通过Oracle 逻辑DG 实现数据库滚动升级-Mysql Tutorial-php.cn

通过Oracle逻辑DG实现数据库滚动升级系统环境：操作系统：RedHatEL5Oracle：Oracle10gR2对于Oracle数据库的升级，一般需要长时间shutdowndatabase；升级的时间会

三、主备库Switchover

注意：对于升级完成的备库，以下参数不能修改（全部升级完成后再修改）

升级后的版本：

SQL> select * from v$version;

BANNER

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

Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Prod

PL/SQL Release 10.2.0.4.0 - Production

CORE 10.2.0.4.0 Production

TNS for Linux: Version 10.2.0.4.0 - Production

NLSRTL Version 10.2.0.4.0 - Production

如果修改后，在做switchover时会出现以下错误：

switchover 前准备：

查看主备库是否同步：

主库：

14:38:08 SYS@ test1>select count(*) from scott.emp1;

COUNT(*)

----------

Elapsed: 00:00:00.00

14:38:13 SYS@ test1>alter system switch logfile;

System altered.

Elapsed: 00:00:05.03

14:38:22 SYS@ test1>select name,database_role,protection_mode,switchover_status from v$database;

NAME DATABASE_ROLE PROTECTION_MODE SWITCHOVER_STATUS

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

TEST1 PRIMARY MAXIMUM PERFORMANCE TO STANDBY

Elapsed: 00:00:00.13

14:40:27 SYS@ test1>

备库：

SQL> alter database start logical standby apply immediate;

Database altered.

SQL> show parameter comp

NAME TYPE VALUE

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

compatible string 10.2.0

nls_comp string

plsql_compiler_flags string INTERPRETED, NON_DEBUG

plsql_v2_compatibility boolean FALSE

SQL> select count(*) from scott.emp1;

COUNT(*)

----------

SQL> /

COUNT(*)

----------

SQL> select name,database_role,protection_mode,switchover_status from v$database;

NAME DATABASE_ROLE PROTECTION_MODE SWITCHOVER_STATUS

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

SHDB LOGICAL STANDBY MAXIMUM PERFORMANCE NOT ALLOWED

备库切换前准备：

SQL> alter database prepare to switchover to primary;

Database altered.

SQL> select name,database_role,protection_mode,switchover_status from v$database;

NAME DATABASE_ROLE PROTECTION_MODE SWITCHOVER_STATUS

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

SHDB LOGICAL STANDBY MAXIMUM PERFORMANCE PREPARING SWITCHOVER

SQL>

主库切换前准备：

14:40:27 SYS@ test1>alter database prepare to switchover to logical standby;

Database altered.

Elapsed: 00:00:00.04

14:42:06 SYS@ test1>select name,database_role,protection_mode,switchover_status from v$database;

NAME DATABASE_ROLE PROTECTION_MODE SWITCHOVER_STATUS

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

TEST1 PRIMARY MAXIMUM PERFORMANCE PREPARING SWITCHOVER

Elapsed: 00:00:00.00

在备库做prepare switchover 后，主库状态：

14:42:11 SYS@ test1>/

NAME DATABASE_ROLE PROTECTION_MODE SWITCHOVER_STATUS

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

TEST1 PRIMARY MAXIMUM PERFORMANCE TO LOGICAL STANDBY

Elapsed: 00:00:00.01

14:43:38 SYS@ test1>

主库切换：

14:43:38 SYS@ test1>alter database commit to switchover to logical standby;

Database altered.

Elapsed: 00:00:31.50

14:45:01 SYS@ test1>

14:45:01 SYS@ test1>select name,database_role,protection_mode,switchover_status from v$database;

NAME DATABASE_ROLE PROTECTION_MODE SWITCHOVER_STATUS

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

TEST1 LOGICAL STANDBY MAXIMUM PERFORMANCE NOT ALLOWED

切换过程主库告警日志：

ALTER DATABASE COMMIT TO SWITCHOVER TO LOGICAL STANDBY (test1)

Tue Apr 15 14:44:30 2014

LOGSTDBY: Ensuring no active hot backups.

LOGSTDBY: Disabling job queue processes.

LOGSTDBY: Enabling database guard to prevent new transactions.

