ORACLE 11g RAC EM手动配置

ORACLE 11g RAC EM手动配置

前一段通过静默安装方式配置了一套11gr2 RAC，后面再配置EM时按照上面的步骤手动配置时却不成功，症状表现是EM配置完成后，登录页面，出现如下错误:

The 主机 CPU Chart could not be generated.

1.Error: Invalid BoundDataSource: no class, method or dataSource provided.

2.Check the log file for details.

The 活动会话数 Chart could not be generated.

1.Error: Invalid BoundDataSource: no class, method or dataSource provided.

2.Check the log file for details.

经过查找原因，发现根本原因是11g RAC在配置EM时，需要-cluster参数，如

$emca -deconfig dbcontrol db -repos drop -cluster

注意：以上命令清除RAC数据库旧配置信息，但是会使数据库进入静默模式，锁定所有用户，在生产环境是不允许的。于是分两步进行配置：(不会进入静默模式)

1）删除旧配置信息

emca−deconfigdbcontroldb节点1emca -deconfig dbcontrol db 节点2

sqlplus / as sysdba

SQL> drop user sysman cascade;

SQL> drop role MGMT_USER;

SQL> drop user MGMT_VIEW cascade;

SQL> drop public synonym MGMT_TARGET_BLACKOUTS;

SQL> drop public synonym SETEMVIEWUSERCONTEXT;

2）重新建立RAC数据库db control 配置信息

$emca -config dbcontrol db -repos create -cluster

配置过程中出现的问题：

 中间出现Error警告

WARNING: Error during db connection : ORA-12514: TNS:listener does not currently know of service requested in connect descriptor

可以无视

 ASMSNMP密码错误问题

[oracle@vm4 db_1]$ emca -config dbcontrol db -repos create -cluster

STARTED EMCA at Dec 22, 2016 5:18:40 PM

EM Configuration Assistant, Version 11.2.0.3.0 Production

Copyright (c) 2003, 2011, Oracle. All rights reserved.

Enter the following information:

Database unique name: racdb

Service name: racdb

Listener port number: 1521

Listener ORACLE_HOME [ /data/app/11.2.0/grid ]:

Password for SYS user:

Password for DBSNMP user:

Password for SYSMAN user:

Password for SYSMAN user: Cluster name: rac-cluster

Email address for notifications (optional):

Outgoing Mail (SMTP) server for notifications (optional):

ASM ORACLE_HOME [ /data/app/11.2.0/grid ]:

ASM port [ 1521 ]:

ASM username [ ASMSNMP ]:

ASM user password:

Dec 22
4000
, 2016 5:19:12 PM oracle.sysman.emcp.util.GeneralUtil initSQLEngineRemotely

WARNING: Error during db connection : ORA-12514: TNS:listener does not currently know of service requested in connect descriptor

Dec 22, 2016 5:19:17 PM oracle.sysman.emcp.util.GeneralUtil initSQLEngineRemotely

WARNING: ORA-01031: insufficient privileges

Dec 22, 2016 5:19:17 PM oracle.sysman.emcp.util.GeneralUtil initSQLEngineRemotely

WARNING: Error during db connection : ORA-12514: TNS:listener does not currently know of service requested in connect descriptor

Dec 22, 2016 5:19:22 PM oracle.sysman.emcp.util.GeneralUtil initSQLEngineRemotely

WARNING: ORA-01031: insufficient privileges

Password validation failed. Some of the possible reasons may be:

1) Invalid username/password.

2) Database is not up.

3) Scan listener not up.

4) Database service is not registered with scan listener.

5) Password file may be missing or configured incorrectly.

ASM user password:

解决方法

1) Remove all the ASM password files from each node:

rm Grid Oracle Home/dbs/orapw+ASM1

rm Grid Oracle Home/dbs/orapw+ASM2

rm Grid Oracle Home/dbs/orapw+ASM<..n>

2) Create ASM password file manually on the first node as the OS user which owns the Grid Infrastructure:

$> orapwd file=’orapw+ASM1’ entries=5 password=’here your password’

3) Copy the password file to all nodes with the correct ASM instance name:

scp orapw+ASM1 to remote node : Grid Oracle Home/dbs/orapw+ASM2

scp orapw+ASM1 to remote node : Grid Oracle Home/dbs/orapw+ASM3

..

scp orapw+ASM1 to remote node : Grid Oracle Home/dbs/orapw+ASM<..n>

4) Add the ASMSNMP user in ASM instance, and grant sysdba privilege to it:

SQL> create user asmsnmp identified by ‘password’;

SQL> grant sysdba to asmsnmp;

5) Verify the ASMSNMP user was created:

SQL> select * from v$pwfile_users;

USERNAME SYSDB SYSOP SYSAS

SYS TRUE TRUE TRUE

ASMSNMP TRUE FALSE FALSE

接下来建立成功，将HTTPS改为HTTP就行了

$emctl unsecure dbconsole

最终配置成功，EM页面图标显示正常了！

【参考】

1. ORACLE 11g EM 无法启动的问题和重建，http://blog.sina.com.cn/s/blog_7c855cf70100shrv.html

2. http://www.itpub.net/thread-1757162-1-1.html

3. Reconfigure Database Control in RAC environment using EMCA，http://www.oracle-class.com/?p=2424