linux系统里ORACLE服务器更改主机名后，对数据库的影响-白红宇

linux系统里ORACLE服务器更改主机名后，对数据库的影响

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发布时间：2019-06-18

本文共 25075 字，大约阅读时间需要 83 分钟。

Linux下主机名的修改对oracle监听及EM的影响及恢复

一．修改主机名及恢复监听

修改主机名分为动态和静态，动态是指不需要重启就能更改，但是重启无法保存，静态的意思需要修改配置文件，重启会被保存

1. 动态修改对监听的影响

查看当前的hostname

[root@localhost ~]# hostname

localhost.localdomain

[root@localhost ~]# hostname oracle

[root@localhost ~]# su –

查看network的hostname

[root@oracle ~]# vi /etc/sysconfig/network

NETWORKING=yes

NETWORKING_IPV6=no

HOSTNAME=localhost.localdomain

查看hosts

[root@oracle ~]# vi /etc/hosts

# Do not remove the following line, or various programs

# that require network functionality will fail.

127.0.0.1 localhost.localdomain localhost

::1 localhost6.localdomain6 localhost6

先去启动一下监听看一下有什么变化

[root@oracle ~]# su - oracle

[oracle@oracle ~]$

[oracle@oracle~]$cd/u01/app/oracle/product/10.2.0/dbhome_1/network/admin/

[oracle@oracle admin]$ pwd

/u01/app/oracle/product/10.2.0/dbhome_1/network/admin

[oracle@oracle admin]$ ls

listener.ora samples shrept.lst sqlnet.ora tnsnames.ora

[oracle@oracle admin]$ vi listener.ora

# listener.ora Network Configuration File: /u01/app/oracle/product/10.2.0/dbhome_1/network/admin/listener.ora

# Generated by Oracle configuration tools.

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(SID_NAME = PLSExtProc)

(ORACLE_HOME = /u01/app/oracle/product/10.2.0/dbhome_1)

(PROGRAM = extproc)

)

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))

(ADDRESS = (PROTOCOL = TCP)(HOST = localhost.localdomain)(PORT = 1521))

)

"listener.ora" 20L, 525C

[oracle@oracle ~]$ lsnrctl start

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 26-FEB-2011 01:23:16

Starting /u01/app/oracle/product/10.2.0/dbhome_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 10.2.0.1.0 - Production

System parameter file is /u01/app/oracle/product/10.2.0/dbhome_1/network/admin/listener.ora

Log messages written to /u01/app/oracle/product/10.2.0/dbhome_1/network/log/listener.log

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))

STATUS of the LISTENER

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

Alias LISTENER

Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production

Start Date 26-FEB-2011 01:23:17

Uptime 0 days 0 hr. 0 min. 0 sec

Trace Level off

Security ON: Local OS Authentication

SNMP OFF

Listener Parameter File /u01/app/oracle/product/10.2.0/dbhome_1/network/admin/listener.ora

Listener Log File /u01/app/oracle/product/10.2.0/dbhome_1/network/log/listener.log

Listening Endpoints Summary...

(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))

(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))

Services Summary...

Service "PLSExtProc" has 1 instance(s).

Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...

The command completed successfully

监听状态host=127.0.0.1 变成了ip，hostname没有改变前启动监听

Host= localhost.localdomain

现在启动一下EM，看看可以不可以启动

[oracle@oracle admin]$ emctl start dbconsole

TZ set to US/Pacific

Exception in getting local host

java.net.UnknownHostException: oracle: oracle

at java.net.InetAddress.getLocalHost(InetAddress.java:1191)

at oracle.sysman.emSDK.conf.TargetInstaller.getLocalHost(TargetInstaller.java:4977)

at oracle.sysman.emSDK.conf.TargetInstaller.main(TargetInstaller.java:3758)

Exception in getting local host

java.net.UnknownHostException: oracle: oracle

at java.net.InetAddress.getLocalHost(InetAddress.java:1191)

at oracle.sysman.emSDK.conf.TargetInstaller.getLocalHost(TargetInstaller.java:4977)

at oracle.sysman.emSDK.conf.TargetInstaller.main(TargetInstaller.java:3758)

OC4J Configuration issue. /u01/app/oracle/product/10.2.0/dbhome_1/oc4j/j2ee/OC4J_DBConsole_null_orcl not found.

