系统:Redhat linux

因为服务器虚拟机是复制别一个服务器过来的,换了IP,然后我一直起监督听与实例都无法联接数据库,最后查到根本的原因:

是因为更改IP了,hostIP也需要更改。

具体需要修改两个文件:

1、vi /etc/hosts文件,将IP修改成本机的IP

[oracle@plmdb ~]$ vi /etc/hosts
打开文件,按I进入编辑模式输入本机IP
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
10.2.1.223 plm

2、vi /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora

[oracle@plmdb admin]$ vi /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
打开文件,按I进入编辑模式更改HOST
# listener.ora Network Configuration File: /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
# Generated by Oracle configuration tools.

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = plm)(PORT = 1521))
    )
  )

ADR_BASE_LISTENER = /u01/app/oracle

修改为本机IP和上面的保持一致。如果不知道路径,可通过先停止监听(lsnrctl stop)再重启(lsnrctl start)的方式查看监听文件的所在位置。

 

首先使用oracle 用户登录liunx,然后在shell命令中执行下面的命令:

第1步:打开oracle 监听

$lsnrctl start

[oracle@plmdb ~]$ lsnrctl start

LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 15-AUG-2017 13:23:58

Copyright (c) 1991, 2013, Oracle.  All rights reserved.

Starting /u01/app/oracle/product/11.2.0/dbhome_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 11.2.0.4.0 - Production
System parameter file is /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Log messages written to /u01/app/oracle/diag/tnslsnr/plmdb/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=plm)(PORT=1521)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=plm)(PORT=1521)))
STATUS of the LISTENER
注释:
对于 Linux LSNRCTL: 版本 11.2.0.4.0-生产在 2017 年 8 月 15 日 13:23:58
版权所有 (c) 1991 年,2013 年,甲骨文。保留所有权利。
开始 /u01/app/oracle/product/11.2.0/dbhome_1/bin/tnslsnr: 请稍等...
对于 Linux TNSLSNR: 版本 11.2.0.4.0-生产
系统参数文件是 /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
日志消息写入 /u01/app/oracle/diag/tnslsnr/plmdb/listener/alert/log.xml
侦听: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=plm)(PORT=1521)))
连接到 (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=plm)(PORT=1521)))
侦听器的状态

第2步:进入sqlplus

$sqlplus /nolog

SQL>


[oracle@plmdb ~]$ sqlplus /nolog

SQL*Plus: Release 11.2.0.4.0 Production on Tue Aug 15 13:24:21 2017

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

SQL>

注释:
SQL * Plus: 在 8 月 15 日星期二发布 11.2.0.4.0 生产 13:24:21 2017年
版权所有 (c) 1982 年,2013 年,甲骨文。保留所有权利。

第3步:使用sysdba角色登录sqlplus

SQL>conn /as sysdba

SQL> conn /as sysdba
Connected to an idle instance.
注释:
连接到一个空闲的实例。

第4步:启动数据库

SQL>startup

经过上面四个步骤,oracle数据库就可以联接了。

SQL> startup
ORACLE instance started.

Total System Global Area 1.3395E+10 bytes
Fixed Size        2265904 bytes
Variable Size      6543117520 bytes
Database Buffers    6845104128 bytes
Redo Buffers          4759552 bytes
Database mounted.
Database opened.
SQL>

注释:
启动 ORACLE 实例。
总系统全局区 1.3395E 10 个字节
固定的大小 2265904 字节
可变大小 6543117520 字节
数据库缓冲区 6845104128 字节
重做缓冲区 4759552 字节
已装入的数据库。
打开的数据库。

总代码:

[oracle@plmdb ~]$ lsnrctl start

LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 15-AUG-2017 13:23:58

Copyright (c) 1991, 2013, Oracle.  All rights reserved.

Starting /u01/app/oracle/product/11.2.0/dbhome_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 11.2.0.4.0 - Production
System parameter file is /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Log messages written to /u01/app/oracle/diag/tnslsnr/plmdb/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=plm)(PORT=1521)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=plm)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.4.0 - Production
Start Date                15-AUG-2017 13:23:59
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/11.2.0/dbhome_1/network/admin/listener.ora
Listener Log File         /u01/app/oracle/diag/tnslsnr/plmdb/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=plm)(PORT=1521)))
The listener supports no services
The command completed successfully

[oracle@plmdb ~]$ sqlplus /nolog

SQL*Plus: Release 11.2.0.4.0 Production on Tue Aug 15 13:24:21 2017

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

SQL>

SQL> conn /as sysdba
Connected to an idle instance.

SQL> startup
ORACLE instance started.

Total System Global Area 1.3395E+10 bytes
Fixed Size		    2265904 bytes
Variable Size		 6543117520 bytes
Database Buffers	 6845104128 bytes
Redo Buffers		    4759552 bytes
Database mounted.
Database opened.
SQL>

 

转载于:https://my.oschina.net/ch66880/blog/1505686

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