发布于 2016-07-09 00:18:16 | 43 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 Server 5.5.50-38.0 发布了，基于MySQL 5.5.50，包括它所有的bug修复，Percona Server 5.5.50-38.0是Percona Server 5.5系列中的稳定版本。可在此处或Percona Software Repositories下载。Percona完全提供开源和免费软件，发布的所有细节可以在 5.5.50-38.0 milestone 找到。
新特性：
Percona Server has implemented protocol support for TLS 1.1 and TLS 1.2. This implementation turns off TLS v1.0 support by default.
Querying the GLOBAL_TEMPORARY_TABLES table would cause server crash if temporary table owning threads would execute new queries. Bug fixed #1581949.
The innodb_log_block_size feature attempted to diagnose the situation where the logs have been created with a log block value that differs from the current innodb_log_block_size setting. But this diagnostics came too late, and a misleading error No valid checkpoints found was produced first, aborting the startup. Bug fixed #1155156.
AddressSanitizer build with LeakSanitizer enabled was failing at gen_lex_hash invocation. Bug fixed#1580993 (upstream #80014).
ssl.cmake file was broken when custom OpenSSL build was used. Bug fixed #1582639 (upstream #61619).
mysqlbinlog did not free the existing connection before opening a new remote one. Bug fixed #1587840(upstream #81675).
Fixed memory leaks in mysqltest. Bugs fixed #1582718 and #1588318.
Fixed memory leaks in mysqlcheck. Bug fixed #1582741.
Fixed memory leak in mysqlbinlog. Bug fixed #1582761 (upstream #78223).
Fixed memory leaks in mysqldump. Bug fixed #1587873 and #1588845 (upstream #81714).
Fixed memory leak in innochecksum. Bug fixed #1588331.
Fixed memory leak in non-existing defaults file handling. Bug fixed #1588344.
Fixed memory leak in mysqlslap. Bug fixed #1588361.
其他bug修复：
#1588169, #1588386, #1529885, #1587757, #1587426 (upstream, #81657), #1587527, #1588650, and#1589819.
更新内容可在在线文档中找到，bug修复详情可在launchpad bug tracker 找到。
详细发行说明请查看：Percona Server 5.5.50-38.0 is now available