基于windows环境Oracle主备切换之后OGG同步进程恢复

场景：db1是主库，db2是备库，ogg从db2备库抽取数据同步到目标数据库
db1 - db2(ADG) – ogg – targetdb

场景：db2是主库，db1是备库，ogg从db1备库抽取数据同步到目标数据库
db2 - db1(ADG) – ogg – targetdb

主备库切换完成之后抽取进程报错如下：

2025-05-15 14:28:41  INFO    OGG-06604  Database ORCL CPU info: CPU Count 8, CPU Core Count 8, CPU Socket Count 4.Source Context :SourceModule            : [er.redo.ora]SourceID                : [/scratch/aime/adestore/views/aime_adc00jza/oggcore/OpenSys/src/app/er/redo/oracle/redoora.c]SourceMethod            : [ce_validate_config]SourceLine              : [6302]ThreadBacktrace         : [14] elements: [_ZN3ggs5gglib14MultiThreading6Thread9RunThreadEPNS2_10ThreadArgsE]: [/OSdata/ogg123_oracle/extract(_ZN3ggs5gglib14MultiThreading6Thread9RunThreadEPNS2_10ThreadArgsE+0x14c) [0x83e1bc]]: [/OSdata/ogg123_oracle/extract(_ZN3ggs5gglib14MultiThreading6Thread9RunThreadEPNS2_10ThreadArgsE+0x14c) [0x83e1bc]]: [/OSdata/ogg123_oracle/extract()]: [_ZN3ggs5gglib14MultiThreading6Thread9RunThreadEPNS2_10ThreadArgsE]: [/OSdata/ogg123_oracle/extract(ggs::gglib::MultiThreading::MainThread::Run(int, char**))]: [/OSdata/ogg123_oracle/extract(ggs::gglib::MultiThreading::MainThread::Run(int, char**))]: [/OSdata/ogg123_oracle/extract()]: [/OSdata/ogg123_oracle/extract(ggs::gglib::MultiThreading::MainThread::Run(int, char**))]: [  : [/OSdata/ogg123_oracle/extraextras::gglib::MultiThreading::Mng::Mng::MnRunMnRun char**))]
]: [/OSdata/ogg123_oracle/extract(ggs::gglib::MultiThreading::MainThread::Run(int, char**))]: [/lib64/libc.so.6(__libc_start_main)]: [/lib64/libc.so.6(__libc_start_main)]: [/OSdata/ogg123_oracle/extract()]2025-05-15 14:28:41  ERROR   OGG-02801  Parameter MINEFROMACTIVEDG can only be used when the database is in READ ONLY mode.2025-05-15 14:28:41  ERROR   OGG-01668  PROCESS ABENDING.

GGSCI (oggser as ggs@orcl) 6> dblogin useridalias s_source2120
ERROR: OCI Error ORA (status = 1033-ORA-01033: ORACLE 正在初始化或关闭
Process ID: 0
Session ID: 0 Serial number: 0
).

把新的备库切换到只读状态

SQL> select open_mode from v$database;OPEN_MODE
--------------------
MOUNTEDSQL> recover managed standby database cancel;
完成介质恢复。
SQL> alter database open read only;数据库已更改。SQL> alter database recover managed standby database using current logfile disconnect from session;数据库已更改。SQL>
SQL> select sequence#,status,process from v$managed_standby;SEQUENCE# STATUS       PROCESS
---------- ------------ ---------0 CONNECTED    ARCH0 CONNECTED    ARCH100 CLOSING      ARCH101 CLOSING      ARCH102 APPLYING_LOG MRP00 IDLE         RFS0 IDLE         RFS102 IDLE         RFS已选择8行。SQL>

GGSCI (oggser) 7> dblogin useridalias s_source2120
Successfully logged into database.

GGSCI (oggseras ggs@orcl) 8> info allProgram     Status      Group       Lag at Chkpt  Time Since ChkptMANAGER     RUNNING                                           
EXTRACT     ABENDED     EXTEP       00:00:00      00:10:11    
REPLICAT    RUNNING     REPE        00:00:00      00:00:07    

修改读取连接到新的备库

GGSCI (oggser as ggs@orcl) 17> view param extepextract extep
--useridalias s_source
useridalias s_source2120
exttrail ./dirdat/ep
warnlongtrans 3h, checkinterval 10m
tranlogoptions logretention enabled
tranlogoptions dblogreader
tranlogoptions minefromactivedg
--tables
table scims.tscim;

重启抽取进程

GGSCI (oggser as ggs@orcl) 13> start extepSending START request to MANAGER ...
EXTRACT EXTEP startingGGSCI (oggser as ggs@orcl) 14> info allProgram     Status      Group       Lag at Chkpt  Time Since ChkptMANAGER     RUNNING                                           
EXTRACT     STARTING    EXTEP       00:00:00      00:16:16    
REPLICAT    RUNNING     REPE        00:00:00      00:00:07    GGSCI (oggser as ggs@orcl) 15> info allProgram     Status      Group       Lag at Chkpt  Time Since ChkptMANAGER     RUNNING                                           
EXTRACT     RUNNING     EXTEP       00:00:00      00:00:00    
REPLICAT    RUNNING     REPE        00:00:00      00:00:10    

最后测试验证数据同步正常。