改了hostname EM已经无法启动

重启一下linux看看启动监听和EM看看是什么效果

[oracle@nag_oracle ~]$ su -

Password:

[root@nag_oracle ~]#init 6

[oracle@localhost ~]$ lsnrctl start

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 26-FEB-2011 01:48:03

Starting /u01/app/oracle/product/10.2.0/dbhome_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 10.2.0.1.0 - Production

System parameter file is /u01/app/oracle/product/10.2.0/dbhome_1/network/admin/listener.ora

Log messages written to /u01/app/oracle/product/10.2.0/dbhome_1/network/log/listener.log

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost.localdomain)(PORT=1521)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))

STATUS of the LISTENER

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

Alias LISTENER

Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production

Start Date 26-FEB-2011 01:48:06

Uptime 0 days 0 hr. 0 min. 0 sec

Trace Level off

Security ON: Local OS Authentication

SNMP OFF

Listener Parameter File /u01/app/oracle/product/10.2.0/dbhome_1/network/admin/listener.ora

Listener Log File /u01/app/oracle/product/10.2.0/dbhome_1/network/log/listener.log

Listening Endpoints Summary...

(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))

(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost.localdomain)(PORT=1521)))

Services Summary...

Service "PLSExtProc" has 1 instance(s).

Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...

The command completed successfully

[oracle@localhost ~]$ emctl start dbconsole

TZ set to US/Pacific

Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0

http://localhost.localdomain:1158/em/console/aboutApplication

Starting Oracle Enterprise Manager 10g Database Control ....................... started.

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

Logs are generated in directory /u01/app/oracle/product/10.2.0/dbhome_1/localhost.localdomain_orcl/sysman/log

总结：使用hostname命令改变主机名，监听是可以启动的，EM无法启动，重启就恢复了。

2. 静态改变主机名

我们要对比一下改network里的hostname和hosts里对应关系有什么影响

A.我们先改一下network里的hostname

[oracle@localhost ~]$ vi /etc/sysconfig/network

[oracle@localhost ~]$ su -

Password:

[root@localhost ~]# vi /etc/sysconfig/network

将hostname改成oracle

NETWORKING=yes

NETWORKING_IPV6=no

HOSTNAME=oracle

需要重启才能改过来

[oracle@oracle ~]$

那么我们启动监听

[oracle@oracle ~]$ lsnrctl start

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 26-FEB-2011 02:05:47

Starting /u01/app/oracle/product/10.2.0/dbhome_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 10.2.0.1.0 - Production

System parameter file is /u01/app/oracle/product/10.2.0/dbhome_1/network/admin/listener.ora

Log messages written to /u01/app/oracle/product/10.2.0/dbhome_1/network/log/listener.log

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))

STATUS of the LISTENER

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

Alias LISTENER

Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production

Start Date 26-FEB-2011 02:05:49

Uptime 0 days 0 hr. 0 min. 0 sec

Trace Level off

Security ON: Local OS Authentication

SNMP OFF

Listener Parameter File /u01/app/oracle/product/10.2.0/dbhome_1/network/admin/listener.ora

Listener Log File /u01/app/oracle/product/10.2.0/dbhome_1/network/log/listener.log

Listening Endpoints Summary...

(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))

(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))

Services Summary...

Service "PLSExtProc" has 1 instance(s).

Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...

The command completed successfully

启动EM

[oracle@oracle ~]$ emctl start dbconsole

TZ set to US/Pacific

Exception in getting local host

java.net.UnknownHostException: oracle: oracle

at java.net.InetAddress.getLocalHost(InetAddress.java:1191)

at oracle.sysman.emSDK.conf.TargetInstaller.getLocalHost(TargetInstaller.java:4977)

at oracle.sysman.emSDK.conf.TargetInstaller.main(TargetInstaller.java:3758)

Exception in getting local host

java.net.UnknownHostException: oracle: oracle

at java.net.InetAddress.getLocalHost(InetAddress.java:1191)

at oracle.sysman.emSDK.conf.TargetInstaller.getLocalHost(TargetInstaller.java:4977)

at oracle.sysman.emSDK.conf.TargetInstaller.main(TargetInstaller.java:3758)

OC4J Configuration issue. /u01/app/oracle/product/10.2.0/dbhome_1/oc4j/j2ee/OC4J_DBConsole_null_orcl not found.

