Shulou(Shulou.com)06/03 Report--

Exception message:

System.Net.Sockets.SocketException (0x80004005): cannot perform an operation on a socket due to insufficient system buffer space or a full queue. 192.168.0.187:22

At System.Net.Sockets.Socket.DoConnect (EndPoint endPointSnapshot, SocketAddress socketAddress)

At System.Net.Sockets.Socket.Connect (EndPoint remoteEP)

At Tamir.SharpSsh.java.net.Socket..ctor (String host, Int32 port)

At Tamir.SharpSsh.jsch.Util.createSocket (String host, Int32 port, Int32 timeout)

Error description:

WebService and processing services are deployed on the server: WebService has client polling calls; processing services also poll the database

Upload the file to SFTP after relevant processing.

Solution:

Check that the operation on the socket cannot be performed due to insufficient system buffer space or queue full

Use NETSTAT-ano > C:\ NET.TXT

Found at the end of the file C:\ NET.TXT

TCP 192.168.1.122:65529 192.168.1.124:53343 FIN_WAIT_2 22668

TCP 192.168.1.122:65530 192.168.1.124:53017 FIN_WAIT_2 14508

TCP 192.168.1.122:65531 192.168.1.124:64365 FIN_WAIT_2 23160

TCP 192.168.1.122:65532 192.168.1.124:58246 FIN_WAIT_2 23064

Verify that the socket ports on the server have been allocated.

Modify two registries:

HKEY_LOCAL_MACHINE\ System\ CurrentControlSet\ Services\ Tcpip\ Parameters\ MaxUserPort if not, manually create DWord (32-bit) "numeric data" to decimal 65534 or as appropriate.

This value represents the maximum number of ports used by the user, and the default is 5000.

HKEY_LOCAL_MACHINE\ System\ CurrentControlSet\ Services\ Tcpip\ Parameters\ TCPTimedWaitDelay if not, manually create DWord (32-bit) "numeric data" to decimal 30 or whatever you think is appropriate.

This value indicates how long a closed port can wait before it can be reused. The default is 120 seconds, that is, 2 minutes before it can be reused.

Refer to the explanation of Microsoft parameters: https://technet.microsoft.com/en-us/library/cc938196.aspx

DOS cmd command "netstat-n" to view the TCP connection

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