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1.数据库环境。

Oracle Exadata Machine x4-2
Oracle RAC Database 11.2.0.4.6 for Linux x86_64bit
[root@dm01db01 ~]# uname -r
2.6.39-400.126.1.el5uek

2.使用EMCA创建EM。

[root@dm01db01 ~]# su - oracle
[oracle@dm01db01 ~]$ emca -config dbcontrol db  -repos create -cluster
......
ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
......
收到ORA-12514报错。

emca工具输出的日志被存放在$GRID_BASE/cfgtoollogs/emca目录下。

查看/u01/app/grid/cfgtoollogs/emca/emca_2014_06_18_10_26_50.log日志：
......
Jun 18, 2014 10:27:17 AM oracle.sysman.emcp.util.GeneralUtil initSQLEngineRemotely
CONFIG: SQLEngine connecting with Service Name: +ASM, oracleHome: /u01/app/11.2.0.4/grid, and user: ASMSNMP scan name: dm01-scan scan port: 1521
Jun 18, 2014 10:27:17 AM 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

Jun 18, 2014 10:27:17 AM oracle.sysman.emcp.util.GeneralUtil initSQLEngineRemotely
CONFIG: Waiting for 5 second before reconnection
Jun 18, 2014 10:27:22 AM oracle.sysman.emcp.util.GeneralUtil initSQLEngineRemotely
CONFIG: SQLEngine connecting with Service Name: +ASM, oracleHome: /u01/app/11.2.0.4/grid, and user: ASMSNMP host: dm01db02 port: 1521
Jun 18, 2014 10:27:22 AM oracle.sysman.emcp.util.GeneralUtil initSQLEngineRemotely
CONFIG: SQLEngine created successfully and connected
Jun 18, 2014 10:27:22 AM oracle.sysman.emcp.ParamsManager setParam
CONFIG: Setting param: CONFIRMATION ANSWER value:
Jun 18, 2014 10:27:28 AM oracle.sysman.emcp.ParamsManager setParam
CONFIG: Setting param: CONFIRMATION ANSWER value: no

    从最后面的日志可以看出，报ORA-12514错误的原因是不能通过SCAN LISTENER连接到ASM实例，说明ASM实例没有向SCAN LISTENER动态注册。

3.ASM实例向SCAN LISTENER动态注册。

[root@dm01db01 ~]# su - grid
[grid@dm01db01 ~]$ sqlplus / as sysasm

SQL*Plus: Release 11.2.0.4.0 Production on Wed Jun 18 23:18:09 2014

Copyright (c) 1982, 2013, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Real Application Clusters and Automatic Storage Management options

SQL> show parameter spfile

NAME                                 TYPE
------------------------------------ ---------------------------------
VALUE
------------------------------
spfile                               string
+DBFS_DG/cluster-clu1/asmparam
eterfile/registry.253.84996746
5
SQL> show parameter remote

NAME                                 TYPE
------------------------------------ ---------------------------------
VALUE
------------------------------
remote_listener                      string

remote_login_passwordfile            string
EXCLUSIVE
remote_os_authent                    boolean
FALSE
remote_os_roles                      boolean
FALSE
SQL> alter system set remote_listener='dm01-scan:1521';

System altered.

SQL> alter system register;

System altered.

SQL> show parameter remote_listener

NAME                                 TYPE
------------------------------------ ---------------------------------
VALUE
------------------------------
remote_listener                      string
dm01-scan:1521
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Real Application Clusters and Automatic Storage Management options
[grid@dm01db01 ~]$ lsnrctl status listener_scan1

LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 18-JUN-2014 23:19:09

Copyright (c) 1991, 2013, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER_SCAN1
Version                   TNSLSNR for Linux: Version 11.2.0.4.0 - Production
Start Date                17-JUN-2014 12:25:14
Uptime                    1 days 10 hr. 53 min. 55 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/app/11.2.0.4/grid/network/admin/listener.ora
Listener Log File         /u01/app/11.2.0.4/grid/log/diag/tnslsnr/dm01db01/listener_scan1/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER_SCAN1)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.0.3.16)(PORT=1521)))
Services Summary...
Service "+ASM" has 2 instance(s).
  Instance "+ASM1", status READY, has 1 handler(s) for this service...
  Instance "+ASM2", status READY, has 1 handler(s) for this service...
Service "tequdb" has 2 instance(s).
  Instance "tequdb1", status READY, has 1 handler(s) for this service...
  Instance "tequdb2", status READY, has 1 handler(s) for this service...
The command completed successfully

