ORACLE DG在线日志添加日志成员
SQL>select SEQUENCE#,first_time,next_time,APPLIED, THREAD# from v$archived_log order by SEQUENCE#,THREAD#;#记录日志应用的位置
SQL> select GROUP#,BYTES/1024/1024 from v$log;
SQL> select GROUP#,BYTES/1024/1024,STATUS from v$standby_log;
主库：
SQL> select * from v$logfile order by GROUP# ;
GROUP# STATUS TYPE MEMBER
---------- ------- ------- ---------------------------------------------------
1 ONLINE /data/app/oracle/oradata/BEIJING/redo01.log
2 ONLINE /data/app/oracle/oradata/BEIJING/redo02.log
3 ONLINE /data/app/oracle/oradata/BEIJING/redo03.log
4 STANDBY /data/app/oracle/oradata/BEIJING/standbyredo01.log
5 STANDBY /data/app/oracle/oradata/BEIJING/standbyredo02.log
6 STANDBY /data/app/oracle/oradata/BEIJING/standbyredo03.log
7 STANDBY /data/app/oracle/oradata/BEIJING/standbyredo04.log
7 rows selected.
备库:
SQL> select * from v$logfile order by GROUP# ;
GROUP# STATUS TYPE MEMBER
---------- ------- ------- ---------------------------------------------------
1 ONLINE /data/app/oracle/oradata/TIANJIN/redo01.log
2 ONLINE /data/app/oracle/oradata/TIANJIN/redo02.log
3 ONLINE /data/app/oracle/oradata/TIANJIN/redo03.log
4 STANDBY /data/app/oracle/oradata/TIANJIN/standbyredo01.log
5 STANDBY /data/app/oracle/oradata/TIANJIN/standbyredo02.log
6 STANDBY /data/app/oracle/oradata/TIANJIN/standbyredo03.log
7 STANDBY /data/app/oracle/oradata/TIANJIN/standbyredo04.log
7 rows selected.
1.备库添加standby log member
SQL>alter database recover managed standby database cancel;#取消APPLIED
alter database add standby logfile member '/data/app/oracle/oradata/TIANJIN/standbyredo01_2.log' to group 4;
alter database add standby logfile member '/data/app/oracle/oradata/TIANJIN/standbyredo02_2.log' to group 5;
alter database add standby logfile member '/data/app/oracle/oradata/TIANJIN/standbyredo03_2.log' to group 6;
alter database add standby logfile member '/data/app/oracle/oradata/TIANJIN/standbyredo04_2.log' to group 7;
2.主库添加standby log member
alter database add standby logfile member '/data/app/oracle/oradata/BEIJING/standbyredo01_2.log' to group 4;
alter database add standby logfile member '/data/app/oracle/oradata/BEIJING/standbyredo02_2.log' to group 5;
alter database add standby logfile member '/data/app/oracle/oradata/BEIJING/standbyredo03_2.log' to group 6;
alter database add standby logfile member '/data/app/oracle/oradata/BEIJING/standbyredo04_2.log' to group 7;
3.主库添加ONLINE redo log member
alter database add logfile member '/data/app/oracle/oradata/BEIJING/redo01_2.log' to group 1;
alter database add logfile member '/data/app/oracle/oradata/BEIJING/redo02_2.log' to group 2;
alter database add logfile member '/data/app/oracle/oradata/BEIJING/redo03_2.log' to group 3;
4.备库添加新的ONLINE redo log member
alter system set standby_file_management='MANUAL';
alter database add logfile member '/data/app/oracle/oradata/TIANJIN/redo01_2.log' to group 1;
alter database add logfile member '/data/app/oracle/oradata/TIANJIN/redo02_2.log' to group 2;
alter database add logfile member '/data/app/oracle/oradata/TIANJIN/redo03_2.log' to group 3;
5.在备库
修改standby_file_management模式
SQL> alter system set standby_file_management='AUTO';
System altered.
开启日志实时应用
SQL> alter database recover managed standby database disconnect from session;
Database altered.
SQL> select GROUP#,BYTES/1024/1024,STATUS from v$standby_log; group4日志的状态为ACTIVE
GROUP# BYTES/1024/1024 STATUS
---------- --------------- ----------
4 50 ACTIVE
5 50 UNASSIGNED
6 50 UNASSIGNED
7 50 UNASSIGNED
此时，alter日志信息，报313错误
Errors in file /data/app/oracle/diag/rdbms/TIANJIN/TIANJIN/trace/TIANJIN_pr00_6329.trc:
ORA-00313: open failed for members of log group 4 of thread 1
在主库切归档
SQL> alter system switch logfile;
System altered.
备库查询standby logfile状态
SQL> select * from v$logfile order by GROUP# ;
GROUP# STATUS TYPE MEMBER IS_ CON_ID
---------- ------- ------- ------------------------------------------------------------ --- ----------
1 ONLINE /data/app/oracle/oradata/TIANJIN/redo01.log NO 0
1 INVALID ONLINE /data/app/oracle/oradata/TIANJIN/redo01_2.log NO 0
2 INVALID ONLINE /data/app/oracle/oradata/TIANJIN/redo02_2.log NO 0
2 ONLINE /data/app/oracle/oradata/TIANJIN/redo02.log NO 0
3 INVALID ONLINE /data/app/oracle/oradata/TIANJIN/redo03_2.log NO 0
3 ONLINE /data/app/oracle/oradata/TIANJIN/redo03.log NO 0
4 STANDBY /data/app/oracle/oradata/TIANJIN/standbyredo01.log NO 0
4 STANDBY /data/app/oracle/oradata/TIANJIN/standbyredo01_2.log NO 0
5 STANDBY /data/app/oracle/oradata/TIANJIN/standbyredo02_2.log NO 0
5 STANDBY /data/app/oracle/oradata/TIANJIN/standbyredo02.log NO 0
6 INVALID STANDBY /data/app/oracle/oradata/TIANJIN/standbyredo03_2.log NO 0
GROUP# STATUS TYPE MEMBER IS_ CON_ID
---------- ------- ------- ------------------------------------------------------------ --- ----------
6 STANDBY /data/app/oracle/oradata/TIANJIN/standbyredo03.log NO 0
7 INVALID STANDBY /data/app/oracle/oradata/TIANJIN/standbyredo04_2.log NO 0
7 STANDBY /data/app/oracle/oradata/TIANJIN/standbyredo04.log NO 0
14 rows selected.
SQL> select GROUP#,BYTES/1024/1024,STATUS from v$standby_log;
GROUP# BYTES/1024/1024 STATUS
---------- --------------- ----------
4 50 UNASSIGNED
5 50 ACTIVE
6 50 UNASSIGNED
7 50 UNASSIGNED