TNS: 连接关闭

脚本：Error # -2147467259 [Ora]Ora-12537: TNS: 连接关闭

 

net configuration assistant:
正在连接...ORA-12537: TNS: 连接关闭
测试未成功。

 

sql developer

io 异常：got minus one from a read call
Vendor code 17002

 

-----补充--------

http://download.oracle.com/docs/cd/B12037_01/network.101/b10775/concepts.htm#i1045403

http://www.lazydba.com/oracle/0__152811.html

 

The listener uses the dispatcher as a type of service handler to which it can direct client requests. When client a client request arrives, the listener performs one of the following actions:

• Hands the connection request directly to a dispatcher .

• Issues a redirect message to the client, containing the protocol address of a dispatcher. The client then terminates the network session to the listener and establishes a network session to the dispatcher, using the network address provided in the redirect message.

 

结论： 可能是server端对每个ip的连接数做了限制，不确定，没跟客户确认。