总结：监听可以启动，EM无法启动，那么我们这里监听的状态又使用的是127.0.0.1，而不是orale那，我们先改一下listener.ora看看

[oracle@oracle~]$vi/u01/app/oracle/product/10.2.0/dbhome_1/network/admin/listener.ora

# listener.ora Network Configuration File: /u01/app/oracle/product/10.2.0/dbhome_1/network/admin/listener.ora

# Generated by Oracle configuration tools.

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(SID_NAME = PLSExtProc)

(ORACLE_HOME = /u01/app/oracle/product/10.2.0/dbhome_1)

(PROGRAM = extproc)

)

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))

(ADDRESS = (PROTOCOL = TCP)(HOST = localhost.localdomain)(PORT = 1521))

)

<cle/product/10.2.0/dbhome_1/network/admin/listener.ora" 20L, 525C 1,1 All

把HOST = localhost.localdomain 改成HOST = oracle重启监听

[oracle@oracle ~]$ lsnrctl stop

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 26-FEB-2011 02:12:05

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))

The command completed successfully

[oracle@oracle ~]$ lsnrctl start

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 26-FEB-2011 02:12:29

Starting /u01/app/oracle/product/10.2.0/dbhome_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 10.2.0.1.0 - Production

System parameter file is /u01/app/oracle/product/10.2.0/dbhome_1/network/admin/listener.ora

Log messages written to /u01/app/oracle/product/10.2.0/dbhome_1/network/log/listener.log

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))

Error listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=oracle)(PORT=1521)))

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

TNS-12560: TNS:protocol adapter error

TNS-00515: Connect failed because target host or object does not exist

Linux Error: 11: Resource temporarily unavailable

Listener failed to start. See the error message(s) above...

启动失败

B.我们下面只更改hosts文件不更改network看看是什么情况

[oracle@localhost ~]$ vi /etc/hosts

# Do not remove the following line, or various programs

# that require network functionality will fail.

127.0.0.1 localhost.localdomain localhost

::1 localhost6.localdomain6 localhost6

这里值得注意的是hosts文件配置是分三部分 ip 主机名别名

那么主机名和别名有什么区别？我们做个试验

将主机名改成123 别名改成456 看看有什么效果？包括监听及EM

[oracle@localhost ~]$ su -

Password:

[root@localhost ~]#

# Do not remove the following line, or various programs

# that require network functionality will fail.

127.0.0.1 123 456

::1 localhost6.localdomain6 localhost6

重启后

[oracle@localhost ~]$

[oracle@localhost ~]$ lsnrctl start

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 26-FEB-2011 02:26:35

Starting /u01/app/oracle/product/10.2.0/dbhome_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 10.2.0.1.0 - Production

System parameter file is /u01/app/oracle/product/10.2.0/dbhome_1/network/admin/listener.ora

Log messages written to /u01/app/oracle/product/10.2.0/dbhome_1/network/log/listener.log

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))

Error listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost.localdomain)(PORT=1521)))

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

TNS-12560: TNS:protocol adapter error

TNS-00515: Connect failed because target host or object does not exist

Linux Error: 11: Resource temporarily unavailable

Listener failed to start. See the error message(s) above...

监听启动失败了，那么我们改一下listener试试，先改成456试试

# listener.ora Network Configuration File: /u01/app/oracle/product/10.2.0/dbhome_1/network/admin/listener.ora

# Generated by Oracle configuration tools.

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(SID_NAME = PLSExtProc)

(ORACLE_HOME = /u01/app/oracle/product/10.2.0/dbhome_1)

(PROGRAM = extproc)

)

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))

(ADDRESS = (PROTOCOL = TCP)(HOST = 456)(PORT = 1521))

)

[oracle@localhost ~]$ lsnrctl start

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 26-FEB-2011 02:29:46

Starting /u01/app/oracle/product/10.2.0/dbhome_1/bin/tnslsnr: please wait...

TNS-12537: TNS:connection closed

TNS-12560: TNS:protocol adapter error

TNS-00507: Connection closed

Linux Error: 29: Illegal seek

监听启动失败，那么改成123那

[oracle@localhost ~]$ lsnrctl start

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 26-FEB-2011 02:30:58

Starting /u01/app/oracle/product/10.2.0/dbhome_1/bin/tnslsnr: please wait...

