oracle动态注冊參数local_listener

local_listener參数有两种书写格式，提供了不同的功能。

监听文件上，1521和1526port上都有动态监听port。

[oracle@dbsv admin]$ cat listener.ora
LISTENER=
  (DESCRIPTION=
    (ADDRESS_LIST=
      (ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1521))
      (ADDRESS=(PROTOCOL=ipc)(KEY=extproc))))
SID_LIST_LISTENER=
  (SID_LIST=
    (SID_DESC=
      (GLOBAL_DBNAME=PROD)
      (ORACLE_HOME=/u01/oracle)
      (SID_NAME=PROD))
    (SID_DESC=
      (GLOBAL_DBNAME=EMREP)
      (ORACLE_HOME=/u01/oracle)
      (SID_NAME=EMREP))
    (SID_DESC=
      (SID_NAME=plsextproc)
      (ORACLE_HOME=/u01/oracle)
      (PROGRAM=extproc)))

LSNR2=
  (DESCRIPTION=
    (ADDRESS_LIST=
      (ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1526))
      (ADDRESS=(PROTOCOL=ipc)(KEY=extproc2))))

[oracle@dbsv admin]$ cat tnsnames.ora
prod=
 (DESCRIPTION=
  (ADDRESS_LIST=
     (ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(port=1521)))
   (CONNECT_DATA=(SERVICE_NAME=PROD)(SERVER=dedicated)))

lsnr2 =
(DESCRIPTION=
	(ADDRESS_LIST=
		(ADDRESS = (PROTOCOL = TCP)(HOST = dbsv)(PORT = 1521))
		(ADDRESS = (PROTOCOL = TCP)(HOST = dbsv)(PORT = 1526))
	)
)

写法一：将数据库动态注冊到单独port的监听上

alter system set local_listener='(ADDRESS=(PROTOCOL=TCP)(HOST=dbsv)(PORT=1526))';

验证：

[oracle@dbsv admin]$ lsnrctl stat 

LSNRCTL for Linux: Version 10.2.0.2.0 - Production on 21-JUN-2014 12:09:47

Copyright (c) 1991, 2005, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 10.2.0.2.0 - Production
Start Date                21-JUN-2014 10:42:29
Uptime                    0 days 1 hr. 27 min. 17 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/oracle/network/admin/listener.ora
Listener Log File         /u01/oracle/network/log/listener.log
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=extproc)))
Services Summary...
Service "EMREP" has 1 instance(s).
  Instance "EMREP", status UNKNOWN, has 1 handler(s) for this service...
Service "PROD" has 1 instance(s).
  Instance "PROD", status UNKNOWN, has 1 handler(s) for this service...
Service "plsextproc" has 1 instance(s).
  Instance "plsextproc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
[oracle@dbsv admin]$ lsnrctl stat lsnr2

LSNRCTL for Linux: Version 10.2.0.2.0 - Production on 21-JUN-2014 12:09:59

Copyright (c) 1991, 2005, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1526)))
STATUS of the LISTENER
------------------------
Alias                     LSNR2
Version                   TNSLSNR for Linux: Version 10.2.0.2.0 - Production
Start Date                21-JUN-2014 10:40:53
Uptime                    0 days 1 hr. 29 min. 5 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/oracle/network/admin/listener.ora
Listener Log File         /u01/oracle/network/log/lsnr2.log
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1526)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=extproc2)))
Services Summary...
Service "PROD" has 1 instance(s).
  Instance "PROD", status READY, has 1 handler(s) for this service...
Service "PROD_XPT" has 1 instance(s).
  Instance "PROD", status READY, has 1 handler(s) for this service...
The command completed successfully

1521上没有动态注冊的监听库（READY）。1526port上有READY

方法二：将数据库动态注冊到一个或多个开通动态注冊服务的监听port上

在tnsnames.ora文件里写出network_name描写叙述的监听信息，如上面的lsnr2

alter system set local_listener=lsnr2;

验证：

[oracle@dbsv admin]$ lsnrctl stat 

LSNRCTL for Linux: Version 10.2.0.2.0 - Production on 21-JUN-2014 12:13:26

Copyright (c) 1991, 2005, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 10.2.0.2.0 - Production
Start Date                21-JUN-2014 10:42:29
Uptime                    0 days 1 hr. 30 min. 56 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/oracle/network/admin/listener.ora
Listener Log File         /u01/oracle/network/log/listener.log
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=extproc)))
Services Summary...
Service "EMREP" has 1 instance(s).
  Instance "EMREP", status UNKNOWN, has 1 handler(s) for this service...
Service "PROD" has 2 instance(s).
  Instance "PROD", status UNKNOWN, has 1 handler(s) for this service...
  Instance "PROD", status READY, has 1 handler(s) for this service...
Service "PROD_XPT" has 1 instance(s).
  Instance "PROD", status READY, has 1 handler(s) for this service...
Service "plsextproc" has 1 instance(s).
  Instance "plsextproc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
[oracle@dbsv admin]$ lsnrctl stat lsnr2

LSNRCTL for Linux: Version 10.2.0.2.0 - Production on 21-JUN-2014 12:13:30

Copyright (c) 1991, 2005, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1526)))
STATUS of the LISTENER
------------------------
Alias                     LSNR2
Version                   TNSLSNR for Linux: Version 10.2.0.2.0 - Production
Start Date                21-JUN-2014 10:40:53
Uptime                    0 days 1 hr. 32 min. 37 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/oracle/network/admin/listener.ora
Listener Log File         /u01/oracle/network/log/lsnr2.log
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=dbsv)(PORT=1526)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=extproc2)))
Services Summary...
Service "PROD" has 1 instance(s).
  Instance "PROD", status READY, has 1 handler(s) for this service...
Service "PROD_XPT" has 1 instance(s).
  Instance "PROD", status READY, has 1 handler(s) for this service...
The command completed successfully

两个port上的监听。就都有数据库的动态注冊（READY）了。