a missing memory barrier bug that can cause MariaDB to crash. Until this bug is fixed in the kernel of the operating system it’s recommended to disable InnoDB’s use of native AIO by adding skip-innodb-use-native-aio into the [mysqld] section of the my.cnf configuration file.

MariaDB Enterprise Cluster 5.5.42 Release Notes

This version of MariaDB Enterprise Cluster is built off MariaDB Galera Cluster 5.5.42 and is mainly an upgrade to benefit from many fixes and improvements in MariaDB Galera 5.5.42, including some backported fixes, detailed in the changelog. Starting with this release, we are now providing only 64bit(x86_64) Linux packages, 32bit (x86) Linux packages have been discontinued.

Noteable Changes:

• With this version of MariaDB Enterprise Cluster we are introducing packages for the Power 8 version of Ubuntu 14.04 “trusty”.
• The Galera library used by MariaDB Enterprise Cluster and included in the MariaDB repositories has been updated to version 25.3.9.
• On Ubuntu and Debian, as part of the upgrade to Galera version 25.3.9, the Galera Arbitrator daemon (garbd) and the galera library have been renamed and split into separate packages. The packages are named galera-3 and galera-arbitrator-3. When installing MariaDB Enterprise Cluster on Ubuntu and Debian (the mariadb-galera-server package), the galera-3 package will be automatically installed. You can then install the arbitrator package on a separate node (recommended) or on one of the nodes running mariadb-galera-server (not recommended).
• Running MariaDB Enterprise Cluster 5.5 and 10.0 nodes in a cluster is not supported (MDEV-6257)
• This version of MariaDB Enterprise Cluster supports wsrep API v25 which means MariaDB Enterprise Cluster can be used with either a 25.2.x or 25.3.x Galera wsrep provider.
• A fix for the bug MDEV-7672 was backported in this release.