TNS-12537: TNS:connection closed

TNS-12560: TNS:protocol adapter error

TNS-00507: Connection closed

Linux Error: 29: Illegal seek

总结：说明只改hosts文件也是不行的，监听起不来，那么我们把network里的hostname也改一下，改成123试试

[oracle@123 ~]$ lsnrctl start

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 26-FEB-2011 02:40:22

Starting /u01/app/oracle/product/10.2.0/dbhome_1/bin/tnslsnr: please wait...

TNS-12537: TNS:connection closed

TNS-12560: TNS:protocol adapter error

TNS-00507: Connection closed

Linux Error: 29: Illegal seek

现在是listener和hosts和network都是123还是无法启动监听

把hosts里的456改成localhost试试

# Do not remove the following line, or various programs

# that require network functionality will fail.

127.0.0.1 123 localhost

::1 localhost6.localdomain6 localhost6

[oracle@123 ~]$ lsnrctl start

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 26-FEB-2011 02:44:06

Starting /u01/app/oracle/product/10.2.0/dbhome_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 10.2.0.1.0 - Production

System parameter file is /u01/app/oracle/product/10.2.0/dbhome_1/network/admin/listener.ora

Log messages written to /u01/app/oracle/product/10.2.0/dbhome_1/network/log/listener.log

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=0.0.0.123)(PORT=1521)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))

STATUS of the LISTENER

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

Alias LISTENER

Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production

Start Date 26-FEB-2011 02:44:07

Uptime 0 days 0 hr. 0 min. 0 sec

Trace Level off

Security ON: Local OS Authentication

SNMP OFF

Listener Parameter File /u01/app/oracle/product/10.2.0/dbhome_1/network/admin/listener.ora

Listener Log File /u01/app/oracle/product/10.2.0/dbhome_1/network/log/listener.log

Listening Endpoints Summary...

(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))

(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=0.0.0.123)(PORT=1521)))

Services Summary...

Service "PLSExtProc" has 1 instance(s).

Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...

The command completed successfully

监听启动成功，EM无法启动提示找不到对应的文件，那么我们就知道hosts里的别名就需要用localhost。

先我们把hosts和network的hostname都改成nag_oracle,listener.ora也改成nag_oracle

看一下状态准备解决EM启动不了的问题

[oracle@nag_oracle ~]$ lsnrctl start

LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 26-FEB-2011 02:56:23

Starting /u01/app/oracle/product/10.2.0/dbhome_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 10.2.0.1.0 - Production

System parameter file is /u01/app/oracle/product/10.2.0/dbhome_1/network/admin/listener.ora

Log messages written to /u01/app/oracle/product/10.2.0/dbhome_1/network/log/listener.log

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=nag_oracle)(PORT=1521)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))

STATUS of the LISTENER

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

Alias LISTENER

Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production

Start Date 26-FEB-2011 02:56:25

Uptime 0 days 0 hr. 0 min. 0 sec

Trace Level off

Security ON: Local OS Authentication

SNMP OFF

Listener Parameter File /u01/app/oracle/product/10.2.0/dbhome_1/network/admin/listener.ora

Listener Log File /u01/app/oracle/product/10.2.0/dbhome_1/network/log/listener.log

Listening Endpoints Summary...

(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))

(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=nag_oracle)(PORT=1521)))

Services Summary...

Service "PLSExtProc" has 1 instance(s).

Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...

The command completed successfully

[oracle@nag_oracle ~]$ emctl start dbconsole

TZ set to US/Pacific

OC4J Configuration issue. /u01/app/oracle/product/10.2.0/dbhome_1/oc4j/j2ee/OC4J_DBConsole_nag_oracle_orcl not found.

二．恢复启动EM

从上面的试验我们可看出，只要hosts和network里的hostname对应监听是可以启动的，即使改变ip，我们listener里host配置的是hostname而不是ip，多用对启动监听没有什么影响。

那么我们改变了主机名后对什么文件产生了影响导致EM无法启动了那，从上面我们可以看出一个路径提示找不到/u01/app/oracle/product/10.2.0/dbhome_1/oc4j/j2ee/OC4J_DBConsole_nag_oracle_orcl not found.

