共计 4067 个字符，预计需要花费 11 分钟才能阅读完成。
这篇文章主要介绍了 oracle 11.2.0.4 DataGuard Broker 配置过程中可能遇到的问题有哪些，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让丸趣 TV 小编带着大家一起了解一下。
1、归档参数 log_archive_dest_2 设置不当导致的主备库告警日志警告
问题现象：
主库
Web Apr 11 14:17:16 2018
RFS[85]: Assigned to RFS proess 28893
RFS[85]: Database mount ID mismatch [0x59764e70:0x5976ad14](1500925552:1500949780)
RFS[85]: Client instance is standby database instead of primary
RFS[85]: Not using real application clusters
备库
Web Apr 11 14:12:16 2018
PING[ARC2]: Heartbeat failed to connect to standby dbprimary . Error is 16009.
处理办法 (MOS 文档 ID 1450132.1)：
备库执行
alter system set log_archive_dest_state_2=defer scope=both sid= *
或者
alter system set log_archive_dest_2= service=dbstandby arch sync valid_for=(online_logfiles,primary_role) db_unique_name=orcls scope=both sid= *
2、由于主备库数据文件路径不一致且未适当设置 db_file_name_convert 和 log_file_name_convert 参数导致 DDL 无法同步到备库
问题现象：
主库告警日志
ORA-01111：name for data file 5 is unknown – rename to correct file
ORA-01110: data file 5: /opt/oracle/product/11.2.0.4/db/dbs/UNNAMED00005
ora-01157: cannot identify/lock data file 5 – see DBWR trace file
ORA-01111: name for data file 5 is unknow – rename to correct file
ORA-01110: data file 5: /opt/oracle/product/11.2.0.4/db/dbs/UNNAMED00005
处理办法：
主备库检查 convert 参数
SQL show parameter convert
NAME TYPE VALUE
————– ———– ——————————————–
_convert_set_to_join bollean FALSE
db_file_name_convert string /opt/oracle/oradata/,/opt/oracle/oradata/
log_file_name_convert string /opt/oracle/oradata/,/opt/oracle/oradata/
DGMGRL 检查主备库 DG 映射参数
DGMGRL show configuration
Configuration – dgb_p
Protection Mode:Maxperformance
Databases:
orcl – Primary database
warning:ORA-16792: configurable property value is inconsistent with database setting
orcls – Physical standby database
warning:ORA-16792: configurable property value is inconsistent with database setting
Fast-Start Failover:DISABLED
DGMGRL show database ORCL
Database – orcl
Role: PRIMARY
Intended State:TRANSPORT-ON
Instance(s):
orcl
warning:ORA-16714:the value of property DbFileNameConvert is inconsistent with the database setting
Database Status:
WARNING
– 通过 verbose 参数查看具体的 DbFileNameConvert 参数值
show database VERBOSE ORCL
备库执行
alter
database recover managed standby database cancel;
alter database create datafile /opt/oracle/product/11.2.0.4/db/dbs/UNNAMED00005 as /opt/oracle/oradata/test01.dbf
备库重新启动日志应用进程
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION;
主备库的启动参数文件中加入，然后重新生成 spfile
*.db_file_name_convert= /opt/oracle/oradata , /opt/oracle/oradata
DGMGRL 控制台执行
DGMGRL edit database orcl set property DbFileNameConvert = /opt/oracle/oradata/,/opt/oracle/oradata/
3、oracle dg 配置时主备库的 db_unique_name 不能相同，否则备库无法添加而报错
问题现象：
DGMGRL 控制台添加备库时报错
DGMGRL add database orcls as connect identifier is dbstandby maintained as physical;
Error: ORA-16642: DB_UNIQUE_NAME mismatch.
处理办法：
修改备库启动 pfile 中的 db_unique_name（没有该参数则添加）值与主库中的 db_unique_name 值不同
重新生成 spfile，重启备库
4、通过 rman duplicate 主库到备机时 sys 用户无法通过 tns 服务名登录主备库
问题现象：
[oracle@centdgpri ~]$ tnsping dbprimary
TNS Ping Utility for Linux: Version 11.2.0.4.0 – Production on 16-APR-2018 00:35:27
Copyright (c) 1997, 2013, Oracle. All rights reserved.
Used parameter files:
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION= (ADDRESS_LIST= (ADDRESS=(PROTOCOL =TCP)(HOST=centdgpri)(PORT=1521))) (CONNECT_DATA=(SID=orcl)(SERVER=DEDICATED)))
OK (160 msec)
[oracle@centdgpri ~]$ sqlplus sys/WaterH2o@dbprimary as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Mon Apr 16 00:36:46 2018
Copyright (c) 1982, 2013, Oracle. All rights reserved.
ERROR:
ORA-01017: invalid username/password; logon denied
问题处理：
确认 sys 密码正确
如下 SQL 到主库查询无数据
SELECT * FROM V$PWFILE_USERS;
主库 oracle 用户执行如下命令，orapwd 的文件名字是 orapw$ORACLE_SID，路径是 $ORACLE_HOME/dbs 下，否则生成的文件无效
orapwd file=$ORACLE_HOME/dbs/orapw$ORACLE_SID password=WaterH2o entries=30 force=y
再次查询确认
5、oracle DG Broke 相关 ADG 特性使用中要求主备库打开闪回，而 oracle rman duplicate 克隆的备库没有自动打开闪回，
对备库打开闪回功能的时候需要注意
停止日志进程
recover managed standby database cancel;
创建闪回目录
mkdir -p /opt/oracle/flash_recovery_area
设置数据库闪回参数
alter system set db_recovery_file_dest_size=10g;
alter system set db_recovery_file_dest= /opt/oracle/flash_recovery_area
打开数据库闪回功能
alter database flashback on;
确认数据库闪回打开
select name,db_unique_name,flashback_on from v$database;
感谢你能够认真阅读完这篇文章，希望丸趣 TV 小编分享的“oracle 11.2.0.4 DataGuard Broker 配置过程中可能遇到的问题有哪些”这篇文章对大家有帮助，同时也希望大家多多支持丸趣 TV，关注丸趣 TV 行业资讯频道，更多相关知识等着你来学习!
