unexpected EOF on client connection / could not send data to client: Broken pipe

Hi,

We are using postgres 8.3 in Open Suse 11 server.
Front end - Java, struts
Middle ware - Jboss
Backend - Postgres 8.3 DB.

Recently I am encoutering below mentioned error. Also by the time this error occuring, Linux server / Postgres Server is too slow and at
times it is not responding at all.

2012-05-02 12:14:09 IST LOG:  unexpected EOF on client connection
2012-05-02 12:14:09 IST LOG:  unexpected EOF on client connection
2012-05-02 12:14:09 IST LOG:  unexpected EOF on client connection
2012-05-02 12:14:10 IST LOG:  unexpected EOF on client connection
2012-05-02 12:14:11 IST LOG:  unexpected EOF on client connection
2012-05-02 12:14:11 IST LOG:  unexpected EOF on client connection
2012-05-02 12:14:12 IST LOG:  unexpected EOF on client connection
2012-05-02 12:14:12 IST LOG:  unexpected EOF on client connection
2012-05-02 12:14:13 IST LOG:  could not send data to client: Broken pipe

Suggest me about this. Thanks in advance.

--
Regards,
Hariraman Jayaraj