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oracle dg 主、备切换SWITCHOVER 全过程记录

发布时间:2021-01-20 08:38:46 所属栏目:百科 来源:网络整理
导读:[[email?protected] trace]$ ifconfig enp0s3: flags=4163UP,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 0x20link ether 08:00:27:23:25:0d

[[email?protected] 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,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 [[email?protected] 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$database; SWITCHOVER_STATUS DATABASE_ROLE -------------------- ---------------- TO STANDBY PRIMARY SQL> exit Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning,Data Mining and Real Application Testing options [[email?protected] trace]$ ssh 192.168.56.117 [email?protected]‘s password: Last login: Thu Jul 4 11:42:57 2019 [[email?protected] ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:45:47 2019 Copyright (c) 1982,database_role from v$database; SWITCHOVER_STATUS DATABASE_ROLE -------------------- ---------------- NOT ALLOWED PHYSICAL STANDBY SQL> exit Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning,Data Mining and Real Application Testing options [[email?protected] ~]$ exit 登出 Connection to 192.168.56.117 closed. [[email?protected] trace]$ sqlplus test/test SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:46:02 2019 Copyright (c) 1982,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,Data Mining and Real Application Testing options [[email?protected] trace]$ ssh 192.168.56.117 [email?protected]‘s password: Last login: Thu Jul 4 13:45:34 2019 from 192.168.56.118 [[email?protected] ~]$ sqlplus test/test SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:46:57 2019 Copyright (c) 1982,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 [[email?protected] ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:47:15 2019 Copyright (c) 1982,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,Data Mining and Real Application Testing options [[email?protected] ~]$ sqlplus test/test SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:48:18 2019 Copyright (c) 1982,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,Data Mining and Real Application Testing options [[email?protected] ~]$ exit 登出 Connection to 192.168.56.117 closed. [[email?protected] trace]$ sqlplus test/test SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:48:31 2019 Copyright (c) 1982,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,Data Mining and Real Application Testing options [[email?protected] trace]$ ssh 192.168.56.117 [email?protected]‘s password: Last login: Thu Jul 4 13:46:51 2019 from 192.168.56.118 [[email?protected] ~]$ sqlplus test/test SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:48:59 2019 Copyright (c) 1982,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,Data Mining and Real Application Testing options [[email?protected] ~]$ exit 登出 Connection to 192.168.56.117 closed. [[email?protected] trace]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:52:31 2019 Copyright (c) 1982,Data Mining and Real Application Testing options SQL> SELECT OPEN_MODE,DATABASE_ROLE,SWITCHOVER_STATUS FROM V$DATABASE; OPEN_MODE DATABASE_ROLE SWITCHOVER_STATUS -------------------- ---------------- -------------------- READ WRITE PRIMARY TO STANDBY SQL> exit Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning,Data Mining and Real Application Testing options [[email?protected] trace]$ ssh 192.168.56.117 [email?protected]‘s password: Last login: Thu Jul 4 13:48:55 2019 from 192.168.56.118 [[email?protected] ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:52:48 2019 Copyright (c) 1982,SWITCHOVER_STATUS FROM V$DATABASE; OPEN_MODE DATABASE_ROLE SWITCHOVER_STATUS -------------------- ---------------- -------------------- READ ONLY WITH APPLY PHYSICAL STANDBY NOT ALLOWED SQL> exit Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning,Data Mining and Real Application Testing options [[email?protected] ~]$ exit 登出 Connection to 192.168.56.117 closed. [[email?protected] trace]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:53:05 2019 Copyright (c) 1982,SWITCHOVER_STATUS FROM V$DATABASE; OPEN_MODE DATABASE_ROLE SWITCHOVER_STATUS -------------------- ---------------- -------------------- READ WRITE PRIMARY TO STANDBY SQL> ALTER DATABASE COMMIT TO SWITCHOVER TO PHYSICAL STANDBY WITH SESSION SHUTDOWN; Database altered. SQL> shutdown immdiate; SP2-0717: illegal SHUTDOWN option SQL> shutdown immdiate SP2-0717: illegal SHUTDOWN option SQL> exit Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning,Data Mining and Real Application Testing options [[email?protected] trace]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:54:09 2019 Copyright (c) 1982,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,Data Mining and Real Application Testing options [[email?protected] trace]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:54:40 2019 Copyright (c) 1982,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$DATABASE; OPEN_MODE SWITCHOVER_STATUS -------------------- -------------------- MOUNTED RECOVERY NEEDED SQL> exit Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning,Data Mining and Real Application Testing options [[email?protected] trace]$ ssh 192.168.56.117 [email?protected]‘s password: Last login: Thu Jul 4 13:52:44 2019 from 192.168.56.118 [[email?protected] ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:55:14 2019 Copyright (c) 1982,SWITCHOVER_STATUS FROM V$DATABASE; OPEN_MODE DATABASE_ROLE SWITCHOVER_STATUS -------------------- ---------------- -------------------- READ ONLY WITH APPLY PHYSICAL STANDBY SESSIONS ACTIVE SQL> ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY WITH SESSION SHUTDOWN; Database altered. SQL> ALTER DATABASE OPEN; Database altered. SQL> exit Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning,Data Mining and Real Application Testing options [[email?protected] ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:56:13 2019 Copyright (c) 1982,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,Data Mining and Real Application Testing options [[email?protected] ~]$ exit 登出 Connection to 192.168.56.117 closed. [[email?protected] trace]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:56:49 2019 Copyright (c) 1982,SWITCHOVER_STATUS FROM V$DATABASE; OPEN_MODE DATABASE_ROLE SWITCHOVER_STATUS -------------------- ---------------- -------------------- MOUNTED PHYSICAL STANDBY RECOVERY NEEDED SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION; Database altered. SQL> archive log list; Database log mode Archive Mode Automatic archival Enabled Archive destination USE_DB_RECOVERY_FILE_DEST Oldest online log sequence 0 Next log sequence to archive 0 Current log sequence 0 SQL> exit Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning,Data Mining and Real Application Testing options [[email?protected] trace]$ ssh 192.168.56.117 [email?protected]‘s password: Last login: Thu Jul 4 13:55:11 2019 from 192.168.56.118 [[email?protected] ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:57:48 2019 Copyright (c) 1982,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,Data Mining and Real Application Testing options [[email?protected] ~]$ exit 登出 Connection to 192.168.56.117 closed. [[email?protected] trace]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 13:58:45 2019 Copyright (c) 1982,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,Data Mining and Real Application Testing options [[email?protected] trace]$ sqlplus test/test SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 14:00:07 2019 Copyright (c) 1982,Data Mining and Real Application Testing options [[email?protected] trace]$ ssh 192.168.56.117 [email?protected]‘s password: Last login: Thu Jul 4 13:57:34 2019 from 192.168.56.118 [[email?protected] ~]$ sqlplus test/test SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 14:00:37 2019 Copyright (c) 1982,Data Mining and Real Application Testing options [[email?protected] ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 14:01:15 2019 Copyright (c) 1982,Data Mining and Real Application Testing options [[email?protected] ~]$ sqlplus test/test SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 14:01:23 2019 Copyright (c) 1982,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,Data Mining and Real Application Testing options [[email?protected] ~]$ exit 登出 Connection to 192.168.56.117 closed. [[email?protected] trace]$ sqlplus test/test SQL*Plus: Release 11.2.0.3.0 Production on Thu Jul 4 14:01:54 2019 Copyright (c) 1982,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切换完成! 总结:Switchover为主、备之间的正常切换,切换前要保证主、备库的数据一致,而且要先主切备,后备切主,避免同时存在两个主库。

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