Buy Percona ServicesBuy Now!

Percona Server 5.5.24-26.0

Percona is glad to announce the release of Percona Server 5.5.24-26.0 on June 1st, 2012 (Downloads are available here and from the Percona Software Repositories).

Based on MySQL 5.5.24, including all the bug fixes in it, Percona Server 5.5.24-26.0 is now the current stable release in the 5.5 series. All of Percona‘s software is open-source and free, all the details of the release can be found in the 5.5.24-26.0 milestone at Launchpad.


  • Percona PAM Authentication Plugin has now been integrated into the Percona Server.
  • Percona Server has implemented variable enforce_storage_engine which can be used for enforcing the use of a specific storage engine.

Bug Fixes

  • A Server acting as a replication slave with the query cache enabled could crash with glibc detected memory corruption. This bug was introduced in MySQL 5.5.18 and Percona Server inherited it from MySQL. Bug fixed #915814 (George Ormond Lorch III).
  • Loading LRU dump was preventing shutdown. Bug fixed #712055 (George Ormond Lorch III).
  • A crash could leave behind an InnoDB temporary table with temporary indexes resulting in an unbootable server. Bug fixed #999147 (Laurynas Biveinis).
  • Since the output file is simply overwritten when dumping the LRU list, we could end up with a partially written dump file in case of a crash, or when making a backup copy of it. Safer approach has been implemente. It now dumps to a temporary file first, and then rename it to the actual dump file. Bug fixed #686392 (George Ormond Lorch III).
  • LRU messages are now more verbose for LRU dump. Bug fixed #713481 (George Ormond Lorch III).
  • Building Percona Server with the Clang compiler resulted in a compiler error. Bug fixed #997496 (Alexey Kopytov).
  • Variable thread_statistics was a reserved word in Percona Server 5.5. As a result, the server variable with that name had to be quoted with backticks when used. Bug fixed #997036 (Vladislav Lesin).
This documentation is developed in Launchpad as part of the Percona Server 5.5.
If you spotted inaccuracies, errors, don't understand it or you think something is missing or should be improved, please file a bug.
Visit Percona Store

General Inquiries

For general inquiries, please send us your question and someone will contact you.