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oracle dg 主、備切換SWITCHOVER 全過程記錄

發布時間：2020-07-23 15:55:26 來源：網絡 閱讀：456 作者：xingzhehxiang 欄目：關系型數據庫 
[oracle@oraclep trace]$ ifconfig 
enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.0.2.15  netmask 255.255.255.0  broadcast 10.0.2.255
        inet6 fe80::64d8:a56d:a1af:ef20  prefixlen 64  scopeid 0x20<link>
        ether 08:00:27:23:25:0d  txqueuelen 1000  (Ethernet)
        RX packets 313  bytes 25282 (24.6 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 475  bytes 37678 (36.7 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

enp0s8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.56.118  netmask 255.255.255.0  broadcast 192.168.56.255
        inet6 fe80::283a:c36b:b773:c4d8  prefixlen 64  scopeid 0x20<link>
        inet6 fe80::3765:e61f:d653:f584  prefixlen 64  scopeid 0x20<link>
        ether 08:00:27:ae:62:fc  txqueuelen 1000  (Ethernet)
        RX packets 992188  bytes 1473325892 (1.3 GiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 47580  bytes 30037450 (28.6 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 13897  bytes 1135717 (1.0 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 13897  bytes 1135717 (1.0 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[oracle@oraclep trace]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:39:43 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> select switchover_status,database_role from v$database;

SWITCHOVER_STATUS    DATABASE_ROLE
-------------------- ----------------
TO STANDBY           PRIMARY

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oraclep trace]$ ssh 192.168.56.117
oracle@192.168.56.117's password: 
Last login: Thu Jul  4 11:42:57 2019
[oracle@oracles ~]$ sqlplus  / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:45:47 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> select switchover_status,database_role from v$database;

SWITCHOVER_STATUS    DATABASE_ROLE
-------------------- ----------------
NOT ALLOWED          PHYSICAL STANDBY

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oracles ~]$ exit
登出
Connection to 192.168.56.117 closed.
[oracle@oraclep trace]$ sqlplus test/test

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:46:02 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> select * from test;

no rows selected

SQL> insert into test values(1,2);

1 row created.

SQL> commit;

Commit complete.

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oraclep trace]$ ssh 192.168.56.117
oracle@192.168.56.117's password: 
Last login: Thu Jul  4 13:45:34 2019 from 192.168.56.118
[oracle@oracles ~]$ sqlplus test/test    

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:46:57 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

ERROR:
ORA-01033: ORACLE initialization or shutdown in progress
Process ID: 0
Session ID: 0 Serial number: 0

Enter user-name: 
ERROR:
ORA-01017: invalid username/password; logon denied

Enter user-name: 
ERROR:
ORA-01017: invalid username/password; logon denied

SP2-0157: unable to CONNECT to ORACLE after 3 attempts, exiting SQL*Plus
[oracle@oracles ~]$ sqlplus  / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:47:15 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> alter database recover managed standby database cancel;

Database altered.

SQL> alter database open read only;

Database altered.

SQL> alter database recover managed standby database using current logfile disconnect from session;

Database altered.

SQL> select switchover_status,database_role from v$database;

SWITCHOVER_STATUS    DATABASE_ROLE
-------------------- ----------------
NOT ALLOWED          PHYSICAL STANDBY

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oracles ~]$ sqlplus test/test   

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:48:18 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> select * from test;

        ID       NUMS
---------- ----------
        1          2

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oracles ~]$ exit
登出
Connection to 192.168.56.117 closed.
[oracle@oraclep trace]$ sqlplus test/test 

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:48:31 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> insert into test values(1,3);

1 row created.

SQL> insert into test values(1,4);

1 row created.

SQL> insert into test values(1,5);

1 row created.

SQL> commit;

Commit complete.

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oraclep trace]$ ssh 192.168.56.117
oracle@192.168.56.117's password: 
Last login: Thu Jul  4 13:46:51 2019 from 192.168.56.118
[oracle@oracles ~]$ sqlplus test/test

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:48:59 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> select * from test;

        ID       NUMS
---------- ----------
        1          3
        1          4
        1          5
        1          2

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oracles ~]$ exit
登出
Connection to 192.168.56.117 closed.
[oracle@oraclep trace]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:52:31 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> SELECT OPEN_MODE,DATABASE_ROLE,SWITCHOVER_STATUS FROM V$DATABASE;

OPEN_MODE            DATABASE_ROLE    SWITCHOVER_STATUS
-------------------- ---------------- --------------------
READ WRITE           PRIMARY          TO STANDBY

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oraclep trace]$ ssh 192.168.56.117 
oracle@192.168.56.117's password: 
Last login: Thu Jul  4 13:48:55 2019 from 192.168.56.118
[oracle@oracles ~]$ sqlplus  / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:52:48 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> SELECT OPEN_MODE,DATABASE_ROLE,SWITCHOVER_STATUS FROM V$DATABASE;

OPEN_MODE            DATABASE_ROLE    SWITCHOVER_STATUS
-------------------- ---------------- --------------------
READ ONLY WITH APPLY PHYSICAL STANDBY NOT ALLOWED

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oracles ~]$ exit
登出
Connection to 192.168.56.117 closed.
[oracle@oraclep trace]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:53:05 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> SELECT OPEN_MODE,DATABASE_ROLE,SWITCHOVER_STATUS FROM V$DATABASE;

OPEN_MODE            DATABASE_ROLE    SWITCHOVER_STATUS
-------------------- ---------------- --------------------
READ WRITE           PRIMARY          TO STANDBY

SQL> ALTER DATABASE COMMIT TO SWITCHOVER TO PHYSICAL STANDBY WITH SESSION SHUTDOWN;

Database altered.