Tue Apr 15 14:44:30 2014

Waiting for transactions in flight at scn 0x0000.0004ebee to complete

LNS1 started with pid=16, OS id=3161

Tue Apr 15 14:44:37 2014

Thread 1 advanced to log sequence 69

Current log# 3 seq# 69 mem# 0: /u01/app/oracle/oradata/test1/redo03a.log

Tue Apr 15 14:44:37 2014

ARCH: LGWR is actively archiving destination LOG_ARCHIVE_DEST_2

ARCH: Standby redo logfile selected for thread 1 sequence 68 for destination LOG_ARCHIVE_DEST_2

Tue Apr 15 14:44:37 2014

LOGSTDBY: Waiting for pending archivals to dest [2].

Tue Apr 15 14:44:37 2014

LNS: Standby redo logfile selected for thread 1 sequence 69 for destination LOG_ARCHIVE_DEST_2

LNS1 started with pid=16, OS id=3163

Tue Apr 15 14:44:43 2014

ARCH: LGWR is actively archiving destination LOG_ARCHIVE_DEST_2

Tue Apr 15 14:44:43 2014

Thread 1 advanced to log sequence 70

Current log# 1 seq# 70 mem# 0: /u01/app/oracle/oradata/test1/redo01a.log

Tue Apr 15 14:44:43 2014

ARCH: Standby redo logfile selected for thread 1 sequence 69 for destination LOG_ARCHIVE_DEST_2

LOGSTDBY: Verifying receipt of EOR logfile on log archive destination [2].

Tue Apr 15 14:44:43 2014

LOGSTDBY: Verified EOR logfile archival to dest [2].

Tue Apr 15 14:44:44 2014

LNS: Standby redo logfile selected for thread 1 sequence 70 for destination LOG_ARCHIVE_DEST_2

Tue Apr 15 14:44:55 2014

Thread 1 cannot allocate new log, sequence 71

Checkpoint not complete

Current log# 1 seq# 70 mem# 0: /u01/app/oracle/oradata/test1/redo01a.log

LNS1 started with pid=16, OS id=3166

Tue Apr 15 14:45:01 2014

Shutting down archive processes

Tue Apr 15 14:45:01 2014

Thread 1 advanced to log sequence 71

Current log# 2 seq# 71 mem# 0: /u01/app/oracle/oradata/test1/redo02a.log

Tue Apr 15 14:45:01 2014

LOGSTDBY: Switchover complete (test1)

Tue Apr 15 14:45:01 2014

Completed: alter database commit to switchover to logical standby

Tue Apr 15 14:45:02 2014

LNS: Standby redo logfile selected for thread 1 sequence 71 for destination LOG_ARCHIVE_DEST_2

Tue Apr 15 14:45:06 2014

ARCH shutting down

ARC3: Archival stopped

备库切换过程告警日志：

RFS[1]: Possible network disconnect with primary database

Tue Apr 15 14:44:37 2014

Redo Shipping Client Connected as PUBLIC

-- Connected User is Valid

RFS[4]: Assigned to RFS process 3189

RFS[4]: Identified database type as 'logical standby'

Tue Apr 15 14:44:37 2014

RFS LogMiner: Client enabled and ready for notification

RFS[4]: Successfully opened standby log 5: '/u01/app/oracle/oradata/sh/std_redo05a.log'

Tue Apr 15 14:44:37 2014

RFS LogMiner: Client enabled and ready for notification

Tue Apr 15 14:44:37 2014

LOGMINER: Archived logfile found, transition to mining logfile: /u01/arch_sh1arch_1_68_797856158.log

Tue Apr 15 14:44:37 2014

RFS LogMiner: Registered logfile [/u01/arch_sh1arch_1_68_797856158.log] to LogMiner session id [21]

Tue Apr 15 14:44:37 2014

Redo Shipping Client Connected as PUBLIC

-- Connected User is Valid

RFS[5]: Assigned to RFS process 3191

RFS[5]: Identified database type as 'logical standby'

Tue Apr 15 14:44:37 2014

RFS LogMiner: Client enabled and ready for notification

RFS[5]: Successfully opened standby log 4: '/u01/app/oracle/oradata/sh/std_redo04a.log'

RFS[5]: Possible network disconnect with primary database

Tue Apr 15 14:44:37 2014

LOGMINER: End mining logfile: /u01/arch_sh1arch_1_68_797856158.log

Tue Apr 15 14:44:37 2014

LOGMINER: Log Auto Delete - deleting: /u01/arch_sh1arch_1_67_797856158.log

Deleted file /u01/arch_sh1arch_1_67_797856158.log

Tue Apr 15 14:44:43 2014

Redo Shipping Client Connected as PUBLIC

-- Connected User is Valid

RFS[6]: Assigned to RFS process 3193

RFS[6]: Identified database type as 'logical standby'

