Csaba Nagy <nagy@xxxxxxxxxxxxxx> writes: > I have right now a locked backend, similar to what I had a few days ago. > It won't answer to pg_cancel_backend. > Is there a way to diagnoze what it is actually doing ? > If you answer, please do it quickly as in max 15 minutes I'll kill -9 > ... This post was pretty much a complete waste of bandwidth then, seeing that pggeneral never has a turnaround time as short as 15 min (it seems to be more like 2 hours today :-(). However, if it happens again, please see what you can learn by attaching to the stuck backend with gdb and getting a stack trace. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 1: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to majordomo@xxxxxxxxxxxxxx so that your message can get through to the mailing list cleanly