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MySQL/Galera Release 0.7.2

This is binary release of synchronous multi-master MySQL cluster using wsrep API and Galera synchronous replication engine. Requires libstdc++-4.1.1 or higher.

This is our production-oriented maintenance release. It has no single point of failure and supports adding nodes to live cluster. There are important configuration changes since previous releases. Don't forget to check README.

Binaries:

mysql-5.1.42-galera-0.7.2-i686.tgz
mysql-5.1.42-galera-0.7.2-x86_64.tgz

Source:

MySQL: lp:~codership/codership-mysql/release-0.7
Galera: galera-source-0.7.2.tgz (GPLv3)

Changes

since 0.7.1:

  • node join operation could lead to crash, if joining node were connected before the DB state transfer to joining node had started. Fixed.
  • loading a large mysql dump file could lead to out of memory situation if it contained LOCK statements and wsrep_convert_LOCK_to_trx was set to 1. Now by default wsrep_convert_LOCK_to_trx is set to 0.
  • faster failed node detection.
  • updated to MySQL-5.1.42

since 0.7.0:

  • a number of bugs pertaining to DDL/DML concurrency was fixed
  • updated to MySQL-5.1.41

since 0.7pre:

  • fully distributed group communication with no SPOF.

since 0.6:

  • adding and dropping nodes in active cluster.
  • mysqldump based DB state snapshot transfer
  • merge with MySQL 5.1.41
  • status variables (SHOW STATUS LIKE 'wsrep%')