Oracle Enterprise Manager快速重建

我们在使用Oracle时，可以利用Oracle自带的EM(Enterprise Manager)来更方便的管理我们的数据库。但是有时候我们的em却有时候无法连接，造成这个问题的原因有好多，例如没有正确的配置hostname,或者操作系统的防火墙问题等等。如果出现了问题，我们能否快速的重建em呢？答案是肯定的。我们可以通过Oracle官方文档来参照。但是如果我们对于em里面如此多的配置命令和选项比较头大的时候，你就可以参照此文来重新创建EM。

首先需要设置好环境变量ORACLE_HOSTNAME

export ORACLE_HOSTNAME=testbox.localdomain

然后再执行：

emca -config dbcontrol db -repos recreate

如果这个方法不行的话，你可以手动先drop掉你当前的repo

emca -deconfig dbcontrol db -repos drop

然后再重新创建

emca -config dbcontrol db -repos create

此间过程比较长，大概需要十分钟左右来创建。然后你就可以看到如下提示：

[oracle@testbox j2ee]$ emca -config dbcontrol db -repos create

STARTED EMCA at Jul ,  :: PM

EM Configuration Assistant, Version 11.2.0.3. Production

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

Enter the following information:

Database SID: erin

Listener ORACLE_HOME [ /u01/app/oracle/product/11.2./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):

-----------------------------------------------------------------

You have specified the following settings

Database ORACLE_HOME ................ /u01/app/oracle/product/11.2./db_1

Local hostname ................ testbox.localdomain

Listener ORACLE_HOME ................ /u01/app/oracle/product/11.2./db_1

Listener port number ................

Database SID ................ erin

Email address for notifications ...............

Outgoing Mail (SMTP) server for notifications ............... 

-----------------------------------------------------------------

Do you wish to continue? [yes(Y)/no(N)]: yes

Jul ,  :: PM oracle.sysman.emcp.EMConfig perform

INFO: This operation is being logged at /u01/app/oracle/cfgtoollogs/emca/erin/emca_2014_07_01_22_50_24.log.

Jul ,  :: PM oracle.sysman.emcp.EMReposConfig createRepository

INFO: Creating the EM repository (this may take a while) ...

Jul ,  :: PM oracle.sysman.emcp.EMReposConfig invoke

INFO: Repository successfully created

Jul ,  :: PM oracle.sysman.emcp.EMReposConfig uploadConfigDataToRepository

INFO: Uploading configuration data to EM repository (this may take a while) ...

Jul ,  :: PM oracle.sysman.emcp.EMReposConfig invoke

INFO: Uploaded configuration data successfully

Jul ,  :: PM oracle.sysman.emcp.util.DBControlUtil secureDBConsole

INFO: Securing Database Control (this may take a while) ...

Jul ,  :: PM oracle.sysman.emcp.util.DBControlUtil secureDBConsole

INFO: Database Control secured successfully.

Jul ,  :: PM oracle.sysman.emcp.util.DBControlUtil startOMS

INFO: Starting Database Control (this may take a while) ...

Jul ,  :: PM oracle.sysman.emcp.EMDBPostConfig performConfiguration

INFO: Database Control started successfully

Jul ,  :: PM oracle.sysman.emcp.EMDBPostConfig performConfiguration

INFO: >>>>>>>>>>> The Database Control URL is https://testbox.localdomain:5500/em <<<<<<<<<<<

Jul ,  :: 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./db_1/testbox.localdomain_erin/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 Jul ,  :: PM

标注的红色部分就是我们的em的访问地址。

巴特西

Oracle Enterprise Manager快速重建

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