communication error has been detected

JDBCException E org.apache.commons.logging.impl.Jdk14Logger error A communication error has been detected. Communication protocol being used: T4Agent.sendRequest(). Communication API being used: OutputStream.flush(). Location where the error was detected: Connection reset by peer: socket write error. Communication function detecting the error: *. Protocol specific error codes(s) TCP/IP SOCKETS
[3/24/11 15:39:34:046 IST] 00000037 WebApp E [Servlet Error]-[could not execute query]: org.hibernate.exception.GenericJDBCException: could not execute query
at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(

I visited many sites, but did not find any answer,. Only questions were there. Please suggest me an answer for the same.

  1. I am using DB2 9.1
  2. On 1st attempt its showing error many times, but on the same time on 2nd attempt it successfully logins to the application.
  3. Sever: WebSphere 6.1

please tell wat maybe the issue and how to resolve the same.