Oracle EM start failure--oracle_unqname not defined

Customer's server can't start em

Error environment variable oracle_unqname not defined. Please set Oracle_unqname to database unique name.

Need to do a better job

TNS, LSN configuration file hostname in the 1,oracle directory

The hostname in 2,linux/etc/hosts.

3,oracle user under. bash_profile or. BASHRC

Whether the hostname can be configured in the same place

The problem with me is that the user has changed hostname, and Oracle's. Bash_profile declares that the HOSTANME and the Oracle database are inconsistent so error, change consistent

source. Bash_profile can use

If you confirm that the hostname and SID instance names are not wrong

Then we recommend that you perform the EMC Rebuild operation

$ sqlplus/as SYSDBA
sql> alter user DBSNMP identified by py123456;
User altered.

sql> drop role Mgmt_user;
Role dropped.

sql> drop user Mgmt_view cascade;
User dropped.

sql> drop user Sysman cascade;
User dropped.

sql> drop user Sysman cascade;

sql> drop public synonym mgmt_target_blackouts;
Synonym dropped.

sql> drop public synonym setemviewusercontext;
Synonym dropped.
Sql>quit

$ emca-config Dbcontrol Db-repos Create

Create an action

STARTED EMCA at May 10:37:01 AM
EM Configuration Assistant, Version 11.2.0.3.0 Production
Copyright (c) 2003, Oracle. All rights reserved.

Enter the following information:
Database Sid:oracle11
Log4j:warn No Appenders could is found for logger (emsdk.config).
Log4j:warn Initialize the log4j system properly.
Listener Port number:
Listener Oracle_home []:
Password for SYS User:
Password for DBSNMP User:
Password for Sysman User:
Email address for notifications (optional):
Outgoing Mail (SMTP) server for notifications (optional):

Warning:ora-00955:name is already used a existing object---alarm This is the configuration is not clean

Use

$ emca-config Dbcontrol Db-repos recreate

Perform

Follow the steps

Finally, you can use EM

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Oracle EM start failed--oracle_unqname not defined