Because of network quality, the DC is disconnected from NEs when receiving NE data. A logic problem exists when the DC processes the exception. As a result, the error message 'Recv Msg Head error' is repeatedly printed in log files and the disk becomes full.
1. Check whether the log files beginning with debug in the tklog folder soar.
2. Open a log file beginning with debug. It is found that the error message 'CTcpSocket::handle_input() Recv Msg Head error!' is repeatedly printed in the log file.