Getting Broken Pipe Exception while trying to open TN in 6.1?

While trying to open the TN (in 6.1),its giving the error of Broken Pipe exception.The full error is given below:

Error querying documents: java.sql.SQLException: [wm-cjdbc33-0069][Oracle JDBC Driver]Broken pipe. Original SQL: SELECT
d.DocID,
d.DocTimestamp,
t.TypeName,
s.CorporationName AS SenderCorp,
s.OrgUnitName AS SenderUnit,
r.CorporationName AS ReceiverCorp,
r.OrgUnitName AS ReceiverUnit,
d.RoutingStatus,
d.UserStatus,
d.NativeID,
d.GroupID,
d.ConversationID
FROM
BizDocTypeDef t,
Partner s,
Partner r,
BizDoc d
WHERE
d.DocTypeID = t.TypeID AND
d.SenderID = s.PartnerID AND
d.ReceiverID = r.PartnerID AND
d.DocTimestamp > {ts ‘2007-06-17 00:00:00.0’} AND
d.DocTimestamp < {ts ‘2007-06-18 00:00:00.0’}
ORDER BY d.DocTimestamp DESC
(0) java.sql.SQLException: [wm-cjdbc33-0069][Oracle JDBC Driver]Broken pipe
(1) java.sql.SQLException: [wm-cjdbc33-0069][Oracle JDBC Driver]Broken pipe

Can anyone please suggest a solution for the above problem?

I had similar error when the TN database was down. test it from the JDBC Pools page.