It would appear that sometimes, when a disconnect a unix stream (ie perl DBI) from postgres in a forceful manner (^C), postgres doesn't appear to notice and keeps processing the transaction rather than aborting it. As an example, I currently see the following open files: postgres postgres 28780 7* unix stream c3653d80 <-> c2d6d7c0 postgres postgres 23751 7* unix stream c2aeda80 <-> c3615540 postgres postgres 12631 7* unix stream c35e3640 <-> c2ac1000 postgres postgres 586 7* unix stream c35ce400 postgres postgres 29011 5* unix stream c2adb900 The last two are: 586 ? Ds 0:00.00 postgres: postgres postgres [local] UPDATE 29011 ttyp0- IW 0:00.00 /usr/pkg/bin/postgres -D /home/postgres/db In this case, it would appear that 586 hasn't noticed anything strange happening. Should it have? Will this problem go away if I use TCP rather than unix streams? Or is this a bug of the variety that when postgres is deep inside an UPDATE, doing lots of disk I/O, it never checks to see if it should abort because the client has gone? Actually, I can see aborting being a bug too...is there a way to control the behaviour here? Darren
