Percona Server 5.1.54-12.5

Percona Server version 5.1.54-12.5 is now available for download. It is now the current stable release version.

Functionality Added or Changed

• Percona Server 5.1.54-12.5 is based on MySQL 5.1.54.
• New Features Added: None
• Other Changes:

  • Added system variable innodb_log_block_size and new value “keep_average” to system variable adaptive_checkpoint in Improved InnoDB I/O Scalability. (Yasufumi Kinoshita)
  • Added new value “ALL_O_DIRECT” to system variable innodb_flush_method in Improved InnoDB I/O Scalability. (Yasufumi Kinoshita)

Bugs Fixed

• Bug #689830 – The development environment tests of show_slave_status_nolock work only on statement-based replication. They were failing when row-based replication was attempted. A check is now made for the replication type to test. (Oleg Tsarev)
• Bug #688643, Bug #691234 – Boolean command line options and configuration variables in the slow_extended patch were not being processed properly.  (Oleg Tsarev)
• Bug #692211 – Starting the server with a non-zero innodb_auto_lru_dump value could crash the server if the dump file did not exist. (Alexey Kopytov)

For more information, please see the following links:

• Downloads — binary distributions and Percona Software Repositories
• Installation instructions
• Consulting, support, training, and custom development
• Release notes
• Documentation
• Developer discussion group