Percona XtraBackup 2.1.8 发布，此版本是目前 2.1.x 系列的 GA 版本。现已提供下载，其他下载途径：Percona Software Repositories。
Bugs Fixed
Due to incorrect usage of
posix_fadvise()hints, Percona XtraBackup discarded read-ahead buffers which resulted in higherI/Orate on the backup stage. Bug fixed #1093385.Spurious trailing data blocks that would normally be ignored by InnoDB could lead to an assertion failure on the backup stage. Bug fixed #1177201.
A spurious warning message could cause issues with third-party wrapper scripts. Bug fixed #1271956.
xbcrypt could fail with the
xbcrypt:xb_crypt_read_chunk: unable to read chunk iv size at offset errorunder some circumstances. Bug fixed #1273196.xbstream could sometimes hang when extracting a broken or incomplete input stream. Bug fixed #1273207.
Preparing backups of MySQL or Percona Server 5.6 could raise an assertion failure in Percona XtraBackup. Bug fixed #1273468.
The downtime is decreased when the
--safe-slave-backupoption is used to backup a replication slave. The SQL thread is now started before a temporary copy of redo log is streamed into the final location. Bug fixed #1284778.Disabled the “binary version check” functionality in the VersionCheck module due to security concerns. Bug fixed #1285166.
其他 bug 修复: #1284078.
更多内容请看 online documentation。
XtraBackup 是一个用来备份 MySQL 的 InnoDB 数据库的开源工具。
例如执行增量备份的命令是：
# ./xtrabackup --backup --target-dir=/backup/delta --incremental-basedir=/backup/base
