Percona Server moved to https://jira.percona.com/projects/PS 5.5.13-20.4
Based on MySQL 5.5.13
Milestone information
- Active:
- No. Drivers cannot target bugs and blueprints to this milestone.
Activities
- Assigned to you:
- No blueprints or bugs assigned to you.
- Assignees:
- 2 Alexey Kopytov, 1 Ignacio Nin, 2 Laurynas Biveinis, 9 Oleg Tsarev, 2 Rodrigo Gadea, 7 Stewart Smith
- Blueprints:
- 2 Implemented
- Bugs:
- 3 Invalid, 29 Fix Released
Download files for this release
Release notes
Percona is glad to announce the release of Percona Server 5.5.13-20.4 on June 9, 2011 (Downloads are available here and from the Percona Software Repositories).
Based on MySQL 5.5.13, Percona Server Percona Server 5.5.13-20.4 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 5.5.13-20.4 milestone at Launchpad.
Improvements
SHM Buffer Pool has been replaced with LRU Dump/Restore
The ”SHM” buffer pool patch, which provided the ability to use a shared memory segment for the buffer pool to enable faster server restarts, has been removed. Instead, we recommend using the LRU Dump/Restore patch which provides similar improvements in restart performance.
Replacement is due to SHM buffer pool both being very invasive and not widely used. Improved restart times are better provided by the much safer LRU D/R patch which has the advantage of also persisting across machine restarts.
The configuration variables for my.cnf have been kept for compatibility and warnings will be printed for the deprecated options (innodb_
Instructions for disabling the SHM buffer pool can be found here.
Instructions on setting up LRU dump/restore can be found here.
Bug Fixes
On a high concurrency environment with compressed tables, users may experience crashes due to improper mutex handling inbuf_page_
XtraDB crashed when importing big tables (e.g. 350G) using the Expand Table Import feature due to a timeout. Bug Fix: #684829 (Y. Kinoshita).
Partitioning adaptive hash index may leave to a hangup of the server in some scenarios. Bug Fix: #791030 (Y. Kinoshita).
Statistics gathering for each record’s update. Bug #791092 (Y. Kinoshita)
Other Changes
Improvements and fixes on the Percona Server Test Suite: , #693415, #794849, #800035, #800559, #782391,#785566, #790199 (O. Tsarev, Y. Kinoshita, S. Smith).
Improvements and fixes on platform-specific distribution: #737947
For more information, please see the following links:
Downloads: Binary distributions, Percona Software Repositories
Installation instructions
Consulting, support, training, and custom development
Release notes
Documentation
Developer discussion group
Changelog
This release does not have a changelog.
2 blueprints and 32 bugs targeted
Blueprint | Priority | Assignee | Delivery | |
---|---|---|---|---|
Update to MySQL 5.5.13 base | Update to MySQL 5.5.13 base | 5 Essential | Oleg Tsarev | 11 Implemented |
Remove buffer_pool shm in PS5.5 | Remove buffer_pool shm in PS5.5 | 4 High | 11 Implemented |