如何监听Oracle

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Oracle 监听

一：没有listener.ora监听文件

监听文件listener.ora文件丢失；没有listener.ora文件情况时，以默认方式运行监听器，此时，监听器将在解析为计算机主机名(端口1521)的任何地址上进行监听；建议始终配置listener.ora文件，使Oracle Net环境可以自我记录；

[oracle@chen admin]$ pwd

/u01/app/Oracle/product/11。2 .0 .4/网络/admin

[oracle@chen admin]$ ls

样品来自没有配置listener.ora时，自动使用动态注册

[oracle@chen admin]$

lsnrctl status

适用于Linux:的LSNRCTL版本11 .2 .0 .4 .0-2017年七月20日生产15:05:25

版权所有(c) 1991年、2013年，甲骨文。保留所有权利。

正在连接到(ADdress=(PROTOCOL=TCP)(HOST=)(PORT=1521))

侦听器的状态

–

别名听众

适用于Linux:的TNSLSNR版本11.2.0.4.0版-生产

开始日期2017年七月20日15:0:54

正常运行时间0天0小时一分钟。30秒

跟踪水平

安全性：本地操作系统身份验证

简单网络管理协议关闭

监听器日志文件/u01/app/Oracle/diag/tnslsnr/Chen/监听器/警报/日志。可扩展标记语言

监听端点摘要.

(DESCRIPTION=(ADdress=(PROTOCOL=TCP)(HOST=Chen)(PORT=1521)))

服务摘要.

服务” orcl “有一个实例。

实例“orcl”，状态为 READY,对此服务有一个处理程序.

服务” orclXDB “有一个实例。

实例orcl ‘，状态

READY有一名处理员负责这项服务.

命令成功完成

二：监听静态注册

[oracle@chen admin]$ pwd

/u01/app/Oracle/product/11。2 .0 .4/netwo

rk/admin

[oracle@chen admin]$ cat listener.ora 
SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (GLOBAL_DBNAME = orcl)
      (ORACLE_HOME = /u01/app/oracle/product/11.2.0.4)
      (SID_NAME = orcl)
    )
  )

静态注册时：
可以远程启动数据库(需要有口令文件)；

C:\Users\Administrator>sqlplus sys/oracle@10.1.233.100:1521/orcl as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on 星期四 7月 20 13:33:09 2017

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

已连接到空闲例程。

SQL>
startup
ORACLE 例程已经启动。

Total System Global Area  839282688 bytes
Fixed Size                  2257880 bytes
Variable Size             545262632 bytes
Database Buffers          289406976 bytes
Redo Buffers                2355200 bytes
数据库装载完毕。
数据库已经打开。  [oracle@chen admin]$ lsnrctl status
…..
Listening Endpoints Summary…
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=chen)(PORT=1521)))
Services Summary…
Service "orcl" has 2 instance(s).
  Instance "orcl", status
UNKNOWN, has 1 handler(s) for this service…
  Instance "orcl", status READY, has 1 handler(s) for this service…
Service "orclXDB" has 1 instance(s).
  Instance "orcl", status READY, has 1 handler(s) for this service…
The command completed successfully

配置DG,EM等建议使用静态注册

三：监听动态注册

[oracle@chen admin]$ cat listener.ora 
LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = chen)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
  )
  
SQL> alter system register;
System altered.

[oracle@chen admin]$ lsnrctl status
Services Summary…
Service "orcl" has 1 instance(s).
  Instance "orcl", status
READY, has 1 handler(s) for this service…
Service "orclXDB" has 1 instance(s).
  Instance "orcl", status
READY, has 1 handler(s) for this service…
The command completed successfully

实例未启动时，注册不了服务
Services Summary…
Listening Endpoints Summary…
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=chen)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
The listener supports no services
The command completed successfully

动态注册时无法远程启动数据库
C:\Users\Administrator>sqlplus sys/oracle@10.1.233.100:1521/orcl as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on 星期四 7月 20 14:26:57 2017

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

ERROR:
ORA-12514: TNS: 监听程序当前无法识别连接描述符中请求的服务

请输入用户名:

四：监听动态注册+静态注册

[oracle@chen admin]$ cat listener.ora 
SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (GLOBAL_DBNAME = orcl)
      (ORACLE_HOME = /u01/app/oracle/product/11.2.0.4)
      (SID_NAME = orcl)
    )
  )
LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = chen)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
  )

[oracle@chen admin]$ lsnrctl status
……  
Services Summary…
Service "orcl" has 2 instance(s).
  Instance "orcl", status
UNKNOWN, has 1 handler(s) for this service…
  Instance "orcl", status
READY, has 1 handler(s) for this service…
Service "orclXDB" has 1 instance(s).
  Instance "orcl", status
READY, has 1 handler(s) for this service…
The command completed successfully

可以远程启动数据库
C:\Users\Administrator>sqlplus sys/oracle@10.1.233.100:1521/orcl as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on 星期四 7月 20 14:22:59 2017

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

已连接到空闲例程。

SQL>
startup
ORACLE 例程已经启动。

Total System Global Area  839282688 bytes
Fixed Size                  2257880 bytes
Variable Size             545262632 bytes
Database Buffers          289406976 bytes
Redo Buffers                2355200 bytes
数据库装载完毕。
数据库已经打开。官方文档位置如下：
Oracle Database Net Services Reference
http://docs.oracle.com/cd/E11882_01/network.112/e10835/listener.htm#NETRF008
Oracle Net Listener Parameters (listener.ora)
http://docs.oracle.com/cd/E11882_01/network.112/e10835/listener.htm#NETRF008

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