查询数据库是否启用了force_logging su - oracle export ORACLE_SID=xxxx sqlplus “as sysdba select log_mode,force_logging from gv$database; 开启强制日志. 注: 尽量在业务低峰时开启 alter database force logging; 切换redo log, 每个节点都执行几次 alter system switch logfile ;