Metrics: System Runs out of Buffer Space

I have hosted a server on my computer for quite a while and this error is very new to me. Every so often, the server will be inaccessible once I receive this error. I never experienced this prior to 1.2. The various symptoms include the following:

• Unable to log-in to the server, excluding those already logged in
• Inability to go on the internet on this computer only (other computers in my household work one the same network)
• Large stack-traces every time somebody tries to log on

I have plenty of free RAM (14GB nearly unused), about 200GB of disk-space left, and 35x35 bandwidth which never falters (I checked on another computer while the server was deemed inaccessible). I have noticed I am able to log on to Ventrilo which uses port 3784 when this happens. The only way I can fix it is by restarting my system. I run the server, an FTP client so that my admins can edit files remotely, and I run a WAMP server to store my SQL databases. I'm inclined to believe it is related to 1.2, but I am not entirely sure. I've never heard of "Metrics."

Any and all help is appreciated, thank you.

Code:

2012-04-11 15:51:36 [SEVERE] [Metrics] No buffer space available (maximum connections reached?): connect
2012-04-11 15:53:34 [INFO] Disconnecting 13375P34K [/74.36.110.71:60825]: Failed to verify username! [internal error java.net.SocketException: No buffer space available (maximum connections reached?): connect]
2012-04-11 15:53:34 [SEVERE] java.net.SocketException: No buffer space available (maximum connections reached?): connect
2012-04-11 15:53:34 [SEVERE]    at java.net.PlainSocketImpl.socketConnect(Native Method)
2012-04-11 15:53:34 [SEVERE]    at java.net.PlainSocketImpl.doConnect(Unknown Source)
2012-04-11 15:53:34 [SEVERE]    at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
2012-04-11 15:53:34 [SEVERE]    at java.net.PlainSocketImpl.connect(Unknown Source)
2012-04-11 15:53:34 [SEVERE]    at java.net.SocksSocketImpl.connect(Unknown Source)
2012-04-11 15:53:34 [SEVERE]    at java.net.Socket.connect(Unknown Source)
2012-04-11 15:53:34 [SEVERE]    at java.net.Socket.connect(Unknown Source)
2012-04-11 15:53:34 [SEVERE]    at sun.net.NetworkClient.doConnect(Unknown Source)
2012-04-11 15:53:34 [SEVERE]    at sun.net.www.http.HttpClient.openServer(Unknown Source)
2012-04-11 15:53:34 [SEVERE]    at sun.net.www.http.HttpClient.openServer(Unknown Source)
2012-04-11 15:53:34 [SEVERE]    at sun.net.www.http.HttpClient.<init>(Unknown Source)
2012-04-11 15:53:34 [SEVERE]    at sun.net.www.http.HttpClient.New(Unknown Source)
2012-04-11 15:53:34 [SEVERE]    at sun.net.www.http.HttpClient.New(Unknown Source)
2012-04-11 15:53:34 [SEVERE]    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
2012-04-11 15:53:34 [SEVERE]    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
2012-04-11 15:53:34 [SEVERE]    at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
2012-04-11 15:53:34 [SEVERE]    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
2012-04-11 15:53:34 [SEVERE]    at java.net.URL.openStream(Unknown Source)
2012-04-11 15:53:34 [SEVERE]    at net.minecraft.server.ThreadLoginVerifier.run(ThreadLoginVerifier.java:34)

EDIT: Here is a list of my plugins in case this helps.

 

Fuzzwolf

This might help?

http://rwatsh.blogspot.com/2012/04/resolution-for-no-buffer-space.html

 

Thanks for the suggestion, I implemented the changes and will wait on results.