数据库：Oracle 11.2.0.4
系统：CentOS 7.9
问题描述：dgmgrl执行show configuration命令，出现以下ora-16525异常，如下所示：
DGMGRL> show configuration;
Error:
ORA-16525: the Data Guard broker is notyet available
Configuration details cannot be determinedby DGMGRL
查看告警日志：
[oracle@oel trace]$ catdrcorcl150.log (drcorcl150.log 在$ORACLE_BASE/rdbms/orcl150/orcl150/trace目录下)
....
05/27/2022 17:40:54
Data Guard Broker shutting down
RSM0 successfully terminated
05/27/2022 17:40:57
>> Data Guard Broker Has Been ShutDown <<
Fore Deregistering service ORCL150_DGBwith listener(s)
此处主备库的dg_broker_start均为false
SQL> show parameter dg_broker
NAME TYPE VALUE
----------------------------------------------- ------------------------------
dg_broker_config_file1 string /u01/app/oracle/product/11.2.0
/db_1/dbs/dr1ORCL150.dat
dg_broker_config_file2 string /u01/app/oracle/product/11.2.0
/db_1/dbs/dr2ORCL150.dat
dg_broker_start boolean FALSE
尝试将dg_broker_start设置为"true".
SQL> alter system setdg_broker_start=true;
System altered.
DGMGRL> show configuration;
Configuration - dg_conf
Protection Mode: MaxPerformance
Databases:
orcl150 - Primary database
orcl151 - Physical standby database
Fast-Start Failover: DISABLED
Configuration Status:
SUCCESS
结论：将主备库dg_broker_start修改为true，showconfiguration正常显示.
以下为日志信息：
[oracle@oel trace]$ cat drcorcl150.log
......
05/27/2022 17:40:54
Data Guard Broker shutting down
RSM0 successfully terminated
05/27/2022 17:40:57
>> Data Guard Broker Has Been ShutDown <<
Fore Deregistering service ORCL150_DGBwith listener(s)
05/28/2022 13:29:47
Creating Data Guard Broker Monitor Process(DMON)
05/28/2022 13:29:50
>> Starting Data Guard Brokerbootstrap <<
Broker Configuration File Locations:
dg_broker_config_file1 ="/u01/app/oracle/product/11.2.0/db_1/dbs/dr1ORCL150.dat"
dg_broker_config_file2 = "/u01/app/oracle/product/11.2.0/db_1/dbs/dr2ORCL150.dat"
05/28/2022 13:29:54
DMON Registering service ORCL150_DGB withlistener(s)
Broker Configuration: "dg_conf"
Protection Mode: Maximum Performance
Fast-Start Failover (FSFO): Disabled, flags=0x0, version=0
Primary Database: orcl150 (0x01010000)
Standby Database: orcl151, Enabled Physical Standby (0x02010000)
05/28/2022 13:29:58
Site orcl151 returned ORA-16525.
Version Check Results:
Database orcl151 returned ORA-16525
Creating process RSM0