oracle监听静态注册,oracle监听器动态注册于静态注册的区别
1, oracle 10g 用netca方式建立的都默認為動態注冊方式
2，如果想改為靜態注冊的方式則在listener.ora 中加入如下內容即可
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1)
(PROGRAM = extproc)
)
(SID_DESC =
(SID_NAME = JEFF )
(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1) --就這一段
(GLOBAL_DBNAME = jeff)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = r1)(PORT = 1521))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
)
)
3，兩者的區別
即靜態注冊，listener不知道實例的狀態，只有在進程通過其連接數據庫時才能知道，如果你想使用遠程管理數據庫就使用靜態監聽
動態注冊：listener實時的都知道實例的狀態，數據庫在關閉的時候會動態的從listener中注銷，所以遠程管理數據庫的啟動和停止就不行了。
4，如何判斷是靜態注冊還是動態注冊
(1) 可以通過配置文件判斷
動態注冊
SID_LIST_LISTENER =(SID_LIST =(SID_DESC =(PROGRAM = extproc)(SID_NAME = PLSExtProc)(ORACLE_HOME = D:\oradata\orcl)))
靜態注冊
SID_LIST_LISTENER =(SID_LIST =(SID_DESC =(PROGRAM = extproc)(SID_NAME = PLSExtProc)(ORACLE_HOME = D:\oradata\orcl))(SID_DESC =(GLOBAL_DBNAME = orcl)(ORACLE_HOME = D:\oradata\orcl)(SID_NAME = ORCL))(SID_DESC =(GLOBAL_DBNAME = orcl1)(ORACLE_HOME = D:\oradata\orcl)(SID_NAME = ORCL)))
通過查看雖然可以大致看出，但是這種方法并不能和明確的現實數據庫在運行時的實際情況
(2) lsnrclt status
----靜態注冊是這樣的 都是unknow
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "jeff" has 1 instance(s).
Instance "JEFF", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
-----動態注冊是這樣的
Services Summary...
Service "JEFF" has 1 instance(s).
Instance "JEFF", status READY, has 1 handler(s) for this service...
Service "JEFFXDB" has 1 instance(s).
Instance "JEFF", status READY, has 1 handler(s) for this service...
Service "JEFF_XPT" has 1 instance(s).
Instance "JEFF", 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
3,有時候會碰到即使listener起來也不能連接到數據庫的情況 。會報一個ORA-12514 ，
運行lsnrctls status 是這個樣子的 ，說明沒有服務沒有注冊進來
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=r1)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC0)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
解決方法：
alter system register; ---手動將服務注冊到listener中
4，如果我想使用動態注冊，但是又不想使用1521端口怎么辦
這個時候我們就要用到 local_listener這個參數了，當你使用的是其他端口比如說是1522端口，那么只要配置這個參數就ok了。
SQL> alter system set local_listener='(DESCRIPTION =
2 (ADDRESS = (PROTOCOL = TCP)(HOST = xys)(PORT = 1522))
3 )';
總結
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