4.再次使用EMCA创建EM。

[root@dm01db01 ~]# su - oracle
[oracle@dm01db01 ~]$ emca -config dbcontrol db  -repos create -cluster

STARTED EMCA at Jun 18, 2014 11:19:44 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: tequdb
Service name: tequdb
Listener port number: 1521
Listener ORACLE_HOME [ /u01/app/11.2.0.4/grid ]: 
Password for SYS user:  
Password for DBSNMP user:  
Password for SYSMAN user:  
Cluster name: cluster-clu1
Email address for notifications (optional): 
Outgoing Mail (SMTP) server for notifications (optional): 
ASM ORACLE_HOME [ /u01/app/11.2.0.4/grid ]: 
ASM port [ 1521 ]: 
ASM username [ ASMSNMP ]: 
ASM user password:  
-----------------------------------------------------------------

You have specified the following settings

Database ORACLE_HOME ................ /u01/app/oracle/product/11.2.0.4/dbhome_1

Database instance hostname ................ Listener ORACLE_HOME ................ /u01/app/11.2.0.4/grid
Listener port number ................ 1521
Cluster name ................ cluster-clu1
Database unique name ................ tequdb
Email address for notifications ............... 
Outgoing Mail (SMTP) server for notifications ............... 
ASM ORACLE_HOME ................ /u01/app/11.2.0.4/grid
ASM port ................ 1521
ASM user role ................ SYSDBA
ASM username ................ ASMSNMP

-----------------------------------------------------------------
Do you wish to continue? [yes(Y)/no(N)]: y
Jun 18, 2014 11:20:26 PM oracle.sysman.emcp.EMConfig perform
INFO: This operation is being logged at /u01/app/oracle/cfgtoollogs/emca/tequdb/emca_2014_06_18_23_19_44.log.
Jun 18, 2014 11:20:40 PM oracle.sysman.emcp.EMReposConfig createRepository
INFO: Creating the EM repository (this may take a while) ...
Jun 18, 2014 11:20:40 PM oracle.sysman.emcp.EMReposConfig createRepository
WARNING: ORA-28003: password verification for the specified password failed
ORA-20006: Password too simple

Jun 18, 2014 11:20:40 PM oracle.sysman.emcp.EMReposConfig invoke
SEVERE: Error creating the repository
Jun 18, 2014 11:20:40 PM oracle.sysman.emcp.EMReposConfig invoke
INFO: Refer to the log file at /u01/app/oracle/cfgtoollogs/emca/tequdb/emca_repos_create_.log for more details.
Jun 18, 2014 11:20:40 PM oracle.sysman.emcp.EMConfig perform
SEVERE: Error creating the repository
Refer to the log file at /u01/app/oracle/cfgtoollogs/emca/tequdb/emca_2014_06_18_23_19_44.log for more details.
Could not complete the configuration. Refer to the log file at /u01/app/oracle/cfgtoollogs/emca/tequdb/emca_2014_06_18_23_19_44.log for more details.

这个告警参考如下MOS文章：

EMCA: RepManager Fails With Password Verification Error ORA-28003 (文档 ID 779098.1)
修改时间:2013-10-23类型:PROBLEM

In this Document

Symptoms

Cause

Solution

References

---

This document is being delivered to you via Oracle Support's Rapid Visibility (RaV) process and therefore has not been subject to an independent technical review.

APPLIES TO:

Enterprise Manager Base Platform - Version 10.2.0.1 to 10.2.0.5 [Release 10.2]
Information in this document applies to any platform.
Checked for relevance on 22-Oct-2013

SYMPTOMS

While using EMCA to create DB Console repository, this fails with:

CONFIG: ORA-28003: password verification for the specified password failed
ORA-20003: Password should contain at least one \

CAUSE

This is treated in internal BUG 4195090.

SOLUTION

a) Disable the Password verification
b) Create the Repository
c) Enable the password verification.

Note: For disabling the password verification function, Note 114930.1 can be used. For example:

SQL> alter profile default limit password_verify_function null;

5.禁用密码验证函数。

[root@dm01db01 ~]# su - oracle
[oracle@dm01db01 ~]$ sql

SQL*Plus: Release 11.2.0.4.0 Production on Wed Jun 18 23:29:28 2014

Copyright (c) 1982, 2013, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options

SQL> set linesize 200
SQL> set pagesize 200
SQL> select * from dba_profiles where profile='DEFAULT';

