MySQL 備份工具，XtraBackup 2.2.8 發布

Percona XtraBackup 2.2.8 發布了，XtraBackup 是一個用來備份 MySQL 的 InnoDB 數據庫的開源工具。該版本基于 MySQL 5.6.22，修復了一些 bug：

Bugs Fixed:

• Incremental backups would fail if the number of undo tablespaces (innodb_undo_tablespaces) was more than1. This was caused by innobackupex removing the undo tablespaces during the prepare phase. Bug fixed #1363234.

• Fixed multiple memory leaks detected by AddressSanitizer. Bug fixed #1395143.

• innobackupex could fail when preparing backup that was taken from Percona Server 5.5 with log files (innodb_log_file_size) bigger than4G. The root cause was that the last checkpoint LSN offset in log group is stored at different offsets inibdata1for Percona Server 5.5 and MySQL 5.6 when the total size of log files is greater than4G. Bug fixed #1403237.

• Percona XtraBackup out-of-source builds failed. Bug fixed #1402450.