wsrep patch for MySQL

As its name suggests, wsrep patch for MySQL is an open source patch for the MySQL database designed to use wsrep replication providers to form a cluster.

The wsrep API is an abstract replication interface that supports true multi-master capability, global transaction ID, conflict resolution and detection, and parallel applying.

What is new in this release:

• MySQL 5.6 support
• Support for MySQL 5.6 async replication GTID
• Preordered async replication events
• Experimental Query Cache support
• Merged MySQL up to 5.6.14

What is new in version 5.5.34-25.9:

• This is a major bugfix release that fixes over 30 bugs and upgrades to the latest MySQL 5.5 release, 5.5.34.
• Upgrading is recommended.

What is new in version 5.5.29-23.7.3:

• A whole bunch of foreign key issues:
• lp:1078346: SEGV on wsrep_append_foreign_key()
• lp:1089490: non-uniform FK reference can cause slave crash
• lp:1100496: mixed CHAR and VARCHAR columns in foreign key definition makes parallel applying fail
• lp:1117175: foreign Key problem with PXDBC 5.5.29-23.7.1-387
• lp:1130888: cascading FK constraint can cause slave hanging
• A whole host of serious bugs:
• lp:1144911: prepared statements could cause node hanging.
• lp:1019473: tables without primary keys could become inconsistent.
• lp:1112514: updates to temporary tables ...

Requirements:

• MySQL Community Edition
• Galera wsrep provider