wsrep-enabled MySQL (previously MySQL/Galera cluster) can use wsrep replication providers, such as Galera, to form a cluster. wsrep API is an abstract replication interface that supports global transaction ID, true multi-master capability, conflict detection and resolution, and parallel applying and is transparent to triggers, stored procedures, and functions by replicating only final transaction results. Only the InnoDB storage engine and DDL commands are supported by this patch.
| Tags | DBMS Cluster |
|---|---|
| Licenses | GPLv2 |
| Operating Systems | Linux |
| Implementation | C C++ |
Recent releases


Release Notes: This release is compatible with MySQL 5.1.62 (a security update) and adds support for wsrep_sst_method=skip and a way to provide a list of peers to mysqld_safe.


Release Notes: This release fixes parallel applying with foreign keys and varchar keys certification. It also adds support for MySQL replication filters, skipping state transfer (wsrep_sst_method=skip), and a way to specify a list of potential peers for the mysqld_safe script.


Release Notes: This version is for MySQL 5.5.23. It fixed problems where ALTER TABLE RENAME and row deletion could conflict on slave, the slave could fail if the max_allowed_packet size was exceeded, the clustered index was not included in the key set, and locking sessions could deadlock multi-master. New experimental features were added: runtime consistency check support, hard crash GTID recovery, MyISAM storage engine support (incomplete), and Solaris 11 x86 build support.


Release Notes: This is a major maintenance release for the MySQL 5.5 series. It has upgraded to MySQL 5.5.20 and wsrep API v23. It has full foreign key support (requires Galera 2.0). It fixes a number of possible deadlocks involving MDL and GRL, fixes replication of view, trigger, event, function, and procedure definers, and fixes total order isolation for CREATE...SELECT... statement. It drops the usage of the InnoDB drop queue (a major consistency threat). It fixes slow query logging, fixes a self-crash due to "semaphore wait has lasted > 600 seconds" during rsync SST, and has many other bugfixes.


Release Notes: This is a maintenance release for the MySQL 5.1 series. It has been upgraded to MySQL 5.1.61 and wsrep API v23. It has full foreign key support (with Galera 2.0). It fixes total order isolation for the CREATE..SELECT statement, fixes a self-crash due to "semaphore wait has lasted > 600 seconds" during rsync SST, fixes replication of a function call result when called from SELECT, and has miscellaneous fixes and improvements in state transfer code.