发布于 2014-11-03 22:48:08 | 89 次阅读 | 评论: 0 | 来源: 网友投递
Percona Server Mysql分支数据库
Percona Server是MySQL的改进版本,使用 XtraDB 存储引擎,在功能和性能上较 MySQL 有着很显著的提升,如提升了在高负载情况下的 InnoDB 的性能,为 DBA 提供了一些非常有用的性能诊断工具,另外有更多的参数和命令来控制服务器行为。
Percona 为 MySQL 数据库服务器进行了改进,在功能和性能上较 MySQL 有着很显著的提升。该版本提升了在高负载情况下的 InnoDB 的性能、为 DBA 提供一些非常有用的性能诊断工具;另外有更多的参数和命令来控制服务器行为。
Percona Server 只包含 MySQL 的服务器版,并没有提供相应对 MySQL 的 Connector 和 GUI 工具进行改进。
Percona Server 使用了一些 google-mysql-tools, Proven Scaling, Open Query 对 MySQL 进行改造。
Percona Server 5.6.21-70.0 发布,此版本现已提供在 Percona 主页或者是 Percona 软件库。此版本支持 Ubuntu 14.10 和 CentOS7。
此版本是基于 MySQL 5.6.21,包括其所有的 bug 修复,是当前最新的稳定版本。
更新内容如下:
新特性
Percona Server has ported new super-read-only option from WebScaleSQL.
Percona Server has implemented CSV engine mode for standard-compliant quote and comma parsing. This feature also fixes the bug #1316042 (upstream #71091).
Percona Server now supports Read Free Replication for TokuDB storage engine.
TokuDB storage engine package has been updated to version 7.5.2.
Bugs 修复:
Values of IP
and DB
fields in the Audit Log Plugin were incorrect. Bug fixed #1379023.
Specifying the --malloc-lib
during the server start would produce two LD_PRELOAD
entries, if a system-wide jemalloc library was installed. Bug fixed #1382069.
In multi-threaded slave replication setup, an incomplete log event group (the one which doesn’t end with COMMIT/ROLLBACK/XID
) in a relay log could have caused a replication stall. An incomplete log event group might occur as a result of one of the following events: 1) slave crash; 2) STOP SLAVE
or FLUSH LOGS
command issued at a specific moment; 3) server shutdown at a specific moment. Bug fixed #1331586 (upstream #73066).
Purging bitmaps exactly up to the last tracked LSN would abort XtraDB changed page tracking. Bug fixed #1382336.
mysql_install_db
script would silently ignore any mysqld startup failures. Bug fixed #1382782 (upstream #74440).
其他 bug 修复: #1369950, #1335590, #1067103, and #1282599.
更多更新内容请看 online documentation。