EMCA创建em资料库时报错

说明：监听程序配置及启动正常。实例运行正常，远程或是本地sqlplus连接实例也正常。主机名显示正常，与主机名相关三个配置文件也没问题。

emca报错：

[oracle@rusky-oracle11g admin]$ emca -config dbcontrol db

STARTED EMCA at Apr 2, 2015 9:27:10 AM

EM Configuration Assistant, Version 11.2.0.0.2 Production

Copyright (c) 2003, 2005, Oracle. All rights reserved.

Enter the following information:

Database SID: orcl

log4j:ERROR No appenders could be found for category (emSDK.config).  （报错1）

log4j:ERROR Please initialize the log4j system properly.

Listener port number:

 ……

Do you wish to continue? [yes(Y)/no(N)]: yes
Apr 2, 2015 9:42:48 AM oracle.sysman.emcp.EMConfig perform
INFO: This operation is being logged at /u01/app/oracle/cfgtoollogs/emca/orcl/emca_2015_04_02_09_34_33.log.
Apr 2, 2015 9:42:49 AM oracle.sysman.emcp.EMConfig perform
SEVERE: Listener is not up or database service is not registered with it. Start the Listener and register database service and run EM Configuration Assistant again .
Refer to the log file at /u01/app/oracle/cfgtoollogs/emca/orcl/emca_2015_04_02_09_34_33.log for more details.
Could not complete the configuration. Refer to the log file at /u01/app/oracle/cfgtoollogs/emca/orcl/emca_2015_04_02_09_34_33.log for more details. （报错2）
[oracle@rusky-oracle11g admin]$

详细错误日志如下：

/u01/app/oracle/cfgtoollogs/emca/orcl/emca_2015_04_02_09_22_12.log

CONFIG: ORA-12545: Connect failed because target host or object does not exist

oracle.sysman.assistants.util.sqlEngine.SQLFatalErrorException: ORA-12545: Connect failed because target host or object does not exist

        at oracle.sysman.assistants.util.sqlEngine.SQLEngine.executeImpl(SQLEngine.java:1650)

        at oracle.sysman.assistants.util.sqlEngine.SQLEngine.executeSql(SQLEngine.java:1898)

        at oracle.sysman.emcp.ParamsManager.checkListenerStatusForDBControl(ParamsManager.java:3230)

        at oracle.sysman.emcp.EMReposConfig.unlockMGMTAccount(EMReposConfig.java:1000)

        at oracle.sysman.emcp.EMReposConfig.invoke(EMReposConfig.java:345)

        at oracle.sysman.emcp.EMReposConfig.invoke(EMReposConfig.java:157)

        at oracle.sysman.emcp.EMConfig.perform(EMConfig.java:253)

        at oracle.sysman.emcp.EMConfigAssistant.invokeEMCA(EMConfigAssistant.java:589)

        at oracle.sysman.emcp.EMConfigAssistant.performConfiguration(EMConfigAssistant.java:1448)

        at oracle.sysman.emcp.EMConfigAssistant.statusMain(EMConfigAssistant.java:573)

        at oracle.sysman.emcp.EMConfigAssistant.main(EMConfigAssistant.java:521)

Apr 2, 2015 9:22:30 AM oracle.sysman.emcp.EMConfig perform

SEVERE: Listener is not up or database service is not registered with it. Start the Listener and register database service and run EM Configuration Assistant again .

Refer to the log file at /u01/app/oracle/cfgtoollogs/emca/orcl/emca_2015_04_02_09_22_12.log for more details.

