Managed Recovery Process has been stopped
备用数据库上的管理恢复进程（MRP）已停止。重做应用不再活跃，备库将落后。
SELECT process, status, sequence#, block# FROM v$managed_standby;SELECT thread#, low_sequence#, high_sequence# FROM v$archive_gap;SELECT MAX(sequence#) FROM v$archived_log WHERE applied = 'YES';