ora12541及tnsping很慢问题

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注意host文件

127.0.0.1 主机名

127.0.0.1 localhost

客户端配置目录D:\install\PLSQL\instantclient_11_2

ORCALE配置目录D:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN

lsnrctl stop

lsnrctl start

tnsping 192.168.1.2

tnsping 服务名

检查日志文件

D:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora

# listener.ora Network Configuration File: D:\app\Administrator\product\11.2.0\dbhome_1\network\admin\listener.ora# Generated by Oracle configuration tools.SID_LIST_LISTENER =  (SID_LIST =    (SID_DESC =      (GLOBAL_DBNAME = YIPARTS)      (ORACLE_HOME =D:\app\Administrator\product\11.2.0\dbhome_1)      (SID_NAME = YIPARTS)    )    (SID_DESC =      (SID_NAME = CLRExtProc)      (ORACLE_HOME = D:\app\Administrator\product\11.2.0\dbhome_1)      (PROGRAM = extproc)      (ENVS = "EXTPROC_DLLS=ONLY:D:\app\Administrator\product\11.2.0\dbhome_1\bin\oraclr11.dll")    )  )LISTENER =  (DESCRIPTION_LIST =    (DESCRIPTION =      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.5)(PORT = 1521))    )  )ADR_BASE_LISTENER = D:\app\Administrator

D:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN\tnsnames.ora

# tnsnames.ora Network Configuration File: D:\app\Administrator\product\11.2.0\dbhome_1\network\admin\tnsnames.ora# Generated by Oracle configuration tools.ORACLR_CONNECTION_DATA =  (DESCRIPTION =    (ADDRESS_LIST =      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))    )    (CONNECT_DATA =      (SID = CLRExtProc)      (PRESENTATION = RO)    )  )YIPARTS =  (DESCRIPTION =    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.5)(PORT = 1521))    (CONNECT_DATA =      (SERVER = DEDICATED)      (SERVICE_NAME = YIPARTS)    )  )

D:\install\PLSQL\instantclient_11_2\listener.ora

# listener.ora Network Configuration File: D:\install\PLSQL\instantclient_11_2\listener.ora# Generated by Oracle configuration tools.SID_LIST_LISTENER =  (SID_LIST =    (SID_DESC =      (GLOBAL_DBNAME = YIPARTS)      (ORACLE_HOME =D:\app\Administrator\product\11.2.0\dbhome_1)      (SID_NAME = YIPARTS)    )    (SID_DESC =      (SID_NAME = CLRExtProc)      (ORACLE_HOME = D:\app\Administrator\product\11.2.0\dbhome_1)      (PROGRAM = extproc)      (ENVS = "EXTPROC_DLLS=ONLY:D:\app\Administrator\product\11.2.0\dbhome_1\bin\oraclr11.dll")    )  )LISTENER =  (DESCRIPTION_LIST =    (DESCRIPTION =      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.5)(PORT = 1521))      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))    )  )ADR_BASE_LISTENER = D:\app\Administrator

D:\install\PLSQL\instantclient_11_2\tnsnames.ora

# tnsnames.ora Network Configuration File: D:\install\PLSQL\instantclient_11_2\tnsnames.ora# Generated by Oracle configuration tools.ORACLR_CONNECTION_DATA =  (DESCRIPTION =    (ADDRESS_LIST =      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))    )    (CONNECT_DATA =      (SID = CLRExtProc)      (PRESENTATION = RO)    )  )YIPARTS =  (DESCRIPTION =    (ADDRESS_LIST =      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.5)(PORT = 1521))    )    (CONNECT_DATA =      (SERVER = DEDICATED)      (SERVICE_NAME = YIPARTS)    )  )

关于连接很慢的问题

在sqlnet.ora的SQLNET.AUTHENTICATION_SERVICES设置，如果设置NTS，则“优先”使用Windows验证，然后使用Oracle验证，而设置none，则“只”使用Oracle验证。而我在程序当然使用Oracle验证，而该配置文件默认NTS方式

把认证方式改为none，程序连接速度只需要500毫秒，问题解决

清理删除 D:\app\Administrator\diag\tnslsnr\ORA-YIPARTS\listener\trace\listener.log

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