oracle 11.2.0.4 DataGuard Broker配置過程中可能遇到的問題有哪些

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這篇文章主要介紹了 oracle 11.2.0.4 DataGuard Broker 配置過程中可能遇到的問題有哪些，具有一定借鑒價(jià)值，感興趣的朋友可以參考下，希望大家閱讀完這篇文章之后大有收獲，下面讓丸趣 TV 小編帶著大家一起了解一下。

1、歸檔參數(shù) log_archive_dest_2 設(shè)置不當(dāng)導(dǎo)致的主備庫告警日志警告
問題現(xiàn)象：
主庫
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

備庫
Web Apr 11 14:12:16 2018
PING[ARC2]: Heartbeat failed to connect to standby dbprimary . Error is 16009.
處理辦法 (MOS 文檔 ID 1450132.1)：
備庫執(zhí)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、由于主備庫數(shù)據(jù)文件路徑不一致且未適當(dāng)設(shè)置 db_file_name_convert 和 log_file_name_convert 參數(shù)導(dǎo)致 DDL 無法同步到備庫
問題現(xiàn)象：
主庫告警日志
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

處理辦法：
主備庫檢查 convert 參數(shù)
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 檢查主備庫 DG 映射參數(shù)
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
– 通過 verbose 參數(shù)查看具體的 DbFileNameConvert 參數(shù)值
show database VERBOSE ORCL

備庫執(zhí)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

備庫重新啟動(dòng)日志應(yīng)用進(jìn)程
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION;

主備庫的啟動(dòng)參數(shù)文件中加入，然后重新生成 spfile
*.db_file_name_convert= /opt/oracle/oradata , /opt/oracle/oradata
DGMGRL 控制臺(tái)執(zhí)行
DGMGRL edit database orcl set property DbFileNameConvert = /opt/oracle/oradata/,/opt/oracle/oradata/

3、oracle dg 配置時(shí)主備庫的 db_unique_name 不能相同，否則備庫無法添加而報(bào)錯(cuò)
問題現(xiàn)象：
DGMGRL 控制臺(tái)添加備庫時(shí)報(bào)錯(cuò)
DGMGRL add database orcls as connect identifier is dbstandby maintained as physical;
Error: ORA-16642: DB_UNIQUE_NAME mismatch.

處理辦法：
修改備庫啟動(dòng) pfile 中的 db_unique_name（沒有該參數(shù)則添加）值與主庫中的 db_unique_name 值不同
重新生成 spfile，重啟備庫

4、通過 rman duplicate 主庫到備機(jī)時(shí) sys 用戶無法通過 tns 服務(wù)名登錄主備庫
問題現(xiàn)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

問題處理：
確認(rèn) sys 密碼正確
如下 SQL 到主庫查詢無數(shù)據(jù)
SELECT * FROM V$PWFILE_USERS;
主庫 oracle 用戶執(zhí)行如下命令，orapwd 的文件名字是 orapw$ORACLE_SID，路徑是 $ORACLE_HOME/dbs 下，否則生成的文件無效

orapwd file=$ORACLE_HOME/dbs/orapw$ORACLE_SID password=WaterH2o entries=30 force=y
再次查詢確認(rèn)

5、oracle DG Broke 相關(guān) ADG 特性使用中要求主備庫打開閃回，而 oracle rman duplicate 克隆的備庫沒有自動(dòng)打開閃回，
對(duì)備庫打開閃回功能的時(shí)候需要注意
停止日志進(jìn)程
recover managed standby database cancel;
創(chuàng)建閃回目錄
mkdir -p /opt/oracle/flash_recovery_area
設(shè)置數(shù)據(jù)庫閃回參數(shù)
alter system set db_recovery_file_dest_size=10g;
alter system set db_recovery_file_dest= /opt/oracle/flash_recovery_area
打開數(shù)據(jù)庫閃回功能
alter database flashback on;
確認(rèn)數(shù)據(jù)庫閃回打開
select name,db_unique_name,flashback_on from v$database;

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