环境：

Oracle 11g RAC和DG

关闭操作流程：

RAC节点：

关闭primary主机：

SQL>shutdown immediate

无法shutdown immediate

SQL> shutdown abort;

ORACLE instance shut down.

SQL> startup restrict;

ORACLE instance started.

SQL> shutdown

Database closed.

Database dismounted.

ORACLE instance shut down.

关闭standby主机：

SQL>alter database recover managed standby database cancel;

SQL>shutdown immediate

开启操作流程：

开启standby主机：

SQL> startup mount;

ORACLE instance started.

Total System Global Area 1.7103E+10 bytes

Fixed Size                  2245480 bytes

Variable Size            2181041304 bytes

Database Buffers         1.4898E+10 bytes

Redo Buffers               21708800 bytes

Database mounted.

SQL> select RECOVERY_MODE from v$archive_dest_status where rownum<5;

RECOVERY_MODE

-----------------------

IDLE

IDLE

IDLE

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION;

Database altered.

开启primary主机：

primary主机是RAC，会自动拉起来。

primary主机RAC一切正常。

发现standby主机监听不正常：

重启监听。

[oracle@dg ~]$ lsnrctl status

LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 11-DEC-2017 15:12:16

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))

TNS-12541: TNS:no listener

TNS-12560: TNS:protocol adapter error

TNS-00511: No listener

Linux Error: 111: Connection refused[oracle@dg ~]$ lsnrctl stop

LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 11-DEC-2017 15:12:37

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))

TNS-12541: TNS:no listener

TNS-12560: TNS:protocol adapter error

TNS-00511: No listener

Linux Error: 111: Connection refused

[oracle@dg ~]$ lsnrctl start

LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 11-DEC-2017 15:12:44

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

Starting /u01/app/oracle/product/11.2.0/db_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 11.2.0.3.0 - Production

Log messages written to /u01/app/oracle/diag/tnslsnr/dg/listener/alert/log.xml

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dg)(PORT=1521)))

Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))

STATUS of the LISTENER

------------------------

Alias                     LISTENER

Version                   TNSLSNR for Linux: Version 11.2.0.3.0 - Production

Start Date                11-DEC-2017 15:12:45

Uptime                    0 days 0 hr. 0 min. 0 sec

Trace Level               off

Security                  ON: Local OS Authentication

SNMP                      OFF

Listener Log File         /u01/app/oracle/diag/tnslsnr/dg/listener/alert/log.xml

Listening Endpoints Summary...

(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dg)(PORT=1521)))

The listener supports no services

The command completed successfully

[oracle@dg ~]$ lsnrctl status

LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 11-DEC-2017 15:13:29

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))

STATUS of the LISTENER

------------------------

Alias                     LISTENER

Version                   TNSLSNR for Linux: Version 11.2.0.3.0 - Production

Start Date                11-DEC-2017 15:12:45

Uptime                    0 days 0 hr. 0 min. 44 sec

Trace Level               off

Security                  ON: Local OS Authentication

SNMP                      OFF

Listener Log File         /u01/app/oracle/diag/tnslsnr/dg/listener/alert/log.xml

Listening Endpoints Summary...

(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dg)(PORT=1521)))

Services Summary...

Service "DG" has 1 instance(s).

Instance "DG", status READY, has 1 handler(s) for this service...

The command completed successfully

开启standby主机的只读功能：

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;

Database altered.

SQL> alter database open read only;

Database altered.

SQL> select RECOVERY_MODE from v$archive_dest_status where rownum<5;

RECOVERY_MODE

-----------------------

IDLE

IDLE

IDLE

IDLE

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION;

Database altered.

SQL> select RECOVERY_MODE from v$archive_dest_status where rownum<5;

RECOVERY_MODE

-----------------------

MANAGED REAL TIME APPLY

IDLE

IDLE

IDLE

主备的alert日志正常：

RAC01  alert日志:

Thread 1 advanced to log sequence 35614 (LGWR switch)

Current log# 2 seq# 35614 mem# 0: +DATA/prd/onlinelog/group_2.257.929893623

Mon Dec 11 15:50:16 2017

LNS: Standby redo logfile selected for thread 1 sequence 35614 for destination LOG_ARCHIVE_DEST_2

Mon Dec 11 15:50:16 2017

Archived Log entry 94045 added for thread 1 sequence 35613 ID 0x35485ff1 dest 1:

RAC02  alert日志:

Thread 2 advanced to log sequence 18461 (LGWR switch)

Current log# 3 seq# 18461 mem# 0: +DATA/prd/onlinelog/group_3.261.929893729

Mon Dec 11 15:32:10 2017

LNS: Standby redo logfile selected for thread 2 sequence 18461 for destination LOG_ARCHIVE_DEST_2

Mon Dec 11 15:32:11 2017

Archived Log entry 94043 added for thread 2 sequence 18460 ID 0x35485ff1 dest 1:

DG  alert日志:

Media Recovery Waiting for thread 2 sequence 18461 (in transit)

Recovery of Online Redo Log: Thread 2 Group 8 Seq 18461 Reading mem 0

Mem# 0: /oracle/oradata/standby08.log

Mon Dec 11 15:50:16 2017

RFS[4]: Selected log 6 for thread 1 sequence 35614 dbid 893924085 branch 929893623

Mon Dec 11 15:50:16 2017

Media Recovery Waiting for thread 1 sequence 35614 (in transit)

Recovery of Online Redo Log: Thread 1 Group 6 Seq 35614 Reading mem 0

Mem# 0: /oracle/oradata/standby06.log

Mon Dec 11 15:51:44 2017

Archived Log entry 40467 added for thread 1 sequence 35613 ID 0x35485ff1 dest 1:

如果通过重启监听无法解决DG节点的监听问题，可以通过动态注册监听来解决

alter system register