From: "Steven Prasetya" 

> I read "outputfile1" and found this kind of message:
>
> ERROR  remoteListenThread_2: "select ev_origin, ev_seqno, ev_timestamp,
> ev_minxid, ev_maxxid, ev_xip,        ev_type,
>      ev_data1, ev_data2,        ev_data3, ev_data4,        ev_data5,
> ev_data6,        ev_data7, ev_data8 from "_sql_cluster".
> sl_event e where (e.ev_origin = '2' and e.ev_seqno > '0') order by
> e.ev_origin, e.ev_seqno" - could not receive data from serv
> er: Error 0
>
> What is wrong this time? I'm really stuck here. Thanks a lot for your help.

Probably, There may be no libpq of yours at thread-safe...
"could not receive data from server" is libpq-message.

In the reason I do not know your environment, this is reference. 

Regards,
Hiroshi Saito