Percona Server 5.5.28-29.1 发布_MySQL

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Percona Server 5.5.28-29.1 发布，该版本基于 MySQL 5.5.28，该版本移植了 Twitter 的 MySQL NUMA 补丁，该补丁改进了 NUMA 支持，避免 NUMA 节点间不均衡的内存分配。

另外还修复了一些 bug，包括：

• Percona Server would disconnect clients if gdb was attached and detached. This was caused by wrong signal handling. Bugs fixed #805805 and #1060136 (Laurynas Biveinis).
• Fixed the upstream MySQL #62856, where slave server would crash after update statement. Bug fixed #1053342 (George Ormond Lorch III).
• Reads from tablespaces being deleted would result in buffer pool locking error. Bug fixed #1042640 (Stewart Smith).
• Resolved the Ubuntu Percona Server package conflicts with upstream packages. Bug fixed #907499 (Ignacio Nin).
• Crash-resistant replication would break with binlog XA transaction recovery. If a crash would happened between XA PREPARE and COMMIT stages, the prepared InnoDB transaction would not have the slave position recorded and thus would fail to update it once it is replayed during binlog crash recovery. Bug fixed #1012715 (Laurynas Biveinis).

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