下面我们列出改变主机名后需要更改的文件及路径

1. listener.ora 启动监听用的，tnsname.ora

2. /u01/app/oracle/product/10.2.0/dbhome_1 也就是ORACLE-HOEM\下的

原主机名_实例的目录，把主机名修改一下

3. /u01/app/oracle/product/10.2.0/dbhome_1/oc4j/j2ee/ 下

OC4J_DBConsole_原主机名_实例名

下面我们分别修改一下

[oracle@nag_oracle admin]$ ls

listener.ora samples shrept.lst sqlnet.ora tnsnames.ora

[oracle@nag_oracle admin]$ pwd

/u01/app/oracle/product/10.2.0/dbhome_1/network/admin

[oracle@nag_oracle admin]$ vi tnsnames.ora

# tnsnames.ora Network Configuration File: /u01/app/oracle/product/10.2.0/dbhome_1/network/admin/tnsnames.ora

# Generated by Oracle configuration tools.

ORCL =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST =nag_oracle)(PORT = 1521))

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = orcl)

)

EXTPROC_CONNECTION_DATA =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))

)

(CONNECT_DATA =

(SID = PLSExtProc)

(PRESENTATION = RO)

)

"tnsnames.ora" 23L, 530C

[oracle@nag_oracle admin]$ cd /u01/app/oracle/product/10.2.0/dbhome_1/

[oracle@nag_oracle dbhome_1]$ pwd

/u01/app/oracle/product/10.2.0/dbhome_1

[oracle@nag_oracle dbhome_1]$ ls

assistants has localhost.localdomain_orcl oracore root.sh.old

bin hs log oraInst.loc slax

cdata install md ord sqlj

cfgtoollogs install.platform mesg oui sqlnet.log

clone inventory mgw owm sqlplus

config javavm network perl srvm

crs jdbc nls plsql sysman

css jdk oc4j precomp uix

ctx jlib odbc racg wwg

dbs jre olap rdbms xdk

demo ldap OPatch relnotes

diagnostics lib opmn root.sh

[oracle@nag_oracle dbhome_1]$ mv localhost.localdomain_orcl/ nag_oracle_orcl/

[oracle@nag_oracle dbhome_1]$ ls

assistants demo jlib nls owm sqlj

bin diagnostics jre oc4j perl sqlnet.log

cdata has ldap odbc plsql sqlplus

cfgtoollogs hs lib olap precomp srvm

clone install log OPatch racg sysman

config install.platform md opmn rdbms uix

crs inventory mesg oracore relnotes wwg

css javavm mgw oraInst.loc root.sh xdk

ctx jdbc nag_oracle_orcl ord root.sh.old

dbs jdk network oui slax

[oracle@nag_oracle j2ee]$ cd /u01/app/oracle/product/10.2.0/dbhome_1/oc4j/j2ee

[oracle@nag_oracle j2ee]$ ls

deploy_db.ini isqlplus OC4J_DBConsole

home oc4j_applications OC4J_DBConsole_localhost.localdomain_orcl

[oracle@nag_oracle j2ee]$ mv OC4J_DBConsole_localhost.localdomain_orcl OC4J_DBConsole_nag_oracle_orcl

[oracle@nag_oracle j2ee]$ ls

deploy_db.ini isqlplus OC4J_DBConsole

home oc4j_applications OC4J_DBConsole_nag_oracle_orcl

[oracle@nag_oracle j2ee]$

重新配置EM

/*重新配置dbcosole

emca -repos drop

emca -repos create

emca -config dbcontrol db

emctl start dbconsole

[oracle@nag_oracle ~]$ emca -repos drop

STARTED EMCA at Feb 26, 2011 3:28:27 AM

EM Configuration Assistant, Version 10.2.0.1.0 Production

Enter the following information:

Database SID: orcl

Listener port number: 1521

Password for SYS user:

Password for SYSMAN user:

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

Feb 26, 2011 3:28:42 AM oracle.sysman.emcp.EMConfig perform

INFO: This operation is being logged at /u01/app/oracle/product/10.2.0/dbhome_1/cfgtoollogs/emca/orcl/emca_2011-02-26_03-28-26-AM.log.

Feb 26, 2011 3:28:43 AM oracle.sysman.emcp.EMReposConfig dropRepository

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

Feb 26, 2011 3:31:09 AM oracle.sysman.emcp.EMReposConfig invoke

INFO: Repository successfully dropped

Enterprise Manager configuration completed successfully

FINISHED EMCA at Feb 26, 2011 3:31:09 AM

删除的过程需要填写

Database SID: orcl

Listener port number: 1521

及sys和SYSMAN的密码

删除需要运行几分钟

然后重新创建

[oracle@nag_oracle ~]$ emca -repos create

STARTED EMCA at Feb 26, 2011 3:34:40 AM

EM Configuration Assistant, Version 10.2.0.1.0 Production

Enter the following information:

Database SID: orcl

Listener port number: 1521

Password for SYS user:

Password for SYSMAN user:

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

Feb 26, 2011 3:34:57 AM oracle.sysman.emcp.EMConfig perform

INFO: This operation is being logged at /u01/app/oracle/product/10.2.0/dbhome_1/cfgtoollogs/emca/orcl/emca_2011-02-26_03-34-40-AM.log.

