Oracle em启动失败经验分享

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1、启动方法：

启动监听 -- 启动数据库 -- 启动EM （需要提前设置 export ORACLE_UNQNAME=oracle）

Oracle为实例名，根据实际名字修改

2、 EM启动失败问题：

[oracle@redhat ~]$ emctl start dbconsole
OC4J Configuration issue. /u01/app/oracle/product/db_01/oc4j/j2ee/OC4J_DBConsole_redhat_oracle not found.

解决方法：

emca -repos recreate ---重新设置

[oracle@redhat ~]$ emca -repos recreate （时间可能会有点长）

STARTED EMCA at Mar 30, 2014 5:56:43 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: oracle
Listener port number: 1521
Password for SYS user:
Password for SYSMAN user:

Do you wish to continue? [yes(Y)/no(N)]: Y
Mar 30, 2014 5:57:01 AM oracle.sysman.emcp.EMConfig perform
INFO: This operation is being logged at /u01/app/oracle/cfgtoollogs/emca/oracle/emca_2014_03_30_05_56_43.log.
Mar 30, 2014 5:57:11 AM oracle.sysman.emcp.EMReposConfig invoke
INFO: Dropping the EM repository (this may take a while) ...

Mar 30, 2014 6:03:46 AM oracle.sysman.emcp.EMReposConfig invoke
INFO: Repository successfully dropped
Mar 30, 2014 6:03:47 AM oracle.sysman.emcp.EMReposConfig createRepository
INFO: Creating the EM repository (this may take a while) ...

Mar 30, 2014 6:14:23 AM oracle.sysman.emcp.EMReposConfig invoke
INFO: Repository successfully created
Enterprise Manager configuration completed successfully
FINISHED EMCA at Mar 30, 2014 6:14:23 AM

可能会失败，需要分析日志

Could not complete the configuration. Refer to the log file at /u01/app/oracle/cfgtoollogs/emca/oracle/emca_2014_03_30_05_54_05.log for more details.

我这边显示是密码问题，通过下面语句，讲密码改了就好了

alter user sysman identified by sysman;

3、 EM启动后，win7界面显示安全证书问题

解决方法：

在cmd下执行，然后重启IE即可
certutil -setreg chain\EnableWeakSignatureFlags 8

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