Apr 2, 2015 9:22:30 AM oracle.sysman.emcp.EMConfig perform

CONFIG: Stack Trace:

oracle.sysman.emcp.exception.EMConfigException: Listener is not up or database service is not registered with it. Start the Listener and register database service and run EM Configuration Assistant again .

        at oracle.sysman.emcp.ParamsManager.checkListenerStatusForDBControl(ParamsManager.java:3245)

        at oracle.sysman.emcp.EMReposConfig.unlockMGMTAccount(EMReposConfig.java:1000)

        at oracle.sysman.emcp.EMReposConfig.invoke(EMReposConfig.java:345)

        at oracle.sysman.emcp.EMReposConfig.invoke(EMReposConfig.java:157)

        at oracle.sysman.emcp.EMConfig.perform(EMConfig.java:253)

        at oracle.sysman.emcp.EMConfigAssistant.invokeEMCA(EMConfigAssistant.java:589)

        at oracle.sysman.emcp.EMConfigAssistant.performConfiguration(EMConfigAssistant.java:1448)

        at oracle.sysman.emcp.EMConfigAssistant.statusMain(EMConfigAssistant.java:573)

        at oracle.sysman.emcp.EMConfigAssistant.main(EMConfigAssistant.java:521)

Apr 2, 2015 9:22:30 AM oracle.sysman.emcp.EMConfig restoreOuiLoc

CONFIG: Restoring oracle.installer.oui_loc to /u01/app/oracle/product/11.2.0.1/db_1/oui

从错误日志可看出，应该是跟target host和listener相关。

解决办法：
[root@rusky-oracle11g ~]# cat /etc/hosts 该文件配置错误
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost --此处写错，原来为localhost.domain
192.168.1.203 rusky-oracle11g.com rusky-oracle11g

手动注册监听： SQL> conn sys/sys as sysdba Connected. SQL> alter system register; System altered

重新创建EMCA资料库：（未出现错误1）

[oracle@rusky-oracle11g admin]$ emca -config dbcontrol db

STARTED EMCA at Apr 2, 2015 9:34:33 AM

EM Configuration Assistant, Version 11.2.0.0.2 Production

Copyright (c) 2003, 2005, Oracle.  All rights reserved.

Enter the following information:

Database SID: 
……
出现错误2：

oracle.sysman.emcp.exception.EMConfigException: Listener is not up or database service is not registered with it. Start the Listener and register database service and run EM Configuration Assistant again .

        at oracle.sysman.emcp.ParamsManager.checkListenerStatusForDBControl(ParamsManager.java:3245)

        at oracle.sysman.emcp.EMReposConfig.unlockMGMTAccount(EMReposConfig.java:1000)

        at oracle.sysman.emcp.EMReposConfig.invoke(EMReposConfig.java:345)

        at oracle.sysman.emcp.EMReposConfig.invoke(EMReposConfig.java:157)

        at oracle.sysman.emcp.EMConfig.perform(EMConfig.java:253)

        at oracle.sysman.emcp.EMConfigAssistant.invokeEMCA(EMConfigAssistant.java:589)

        at oracle.sysman.emcp.EMConfigAssistant.performConfiguration(EMConfigAssistant.java:1448)

        at oracle.sysman.emcp.EMConfigAssistant.statusMain(EMConfigAssistant.java:573)

        at oracle.sysman.emcp.EMConfigAssistant.main(EMConfigAssistant.java:521)

Apr 2, 2015 9:22:30 AM oracle.sysman.emcp.EMConfig restoreOuiLoc

CONFIG: Restoring oracle.installer.oui_loc to /u01/app/oracle/product/11.2.0.1/db_1/oui

==================

各种折腾，还是报同样的错，后来也出现上面的错误1，因此可推断错误1跟/etc/hosts没关系。

在dbca下重新配置emca也报错:

使用命令再次创建时也报错：

Refer to the log file at /u01/app/oracle/cfgtoollogs/emca/orcl/emca_2015_04_02_09_22_12.log for more details.根据上多次出现的该提示，找到文件中的如下错误：

No value was set for the parameter ORACLE_HOME.

ORA-12545:connect failed because target host or object does not exist.

每次都提示错误目标主机ORACLE_HOSTNAEM, rusky-oel.com不正确或不存在。我配置的正确的主机名为rusky-oracle11g.com。

/home/oracle/.bash_profile 最后发现该文件内ORACLE_HOSTNAME配置有错，修改为正确的rusky-oracle11g.com后，重新配置emca正常。

ORACLE_HOSTNAME=rusky-oel.com; export ORACLE_HOSTNAME

好坑爹的错误，折腾了两天。

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