>Thomas Mack <mack@xxxxxxxxxxxxxxxx> writes: >> Is there any chance to monitor the current transactions and abort them, >> in case of need? > >Sure, just SIGINT whichever backend you want to cancel its query. >Use "ps" or pg_stat_activity to figure out the right PID to kill. > I don't have a pg_stat_activity on this 7.4.6, so using ps gives me: postgres@is20 ~ 4 > ps -ef | grep postmaster postgres 4499 4498 0 08:59:18 ? 0:04 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 23268 4498 0 12:50:39 ? 0:03 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 4713 4498 0 09:25:05 ? 0:05 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 20836 4498 0 15:22:51 ? 0:02 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 20859 4498 0 18:51:48 ? 0:01 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 25116 4498 0 13:40:26 ? 0:04 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 12050 4498 0 21:57:30 ? 0:00 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 4498 4489 0 08:59:18 ? 0:47 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 18589 4498 0 21:09:09 ? 0:00 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 11104 4498 0 21:34:24 ? 0:03 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 4500 4499 0 08:59:18 ? 0:48 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 14684 4498 0 19:46:16 ? 0:00 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 25527 4498 0 13:47:25 ? 0:03 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 13863 4498 0 19:20:56 ? 0:00 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 11910 4498 0 21:54:18 ? 0:00 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 23450 4498 0 12:53:48 ? 0:05 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 24216 4498 0 13:16:27 ? 0:04 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 21584 4498 0 19:08:55 ? 0:01 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 25904 4498 0 13:54:19 ? 0:04 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 17848 4498 0 17:35:52 ? 0:01 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 10893 4498 0 21:28:04 ? 0:00 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 12210 12147 0 22:02:27 pts/22 0:00 grep postmaster postgres 18650 4498 0 21:10:34 ? 0:00 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 1563 4498 0 19:15:38 ? 0:01 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 16993 4498 0 20:26:05 ? 0:08 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 14210 4498 0 19:30:01 ? 0:10 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 14457 4498 0 19:38:37 ? 0:01 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 14030 4498 0 19:23:51 ? 0:01 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 16675 4498 0 20:18:21 ? 0:00 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 14914 4498 0 19:49:00 ? 0:01 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres 17576 4498 0 20:41:26 ? 0:00 /usr/local/pgsql/bin/postmaster -i -p 5356 -o -e postgres@is20 ~ 5 > So, what is what? I will switch to 8.1 later this year, is it better with that version? Best regards, Thomas Mack TU Braunschweig, Institut für Informationssysteme