Feb 26, 2011 3:34:57 AM oracle.sysman.emcp.EMReposConfig createRepository

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

Feb 26, 2011 3:39:43 AM oracle.sysman.emcp.EMReposConfig invoke

INFO: Repository successfully created

Enterprise Manager configuration completed successfully

FINISHED EMCA at Feb 26, 2011 3:39:43 AM

重新配置 dbcontrol db 中间会要求输入几个用户的密码

使用sysdba修改一下密码即可，或是提前修改

需要输入密码的用户：sys、DBSNMP、SYSMAN

Email可以不输入，直接敲回车即可

[oracle@nag_oracle ~]$ emca -config dbcontrol db

STARTED EMCA at Feb 26, 2011 3:40:42 AM

EM Configuration Assistant, Version 10.2.0.1.0 Production

Enter the following information:

Database SID: orcl

Database Control is already configured for the database orcl

You have chosen to configure Database Control for managing the database orcl

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 port number: 1521

Password for SYS user:

Password for DBSNMP user:

Password for DBSNMP user: Invalid username/password.

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/10.2.0/dbhome_1

Database hostname ................ nag_oracle

Listener port number ................ 1521

Database SID ................ orcl

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

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

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

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

Feb 26, 2011 3:42:45 AM oracle.sysman.emcp.EMConfig perform

INFO: This operation is being logged at /u01/app/oracle/product/10.2.0/dbhome_1/cfgtoollogs/emca/orcl/emca_2011-02-26_03-40-42-AM.log.

Feb 26, 2011 3:42:46 AM oracle.sysman.emcp.DatabaseChecks performReposChecks

WARNING: 'shared_pool_size' must be greater than or equal to 80 MB.

Feb 26, 2011 3:42:47 AM oracle.sysman.emcp.util.DBControlUtil stopOMS

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

Feb 26, 2011 3:43:24 AM oracle.sysman.emcp.util.DBControlUtil startOMS

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

Feb 26, 2011 3:45:20 AM oracle.sysman.emcp.EMDBPostConfig performConfiguration

INFO: Database Control started successfully

Feb 26, 2011 3:45:20 AM oracle.sysman.emcp.EMDBPostConfig performConfiguration

INFO: >>>>>>>>>>> The Database Control URL is http://nag_oracle:1158/em <<<<<<<<<<<

Enterprise Manager configuration completed successfully

FINISHED EMCA at Feb 26, 2011 3:45:20 AM

启动EM

[oracle@nag_oracle ~]$ emctl start dbconsole

TZ set to US/Pacific

Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0

http://nag_oracle:1158/em/console/aboutApplication

- An instance of Oracle Enterprise Manager 10g Database Control is already running.

会提示已经启动了

[oracle@nag_oracle ~]$ firefox

把地址输入即可访问http://nag_oracle:1158/em/console/aboutApplication

注意：如果上述的方法还是无法启动，可以参照下面的方法，手动删除一些信息再创建

同样适用于windows,unix,linux其他原因导致DBCONSOLE无法正常启动。

1，修改DBSNMP密码：

重新配置DBCONSOLE，需要输入DBSNMP密码，但任何密码都会显示错误，需要预先修改。

sql>alter user dbsnmp identified by xxx;

2，删除早期DBCONSOLE创建的用户：

sql>drop role MGMT_USER;

sql>drop user MGMT_VIEW cascade;

sql>drop user sysman cascade;

3，删除早期DBCONSOLE创建的对象：

sql>drop PUBLIC SYNONYM MGMT_TARGET_BLACKOUTS;

sql>drop public synonym SETEMVIEWUSERCONTEXT;

4. emca -config dbcontrol db -repos recreate

注：静态修改主机名后，监听要正常启动，hosts和network中的主机名必须同时修改，而且必须一致

转载于:https://blog.51cto.com/liurh931693/1188075

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