PROFILE                        RESOURCE_NAME                    RESOURCE LIMIT
------------------------------ -------------------------------- -------- ----------------------------------------
DEFAULT                        COMPOSITE_LIMIT                  KERNEL   UNLIMITED
DEFAULT                        SESSIONS_PER_USER                KERNEL   UNLIMITED
DEFAULT                        CPU_PER_SESSION                  KERNEL   UNLIMITED
DEFAULT                        CPU_PER_CALL                     KERNEL   UNLIMITED
DEFAULT                        LOGICAL_READS_PER_SESSION        KERNEL   UNLIMITED
DEFAULT                        LOGICAL_READS_PER_CALL           KERNEL   UNLIMITED
DEFAULT                        IDLE_TIME                        KERNEL   UNLIMITED
DEFAULT                        CONNECT_TIME                     KERNEL   UNLIMITED
DEFAULT                        PRIVATE_SGA                      KERNEL   UNLIMITED
DEFAULT                        FAILED_LOGIN_ATTEMPTS            PASSWORD 10
DEFAULT                        PASSWORD_LIFE_TIME               PASSWORD UNLIMITED
DEFAULT                        PASSWORD_REUSE_TIME              PASSWORD UNLIMITED
DEFAULT                        PASSWORD_REUSE_MAX               PASSWORD UNLIMITED
DEFAULT                        PASSWORD_VERIFY_FUNCTION         PASSWORD VERIFY_FUNCTION_11G
DEFAULT                        PASSWORD_LOCK_TIME               PASSWORD 1
DEFAULT                        PASSWORD_GRACE_TIME              PASSWORD 7

16 rows selected.

SQL> alter profile default limit password_verify_function null;

Profile altered.

6.使用EMCA创建EM。

[oracle@dm01db01 ~]$ emca -config dbcontrol db  -repos create -cluster

STARTED EMCA at Jun 18, 2014 11:30:26 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: tequdb
Service name: tequdb
Listener port number: 1521
Listener ORACLE_HOME [ /u01/app/11.2.0.4/grid ]: 
Password for SYS user:  
Password for DBSNMP user:  
Password for SYSMAN user:  
Cluster name: cluster-clu1
Email address for notifications (optional): 
Outgoing Mail (SMTP) server for notifications (optional): 
ASM ORACLE_HOME [ /u01/app/11.2.0.4/grid ]: 
ASM port [ 1521 ]: 
ASM username [ ASMSNMP ]: 
ASM user password:  
-----------------------------------------------------------------

You have specified the following settings

Database ORACLE_HOME ................ /u01/app/oracle/product/11.2.0.4/dbhome_1

Database instance hostname ................ Listener ORACLE_HOME ................ /u01/app/11.2.0.4/grid
Listener port number ................ 1521
Cluster name ................ cluster-clu1
Database unique name ................ tequdb
Email address for notifications ............... 
Outgoing Mail (SMTP) server for notifications ............... 
ASM ORACLE_HOME ................ /u01/app/11.2.0.4/grid
ASM port ................ 1521
ASM user role ................ SYSDBA
ASM username ................ ASMSNMP

-----------------------------------------------------------------
Do you wish to continue? [yes(Y)/no(N)]: y
Jun 18, 2014 11:31:01 PM oracle.sysman.emcp.EMConfig perform
INFO: This operation is being logged at /u01/app/oracle/cfgtoollogs/emca/tequdb/emca_2014_06_18_23_30_26.log.
Jun 18, 2014 11:31:14 PM oracle.sysman.emcp.EMReposConfig createRepository
INFO: Creating the EM repository (this may take a while) ...
Jun 18, 2014 11:33:54 PM oracle.sysman.emcp.EMReposConfig invoke
INFO: Repository successfully created
Jun 18, 2014 11:34:03 PM oracle.sysman.emcp.EMReposConfig uploadConfigDataToRepository
INFO: Uploading configuration data to EM repository (this may take a while) ...
Jun 18, 2014 11:34:50 PM oracle.sysman.emcp.EMReposConfig invoke
INFO: Uploaded configuration data successfully
Jun 18, 2014 11:34:50 PM oracle.sysman.emcp.EMDBCConfig instantiateOC4JConfigFiles
INFO: Propagating /u01/app/oracle/product/11.2.0.4/dbhome_1/oc4j/j2ee/OC4J_DBConsole_dm01db01_tequdb to remote nodes ...
Jun 18, 2014 11:34:52 PM oracle.sysman.emcp.EMDBCConfig instantiateOC4JConfigFiles
INFO: Propagating /u01/app/oracle/product/11.2.0.4/dbhome_1/oc4j/j2ee/OC4J_DBConsole_dm01db02_tequdb to remote nodes ...
Jun 18, 2014 11:34:54 PM oracle.sysman.emcp.EMAgentConfig deployStateDirs
INFO: Propagating /u01/app/oracle/product/11.2.0.4/dbhome_1/dm01db01_tequdb to remote nodes ...
Jun 18, 2014 11:34:55 PM oracle.sysman.emcp.EMAgentConfig deployStateDirs
INFO: Propagating /u01/app/oracle/product/11.2.0.4/dbhome_1/dm01db02_tequdb to remote nodes ...
Jun 18, 2014 11:34:58 PM oracle.sysman.emcp.util.DBControlUtil secureDBConsole
INFO: Securing Database Control (this may take a while) ...
Jun 18, 2014 11:35:39 PM oracle.sysman.emcp.util.DBControlUtil startOMS
INFO: Starting Database Control (this may take a while) ...
Jun 18, 2014 11:36:03 PM oracle.sysman.emcp.EMDBPostConfig performConfiguration
INFO: Database Control started successfully
Jun 18, 2014 11:36:03 PM oracle.sysman.emcp.EMDBPostConfig performConfiguration
INFO: >>>>>>>>>>> The Database Control URL is https://dm01db01.tequ.com:1158/em <<<<<<<<<<<
Jun 18, 2014 11:46:24 PM oracle.sysman.emcp.EMDBPostConfig showClusterDBCAgentMessage
INFO: 
****************  Current Configuration  ****************
 INSTANCE            NODE           DBCONTROL_UPLOAD_HOST
----------        ----------        ---------------------

