【Oracle】监听动态注册与静态注册
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出自:
client端如果想要连接到远程的数据库服务器,首先数据库服务器必须启动监听器
oracle监听器的配置在$ORACLE_HOME/network/admin/listener.ora,打开这个文件,我们看到配置如下:
SID_LIST_LISTENER =
LISTENER =
动态注册:oracleinstance的pmon进程会在instance启动之后自动将instance_name和service_name注册到1521端口中,我们只需要在listener中修改配置如下,即可实现
LISTENER =
注意我们不用修改SID_LIST_LISTENER中的配置
我们首先启动监听器 lsnrctl
LSNRCTL> start
Starting /u01/app/oracle/product/10.2.0.1/bin/tnslsnr: pleasewait...
TNSLSNR for Linux: Version 10.2.0.1.0 - Production
System parameter file is/u01/app/oracle/product/10.2.0.1/network/admin/listener.ora
Log messages written to/u01/app/oracle/product/10.2.0.1/network/log/listener.log
Listening on:(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))
Listening on:(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.102)(PORT=1521)))
Connecting to(DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
------------------------
Alias
Version
StartDate
Uptime
TraceLevel
Security
SNMP
Listener Parameter File
Listener LogFile
Listening Endpoints Summary...
Services Summary...
Service "PLSExtProc" has 1 instance(s).
The command completed successfully
由于我们没有启动instance,所以没有instance的注册信息
启动oracle实例
[oracle@localhost ~]$ export ORACLE_SID=prod
[oracle@localhost ~]$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Wed Feb 22 07:42:492012
Copyright (c) 1982, 2005, Oracle.
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area
FixedSize
VariableSize
DatabaseBuffers
RedoBuffers
Database mounted.
Database opened.
prod instance已经启动,稍等一会我们查看监听器状态
LSNRCTL> status
Connecting to(DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
------------------------
Alias
Version
StartDate
Uptime
TraceLevel
Security
SNMP
Listener Parameter File
Listener LogFile
Listening Endpoints Summary...
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Service "prod" has 1 instance(s).
Service "prod_XPT" has 1 instance(s).
The command completed successfully
发现prod服务已经被动态注册进去,其中status为READY说明动态注册成功
静态注册:由于oracle的pmon进程会自动将instance的instance_name和service_name注册到1521端口,如果我们想把instance注册到1521之外的端口,我们只能使用静态注册
下面我们修改listener.ora配置如下:
SID_LIST_LISTENER =
LISTENER =
staticReg =
SID_LIST_staticReg =
)
我们首先增加了监听配置:
staticReg =
不同于动态注册,我们必须指定listenername,这里为staticReg
然后增加了SID_LIST关于staticReg的指定配置
SID_LIST_staticReg =
)
由于是非标准端口号,我们必须指定SID_LIST配置
保存之后,启动监听:
[oracle@localhost admin]$ lsnrctl
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 22-FEB-201207:51:03
Copyright (c) 1991, 2005, Oracle.
Welcome to LSNRCTL, type "help" for information.
LSNRCTL> start
Starting /u01/app/oracle/product/10.2.0.1/bin/tnslsnr: pleasewait...
TNSLSNR for Linux: Version 10.2.0.1.0 - Production
System parameter file is/u01/app/oracle/product/10.2.0.1/network/admin/listener.ora
Log messages written to/u01/app/oracle/product/10.2.0.1/network/log/listener.log
Listening on:(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))
Connecting to(DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
------------------------
Alias
Version
StartDate
Uptime
TraceLevel
Security
SNMP
Listener Parameter File
Listener LogFile
Listening Endpoints Summary...
Services Summary...
Service "PLSExtProc" has 1 instance(s).
The command completed successfully
之后启动instance prod
[oracle@localhost ~]$ export ORACLE_SID=prod
[oracle@localhost ~]$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Wed Feb 22 07:42:492012
Copyright (c) 1982, 2005, Oracle.
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area
FixedSize
VariableSize
DatabaseBuffers
RedoBuffers
Database mounted.
Database opened.
无论我们等待多久,查看状态都是下面显示的内容
LSNRCTL> status
Connecting to(DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
------------------------
Alias
Version
StartDate
Uptime
TraceLevel
Security
SNMP
Listener Parameter File
Listener LogFile
Listening Endpoints Summary...
Services Summary...
Service "PLSExtProc" has 1 instance(s).
The command completed successfully
由于我们采用的监听端口是1522,pmon进程是不会自动注册是1521之外的端口
我们需要启动1522端口的监听
LSNRCTL> start staticReg
Starting /u01/app/oracle/product/10.2.0.1/bin/tnslsnr: pleasewait...
TNSLSNR for Linux: Version 10.2.0.1.0 - Production
System parameter file is/u01/app/oracle/product/10.2.0.1/network/admin/listener.ora
Log messages written to/u01/app/oracle/product/10.2.0.1/network/log/staticreg.log
Listening on:(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.102)(PORT=1522)))
Connecting to(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.102)(PORT=1522)))
STATUS of the LISTENER
------------------------
Alias
Version
StartDate
Uptime
TraceLevel
Security
SNMP
Listener Parameter File
Listener LogFile
Listening Endpoints Summary...
Services Summary...
Service "prod" has 1 instance(s).
The command completed successfully
由于prod采用的是静态注册,所以状态永远都是UNKNOW
等一会,我们就可以直接采用sqlplus连接,当然客户端必须有对应的tnsname的配置
C:\Users\lei_dong>sqlplus sys/prod@port1522 as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on 星期三 2月 22 23:58:062012
Copyright (c) 1982, 2005, Oracle.
连接到:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 -Production
With the Partitioning, OLAP and Data Mining options
SQL>
连接成功,
最后我们需要在client端配置tnsname,这时无论启动的是1521还是其他端口的监听,差别都不大,基本上只有端口号的差异
linux =
port1522 =
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