系統:Redhat linux
因爲服務器虛擬機是複製別一個服務器過來的,換了IP,然後我一直起監督聽與實例都無法聯接數據庫,最後查到根本的原因:
是因爲更改IP了,hostIP也需要更改。
具體需要修改兩個文件:
1、vi /etc/hosts文件,將IP修改成本機的IP
[oracle@plmdb ~]$ vi /etc/hosts
打開文件,按I進入編輯模式輸入本機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
打開文件,按I進入編輯模式更改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
修改爲本機IP和上面的保持一致。如果不知道路徑,可通過先停止監聽(lsnrctl stop)再重啓(lsnrctl start)的方式查看監聽文件的所在位置。
首先使用oracle 用戶登錄liunx,然後在shell命令中執行下面的命令:
第1步:打開oracle 監聽
$lsnrctl start
[oracle@plmdb ~]$ 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
註釋:
對於 Linux LSNRCTL: 版本 11.2.0.4.0-生產在 2017 年 8 月 15 日 13:23:58
版權所有 (c) 1991 年,2013 年,甲骨文。保留所有權利。
開始 /u01/app/oracle/product/11.2.0/dbhome_1/bin/tnslsnr: 請稍等...
對於 Linux TNSLSNR: 版本 11.2.0.4.0-生產
系統參數文件是 /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
日誌消息寫入 /u01/app/oracle/diag/tnslsnr/plmdb/listener/alert/log.xml
偵聽: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=plm)(PORT=1521)))
連接到 (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=plm)(PORT=1521)))
偵聽器的狀態
第2步:進入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>
註釋:
SQL * Plus: 在 8 月 15 日星期二發佈 11.2.0.4.0 生產 13:24:21 2017年
版權所有 (c) 1982 年,2013 年,甲骨文。保留所有權利。
第3步:使用sysdba角色登錄sqlplus
SQL>conn /as sysdba
SQL> conn /as sysdba
Connected to an idle instance.
註釋:
連接到一個空閒的實例。
第4步:啓動數據庫
SQL>startup
經過上面四個步驟,oracle數據庫就可以聯接了。
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>
註釋:
啓動 ORACLE 實例。
總系統全局區 1.3395E 10 個字節
固定的大小 2265904 字節
可變大小 6543117520 字節
數據庫緩衝區 6845104128 字節
重做緩衝區 4759552 字節
已裝入的數據庫。
打開的數據庫。
總代碼:
[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>