tequdb            dm01db01            dm01db01.tequ.com
tequdb            dm01db02            dm01db01.tequ.com


Jun 18, 2014 11:46:24 PM oracle.sysman.emcp.EMDBPostConfig invoke
WARNING: 
************************  WARNING  ************************

Management Repository has been placed in secure mode wherein Enterprise Manager data will be encrypted.  The encryption key has been placed in the file: /u01/app/oracle/product/11.2.0.4/dbhome_1/dm01db01_tequdb/sysman/config/emkey.ora. Ensure this file is backed up as the encrypted data will become unusable if this file is lost. 

***********************************************************
Enterprise Manager configuration completed successfully
FINISHED EMCA at Jun 18, 2014 11:46:24 PM

成功创建EM。

7.重新启用密码验证函数。

SQL> alter profile default limit password_verify_function VERIFY_FUNCTION_11G;

Profile altered.

SQL> select * from dba_profiles;

PROFILE                        RESOURCE_NAME                    RESOURCE LIMIT
------------------------------ -------------------------------- -------- ----------------------------------------
DEFAULT                        COMPOSITE_LIMIT                  KERNEL   UNLIMITED
DEFAULT                        SESSIONS_PER_USER                KERNEL   UNLIMITED
DEFAULT                        CPU_PER_SESSION                  KERNEL   UNLIMITED
DEFAULT                        CPU_PER_CALL                     KERNEL   UNLIMITED
DEFAULT                        LOGICAL_READS_PER_SESSION        KERNEL   UNLIMITED
DEFAULT                        LOGICAL_READS_PER_CALL           KERNEL   UNLIMITED
DEFAULT                        IDLE_TIME                        KERNEL   UNLIMITED
DEFAULT                        CONNECT_TIME                     KERNEL   UNLIMITED
DEFAULT                        PRIVATE_SGA                      KERNEL   UNLIMITED
DEFAULT                        FAILED_LOGIN_ATTEMPTS            PASSWORD 10
DEFAULT                        PASSWORD_LIFE_TIME               PASSWORD UNLIMITED
DEFAULT                        PASSWORD_REUSE_TIME              PASSWORD UNLIMITED
DEFAULT                        PASSWORD_REUSE_MAX               PASSWORD UNLIMITED
DEFAULT                        PASSWORD_VERIFY_FUNCTION         PASSWORD VERIFY_FUNCTION_11G
DEFAULT                        PASSWORD_LOCK_TIME               PASSWORD 1
DEFAULT                        PASSWORD_GRACE_TIME              PASSWORD 7

16 rows selected.

配置完成后检查是否能够正常的登录EM工具，另外还有两点需要注意：
1).emca是用操作系统oracle用户执行的。
2).不能使用IP地址访问EM工具，一定使用机器名访问，例如：https://dm01db01.tequ.com:1158/em

感谢你能够认真阅读完这篇文章，希望小编分享的“Oracle 11gR2 RAC Database如何使用emca配置集群dbconsole”这篇文章对大家有帮助，同时也希望大家多多支持创新互联，关注创新互联行业资讯频道，更多相关知识等着你来学习!

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