oracle增量恢复解决备库GAP问题

Rolling forward a standby database using RMAN Incremental Backup.

模拟归档丢失的情况

一 主库操作：

查看当前归档

停用归档传输

alter system set log_archive_dest_state_2=defer;

切换归档

alter system switch logfile;

alter system switch logfile;

模拟丢失归档

RMAN> delete archivelog low sequence 3821 high sequence 3823;

RMAN> delete force archivelog low sequence 3821 high sequence 3823; ------11G需要添加force

恢复归档传输

alter system set log_archive_dest_state_2=enable;

备库警告日志错误

FAL[client]: Failed to request gap sequence

 GAP - thread 1 sequence 79-81

 DBID 21442453