SQL> shutdown immdiate;
SP2-0717: illegal SHUTDOWN option
SQL> shutdown immdiate
SP2-0717: illegal SHUTDOWN option
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oraclep trace]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:54:09 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> STARTUP MOUNT;
ORA-01081: cannot start already-running ORACLE - shut it down first
SQL> shutdown immediate
ORA-01092: ORACLE instance terminated. Disconnection forced
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oraclep trace]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:54:40 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to an idle instance.

SQL> STARTUP MOUNT;
ORACLE instance started.

Total System Global Area  768294912 bytes
Fixed Size                  2232312 bytes
Variable Size             457179144 bytes
Database Buffers          306184192 bytes
Redo Buffers                2699264 bytes
Database mounted.
SQL> SELECT OPEN_MODE,SWITCHOVER_STATUS FROM V$DATABASE;

OPEN_MODE            SWITCHOVER_STATUS
-------------------- --------------------
MOUNTED              RECOVERY NEEDED

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oraclep trace]$ ssh 192.168.56.117 
oracle@192.168.56.117's password: 
Last login: Thu Jul  4 13:52:44 2019 from 192.168.56.118
[oracle@oracles ~]$ sqlplus  / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:55:14 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> SELECT OPEN_MODE,DATABASE_ROLE,SWITCHOVER_STATUS FROM V$DATABASE;

OPEN_MODE            DATABASE_ROLE    SWITCHOVER_STATUS
-------------------- ---------------- --------------------
READ ONLY WITH APPLY PHYSICAL STANDBY SESSIONS ACTIVE

SQL> ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY WITH SESSION SHUTDOWN;

Database altered.

SQL> ALTER DATABASE OPEN;

Database altered.

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oracles ~]$ sqlplus  / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:56:13 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION;
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION
*
ERROR at line 1:
ORA-01665: control file is not a standby control file

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oracles ~]$ exit
登出
Connection to 192.168.56.117 closed.
[oracle@oraclep trace]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:56:49 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> SELECT OPEN_MODE,DATABASE_ROLE,SWITCHOVER_STATUS FROM V$DATABASE;

OPEN_MODE            DATABASE_ROLE    SWITCHOVER_STATUS
-------------------- ---------------- --------------------
MOUNTED              PHYSICAL STANDBY RECOVERY NEEDED

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

Database altered.

SQL> archive log list;
Database log mode              Archive Mode
Automatic archival             Enabled
Archive destination            USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence     0
Next log sequence to archive   0
Current log sequence           0
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oraclep trace]$ ssh 192.168.56.117 
oracle@192.168.56.117's password: 
Last login: Thu Jul  4 13:55:11 2019 from 192.168.56.118
[oracle@oracles ~]$ sqlplus  / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:57:48 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> ALTER SYSTEM SWITCH LOGFILE;

System altered.

SQL> archive log list;
Database log mode              Archive Mode
Automatic archival             Enabled
Archive destination            USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence     43
Next log sequence to archive   45
Current log sequence           45
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oracles ~]$ exit
登出
Connection to 192.168.56.117 closed.
[oracle@oraclep trace]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:58:45 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> archive log list;
Database log mode              Archive Mode
Automatic archival             Enabled
Archive destination            USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence     44
Next log sequence to archive   0
Current log sequence           45
SQL>  alter database recover managed standby database cancel;

Database altered.

SQL> alter database open read only;

Database altered.

SQL> alter database recover managed standby database using current logfile disconnect from session;

Database altered.

SQL> SELECT OPEN_MODE,DATABASE_ROLE,SWITCHOVER_STATUS FROM V$DATABASE;

OPEN_MODE            DATABASE_ROLE    SWITCHOVER_STATUS
-------------------- ---------------- --------------------
READ ONLY WITH APPLY PHYSICAL STANDBY NOT ALLOWED

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oraclep trace]$ sqlplus test/test

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 14:00:07 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> select * from test;

        ID       NUMS
---------- ----------
        1          3
        1          4
        1          5
        1          2

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oraclep trace]$ ssh 192.168.56.117
oracle@192.168.56.117's password: 
Last login: Thu Jul  4 13:57:34 2019 from 192.168.56.118
[oracle@oracles ~]$ sqlplus test/test    

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 14:00:37 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> select * from test;

        ID       NUMS
---------- ----------
        1          3
        1          4
        1          5
        1          2

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oracles ~]$ sqlplus  / as sysdba   

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 14:01:15 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> SELECT OPEN_MODE,DATABASE_ROLE,SWITCHOVER_STATUS FROM V$DATABASE;

OPEN_MODE            DATABASE_ROLE    SWITCHOVER_STATUS
-------------------- ---------------- --------------------
READ WRITE           PRIMARY          TO STANDBY

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oracles ~]$ sqlplus test/test   

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 14:01:23 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> select * from test;

        ID       NUMS
---------- ----------
        1          3
        1          4
        1          5
        1          2

SQL> insert into test select * from test;

4 rows created.

SQL> commit;

Commit complete.

SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oracles ~]$ exit
登出
Connection to 192.168.56.117 closed.
[oracle@oraclep trace]$ sqlplus test/test 

SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 14:01:54 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> select * from test;

        ID       NUMS
---------- ----------
        1          3
        1          4
        1          5
        1          2
        1          3
        1          4
        1          5
        1          2

8 rows selected.
至此，Switchover切換完成！
總結：Switchover為主、備之間的正常切換，切換前要保證主、備庫的數據一致，而且要先主切備，后備切主，避免同時存在兩個主庫。
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