Getting 'Internal Server Error' when accessing JSPs. Servlets ok

I have just installed WS 7 on our stage server. The test server was done some months ago. I have deployed the same applications to stage as on test.

One application is causing me problems. I call the login servlet but the result is an 'Internal Server Error' message. From my logs I can see that the servlet processed the log in successfully and redirects to a JSP. That is the last message. I can find no further info in any of the other standard out/err logs.

I have tried creating a simple JSP containing only HTML - same error. If I rename the file to test.html, it displays correctly. The plugin configuration appears to be identical with the one on the test server (where everything works)

Ideas anyone?

http_plugin.log

[Tue Sep 21 14:06:02 2010] 00000bd4 00002430 - ERROR: ws_common: websphereGetStream: socket error conditions pending
[Tue Sep 21 14:06:02 2010] 00000bd4 00002430 - ERROR: ws_common: websphereExecute: Failed to create the stream
[Tue Sep 21 14:06:02 2010] 00000bd4 00002430 - ERROR: ws_common: websphereHandleRequest: Failed to execute the transaction to 'server1'on host 'SRVxyz'; will try another开发者_如何学运维 one
[Tue Sep 21 14:06:03 2010] 00000bd4 00002430 - ERROR: ws_common: websphereGetStream: socket error conditions pending
[Tue Sep 21 14:06:03 2010] 00000bd4 00002430 - ERROR: ws_common: websphereExecute: Failed to create the stream
[Tue Sep 21 14:06:03 2010] 00000bd4 00002430 - ERROR: ws_common: websphereHandleRequest: Failed to execute the transaction to 'server1'on host 'SRVxyz'; will try another one
[Tue Sep 21 14:06:03 2010] 00000bd4 00002430 - ERROR: ws_common: websphereWriteRequestReadResponse: Failed to find an app server to handle this request
[Tue Sep 21 14:06:03 2010] 00000bd4 00002430 - ERROR: ESI: getResponse: failed to get response: rc = 2
[Tue Sep 21 14:06:03 2010] 00000bd4 00002430 - ERROR: ws_common: websphereHandleRequest: Failed to handle request

---

Problem is now solved.

The installation process created a default server. I had ignored this thinking that it doesn't matter. I removed the server and regenerated the plug-in config and my app works fine.