默认oracle的共享服务是注册到动态注册服务里面的
[email protected]> select * from v$version where rownum=1;
BANNER
----------------------------------------------------------------------------------------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
[[email protected] admin]$ cat listener.ora
# listener.ora Network Configuration File: /home/u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME =prod3.oracle.com)
--这是静态注册服务
(ORACLE_HOME = /home/u01/app/oracle/product/11.2.0/db_1)
(SID_NAME =PROD3)
)
(SID_DESC =
(GLOBAL_DBNAME = PLSExtProc)
(ORACLE_HOME = /home/u01/app/oracle/product/11.2.0/db_1)
(SID_NAME = PLSExtProc)
)
)
LISTENER =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = server1)(PORT = 1521))
)
设置共享服务器：
alter system set DISPATCHERS = ‘(PROTOCOL=TCP)(DISPATCHERS=3)‘;
alter system set shared_server_sessions=200 scope=both;
alter system set max_dispatchers=10 scope=both;
alter system set shared_servers=10 scope=both;
alter system set max_shared_servers=30 scope=both;
[[email protected] admin]$ lsnrctl services
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 20-APR-2015 15:46:17
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=server1)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0
LOCAL SERVER
Service "PROD3" has 1 instance(s).
Instance "PROD3", status READY, has 4 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0 state:ready
LOCAL SERVER
"D001" established:0 refused:0 current:0 max:1022 state:ready
DISPATCHER <machine: server1, pid: 6889>
(ADDRESS=(PROTOCOL=tcp)(HOST=server1)(PORT=57907))
"D000" established:0 refused:0 current:0 max:1022 state:ready
DISPATCHER <machine: server1, pid: 6887>
(ADDRESS=(PROTOCOL=tcp)(HOST=server1)(PORT=64757))
"D002" established:0 refused:0 current:0 max:1022 state:ready
DISPATCHER <machine: server1, pid: 6891>
(ADDRESS=(PROTOCOL=tcp)(HOST=server1)(PORT=31428))
Service "prod3.oracle.com" has 1 instance(s).
Instance "PROD3", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0
LOCAL SERVER
The command completed successfully
--静态注册服务prod3.oracle.com里面没有dispatcher,动态注册prod3里面有
cat tnsnames.ora
PROD3_S =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = server1)(PORT = 1521))
)
(CONNECT_DATA =
(server=shared)
(SERVICE_NAME =prod3.oracle.com)
)
)
PROD3 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = server1)(PORT = 1521))
)
(CONNECT_DATA =
(server=dedicated)
(SERVICE_NAME =prod3.oracle.com)
)
)
因为服务prod3.oracle.com 里面没有dispatcher，所以当你作为共享服务连接的时候会报错ORA-12523
[[email protected] admin]$ sqlplussys/[email protected]prod3_s
as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Mon Apr 20 15:48:49 2015
Copyright (c) 1982, 2011, Oracle. All rights reserved.
ERROR:
ORA-12523: TNS:listener could not find instance appropriate for the client
connection
将共享服务注册到静态监听里面
修改参数
alter system set dispatchers=‘(PROTOCOL=TCP)(DISPATCHERS=3)(SERVICE=PROD3,PROD3.ORACLE.COM)‘;
指定service参数
[[email protected] admin]$ lsnrctl services
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 20-APR-2015 15:49:42
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=server1)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0
LOCAL SERVER
Service "PROD3" has 1 instance(s).
Instance "PROD3", status READY, has 4 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0 state:ready
LOCAL SERVER
"D002" established:0 refused:0 current:0 max:1022 state:ready
DISPATCHER <machine: server1, pid: 6891>
(ADDRESS=(PROTOCOL=tcp)(HOST=server1)(PORT=31428))
"D001" established:0 refused:0 current:0 max:1022 state:ready
DISPATCHER <machine: server1, pid: 6889>
(ADDRESS=(PROTOCOL=tcp)(HOST=server1)(PORT=57907))
"D000" established:0 refused:0 current:0 max:1022 state:ready
DISPATCHER <machine: server1, pid: 6887>
(ADDRESS=(PROTOCOL=tcp)(HOST=server1)(PORT=64757))
Service "prod3.oracle.com" has 2 instance(s).
Instance "PROD3", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0
LOCAL SERVER
Instance "PROD3", status READY, has 3 handler(s) for this service...
Handler(s):
"D002" established:0 refused:0 current:0 max:1022 state:ready
DISPATCHER <machine: server1, pid: 6891>
(ADDRESS=(PROTOCOL=tcp)(HOST=server1)(PORT=31428))
"D001" established:0 refused:0 current:0 max:1022 state:ready
DISPATCHER <machine: server1, pid: 6889>
(ADDRESS=(PROTOCOL=tcp)(HOST=server1)(PORT=57907))
"D000" established:0 refused:0 current:0 max:1022 state:ready
DISPATCHER <machine: server1, pid: 6887>
(ADDRESS=(PROTOCOL=tcp)(HOST=server1)(PORT=64757))
The command completed successfully
现在以共享服务器访问：
[[email protected] admin]$ sqlplus sys/[email protected]_s as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Mon Apr 20 15:50:09 2015
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[email protected]>
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