Tue Apr 15 14:44:43 2014

RFS LogMiner: Client enabled and ready for notification

RFS[6]: Successfully opened standby log 4: '/u01/app/oracle/oradata/sh/std_redo04a.log'

Tue Apr 15 14:44:43 2014

RFS LogMiner: Client enabled and ready for notification

Tue Apr 15 14:44:43 2014

LOGMINER: Begin mining logfile for session 21 thread 1 sequence 69, /u01/app/oracle/oradata/sh/std_redo04a.log

Tue Apr 15 14:44:43 2014

LOGMINER: End mining logfile: /u01/app/oracle/oradata/sh/std_redo04a.log

Tue Apr 15 14:44:43 2014

RFS LogMiner: Registered logfile [/u01/arch_sh1arch_1_69_797856158.log] to LogMiner session id [21]

Tue Apr 15 14:44:43 2014

LOGSTDBY: Shutdown acknowledged

LOGSTDBY Analyzer process P003 pid=27 OS id=3153 stopped

LOGSTDBY Apply process P004 pid=28 OS id=3155 stopped

LOGSTDBY Apply process P005 pid=29 OS id=3157 stopped

LOGSTDBY Apply process P006 pid=30 OS id=3159 stopped

LOGSTDBY Apply process P007 pid=31 OS id=3161 stopped

LOGSTDBY Apply process P008 pid=32 OS id=3163 stopped

Tue Apr 15 14:44:44 2014

LOGMINER: Log Auto Delete - deleting: /u01/arch_sh1arch_1_68_797856158.log

Deleted file /u01/arch_sh1arch_1_68_797856158.log

Tue Apr 15 14:44:44 2014

LOGSTDBY status: ORA-16257: Switchover initiated stop apply successfully completed

Tue Apr 15 14:44:44 2014

Redo Shipping Client Connected as PUBLIC

-- Connected User is Valid

RFS[7]: Assigned to RFS process 3195

RFS[7]: Identified database type as 'logical standby'

Primary database is in MAXIMUM PERFORMANCE mode

Tue Apr 15 14:44:44 2014

RFS LogMiner: Client enabled and ready for notification

Primary database is in MAXIMUM PERFORMANCE mode

RFS[7]: Successfully opened standby log 4: '/u01/app/oracle/oradata/sh/std_redo04a.log'

RFS[7]: Possible network disconnect with primary database

Redo Shipping Client Connected as PUBLIC

-- Connected User is Valid

RFS[8]: Assigned to RFS process 3197

RFS[8]: Identified database type as 'logical standby'

Primary database is in MAXIMUM PERFORMANCE mode

Tue Apr 15 14:45:02 2014

RFS LogMiner: Client enabled and ready for notification

Primary database is in MAXIMUM PERFORMANCE mode

RFS[8]: Successfully opened standby log 5: '/u01/app/oracle/oradata/sh/std_redo05a.log'

主库切换完成后，备库状态：

SQL> select name,database_role,protection_mode,switchover_status from v$database;

NAME DATABASE_ROLE PROTECTION_MODE SWITCHOVER_STATUS

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

SHDB LOGICAL STANDBY MAXIMUM PERFORMANCE PREPARING SWITCHOVER

SQL> /

NAME DATABASE_ROLE PROTECTION_MODE SWITCHOVER_STATUS

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

SHDB LOGICAL STANDBY MAXIMUM PERFORMANCE TO PRIMARY

SQL>

备库切换：

SQL> alter database commit to switchover to primary;

Database altered.

