Cognos query cuasing database crash.

Hi every body, We have a production server IBM Informix Dynamic Server Version 11.50.FC3W1. There is one Cognos query which is causing our database to crash. I am not asking why but I just want to know who is running it. I know that all the users using the same user name "cognos" to connect to our database and my only hope is hostname column resulting from running the onstat -g ses |grep cognos IBM Informix Dynamic Server Version 11.50.FC3W1 -- On-Line (Prim) -- Up 01:23:18 -- 3294200 Kbytes session #RSAM total used dynamic id user tty pid hostname threads memory memory explain 6453 cognos WOCAMPO- 4300 msutton- 1 155648 125872 off 6273 cognos NTIKHONE 15648 imcphers 1 462848 460120 off My question is can I use tty or hostname to find the person or computer running the guilty query? Thanks for your time. Regards, Masoud.

Perhaps a long shot but try associating the TTY to previous logins. If users login with a different name from the same device (PC?) you might be able to find where the user is located and start tracing from there. A sniffer on the newtwork might be helpful.