oem 启动报错 OC4J Configuration issue. notfound

刚装好的oracle 11g rac启动失败，如下：
$ emctl start dbconsole
OC4J Configuration issue. /u01/app/oracle/product/11.2.0/db_1/oc4j/j2ee/OC4J_DBConsole_bjgedb02_bjgedb not found

系统HP-Unix 11i
oracle version 11.2.0

修复过程如下：
$ emca -config dbcontrol db

STARTED EMCA at Jun 10, 2015 4:04:47 PM
EM Configuration Assistant, Version 11.2.0.3.0 Production
Copyright (c) 2003, 2011, Oracle. All rights reserved.

Enter the following information:
Database SID: gedb
Jun 10, 2015 4:04:54 PM oracle.sysman.emcp.DatabaseChecks checkDbAvailabilityImpl
WARNING: ORA-01034: ORACLE not available

Jun 10, 2015 4:04:54 PM oracle.sysman.emcp.DatabaseChecks throwDBUnavailableException
SEVERE:
Database instance is unavailable. Fix the ORA error thrown and run EM Configuration Assistant again.

Some of the possible reasons may be :

1) Database may not be up.
2) Database is started setting environment variable ORACLE_HOME with trailing '/'. Reset ORACLE_HOME and bounce the database.

For eg. Database is started setting environment variable ORACLE_HOME=/scratch/db/ . Reset ORACLE_HOME=/scratch/db and bounce the database.

$ emca -config dbcontrol db

STARTED EMCA at Jun 10, 2015 4:05:05 PM
EM Configuration Assistant, Version 11.2.0.3.0 Production
Copyright (c) 2003, 2011, Oracle. All rights reserved.

Enter the following information:
Database SID: gedb1
Database Control is already configured for the database gedb1
You have chosen to configure Database Control for managing the database gedb1
This will remove the existing configuration and the default settings and perform a fresh configuration
Do you wish to continue? [yes(Y)/no(N)]: y
Listener ORACLE_HOME [ /u01/app/oracle/product/11.2.0/db_1 ]:
Password for SYS user:
Password for DBSNMP user:
Password for SYSMAN user:
Email address for notifications (optional):
Outgoing Mail (SMTP) server for notifications (optional):
ASM ORACLE_HOME [ /u01/app/oracle/product/11.2.0/db_1 ]: $ echo $ORACLE_HOME
Invalid ORACLE_HOME.
ASM ORACLE_HOME [ /u01/app/oracle/product/11.2.0/db_1 ]: /u01/app/11.2.0/grid
ASM SID [ +ASM ]:
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/db_1

Local hostname ................ bjgedb01
Listener ORACLE_HOME ................ /u01/app/oracle/product/11.2.0/db_1
Listener port number ................ 1521
Database SID ................ gedb1
Email address for notifications ...............
Outgoing Mail (SMTP) server for notifications ...............
ASM ORACLE_HOME ................ /u01/app/11.2.0/grid
ASM SID ................ +ASM
ASM port ................ 1521
ASM user role ................ SYSDBA
ASM username ................ ASMSNMP

-----------------------------------------------------------------
Do you wish to continue? [yes(Y)/no(N)]: y
Jun 10, 2015 4:06:35 PM oracle.sysman.emcp.EMConfig perform
INFO: This operation is being logged at /u01/app/oracle/cfgtoollogs/emca/gedb/emca_2015_06_10_16_05_04.log.
Jun 10, 2015 4:06:37 PM oracle.sysman.emcp.util.PortManager isPortInUse
WARNING: Specified port 5540 is already in use.
Jun 10, 2015 4:06:37 PM oracle.sysman.emcp.util.PortManager isPortInUse
WARNING: Specified port 5520 is already in use.
Jun 10, 2015 4:06:37 PM oracle.sysman.emcp.util.PortManager isPortInUse
WARNING: Specified port 1158 is already in use.
Jun 10, 2015 4:06:37 PM oracle.sysman.emcp.util.DBControlUtil stopOMS
INFO: Stopping Database Control (this may take a while) ...
Jun 10, 2015 4:06:55 PM oracle.sysman.emcp.EMReposConfig uploadConfigDataToRepository
INFO: Uploading configuration data to EM repository (this may take a while) ...
Jun 10, 2015 4:09:30 PM oracle.sysman.emcp.EMReposConfig invoke
INFO: Uploaded configuration data successfully
Jun 10, 2015 4:09:31 PM oracle.sysman.emcp.ParamsManager getLocalListener
WARNING: Error retrieving listener for bjgedb01
Jun 10, 2015 4:09:45 PM oracle.sysman.emcp.util.DBControlUtil secureDBConsole
INFO: Securing Database Control (this may take a while) ...
Jun 10, 2015 4:09:56 PM oracle.sysman.emcp.util.DBControlUtil secureDBConsole
INFO: Database Control secured successfully.
Jun 10, 2015 4:09:56 PM oracle.sysman.emcp.util.DBControlUtil startOMS
INFO: Starting Database Control (this may take a while) ...
Jun 10, 2015 4:10:34 PM oracle.sysman.emcp.EMDBPostConfig performConfiguration
INFO: Database Control started successfully
Jun 10, 2015 4:10:34 PM oracle.sysman.emcp.EMDBPostConfig performConfiguration
INFO: >>>>>>>>>>> The Database Control URL is https://bjgedb01:1158/em <<<<<<<<<<<
Jun 10, 2015 4:10:38 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/db_1/bjgedb01_gedb/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 10, 2015 4:10:38 PM
$
$
$ emctl start dbconsole
Oracle Enterprise Manager 11g Database Control Release 11.2.0.4.0
Copyright (c) 1996, 2013 Oracle Corporation. All rights reserved. https://bjgedb01:1158/em/console/aboutApplication - An instance of Oracle Enterprise Manager 11g Database Control is already running.