SQL> select name,database_role,protection_mode,switchover_status from v$database;

NAME DATABASE_ROLE PROTECTION_MODE SWITCHOVER_STATUS

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

SHDB PRIMARY MAXIMUM PERFORMANCE SESSIONS ACTIVE

SQL>

备库切换过程告警日志：

ALTER DATABASE SWITCHOVER TO PRIMARY (sh)

Tue Apr 15 14:48:31 2014

RFS LogMiner: Client enabled and ready for notification

Tue Apr 15 14:48:31 2014

LOGMINER: WARNING: registered partial log file /u01/arch_sh1arch_1_70_797856158.log

Tue Apr 15 14:48:31 2014

RFS LogMiner: Registered logfile [/u01/arch_sh1arch_1_70_797856158.log] to LogMiner session id [21]

LOGSTDBY Event: Starting SCN of new stream from seeded lockdown [0x0000.00071f8b]

LOGSTDBY Event: Successful close of the current log stream:

LOGSTDBY Event: primary: [1174898526]

LOGSTDBY Event: first scn: [0x0000.00046d38]

LOGSTDBY Event: end scn: [0x0000.0004ebf8]

LOGSTDBY Event: processed scn: [0x0000.0004ebf9]

LNS1 started with pid=20, OS id=3209

Tue Apr 15 14:48:34 2014

ARCH: LGWR is scheduled to archive destination LOG_ARCHIVE_DEST_2 after log switch

Tue Apr 15 14:48:34 2014

ARC0: STARTING ARCH PROCESSES

Tue Apr 15 14:48:34 2014

Thread 1 advanced to log sequence 30 (LGWR switch)

Current log# 3 seq# 30 mem# 0: /u01/app/oracle/oradata/sh/redo03a.log

Tue Apr 15 14:48:34 2014

ARC3: Archival started

ARC0: STARTING ARCH PROCESSES COMPLETE

ARC3 started with pid=20, OS id=3211

Tue Apr 15 14:49:24 2014

ARCH: Standby redo logfile selected for thread 1 sequence 29 for destination LOG_ARCHIVE_DEST_2

Completed: alter database commit to switchover to primary

Tue Apr 15 14:49:28 2014

Starting background process CJQ0

CJQ0 started with pid=23, OS id=3215

主库日志：

RFS[4]: Assigned to RFS process 3177

RFS[4]: Identified database type as 'logical standby'

Tue Apr 15 14:48:34 2014

RFS LogMiner: Client enabled and ready for notification

Tue Apr 15 14:49:24 2014

RFS[4]: Successfully opened standby log 4: '/u01/app/oracle/oradata/test1/std_redo04a.log'

Tue Apr 15 14:49:25 2014

RFS LogMiner: Client enabled and ready for notification

Tue Apr 15 14:49:29 2014

RFS LogMiner: Registered logfile [/disk1/arch_test1/arch_1_29_844857742.log] to LogMiner session id [21]

四、switchover 成功后，升级原主库：

原主库：

14:47:27 SYS@ test1>select name,database_role,protection_mode,switchover_status from v$database;

NAME DATABASE_ROLE PROTECTION_MODE SWITCHOVER_STATUS

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

TEST1 LOGICAL STANDBY MAXIMUM PERFORMANCE NOT ALLOWED

Elapsed: 00:00:00.00

数据库版本：

14:54:26 SYS@ test1>select * from v$version;

BANNER

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

Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod

PL/SQL Release 10.2.0.1.0 - Production

CORE 10.2.0.1.0 Production

TNS for Linux: Version 10.2.0.1.0 - Production

NLSRTL Version 10.2.0.1.0 - Production

原备库数据库版本：

SQL> select * from v$version;

BANNER

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

Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Prod

PL/SQL Release 10.2.0.4.0 - Production

CORE 10.2.0.4.0 Production

TNS for Linux: Version 10.2.0.4.0 - Production

NLSRTL Version 10.2.0.4.0 - Production

@原主库的升级，本案例就不在重复讲述，切换成功后，，滚动升级应该到此已成功！

本文出自 “天涯客的blog” 博客，请务必保留此出处

Php8, I'm coming too

Learn website layout in 30 minutes

Shangguan Oracle Beginner to Proficient Video Tutorial

Your first line of UNI-APP code

Flutter from scratch to app launch

Brother Lian New Linux Video Tutorial

AXURE 9 Video Tutorial (Suitable for Product Manager Interactive Product Design UI)

Zero Basic Proficiency PS Video Tutorial

16 day UI video tutorial to get you started

PS Techniques and Slicing Techniques Video Tutorial

Alibaba Cloud Environment Construction and Project Launch Video Tutorial

Overview of Computer Networks - Basic Knowledge that Programmers Must Master

Essential Tutorial for Programmers - HTTP Protocol Explanation

Websocket Video Tutorial

通过Oracle 逻辑DG 实现数据库滚动升级