Edmundo Robles <edmundo@xxxxxxxxxxxx> writes: > Hi! i have many too long time queries, the oldest is almost 16 > days, so i tried to cancel and terminate with pg_cancel_backend and > pg_terminate_backend but queries is still running. > > STIME ELAPSED ELAPSED %CPU PID COMMAND > jun27 15-23:05:46 1379146 0.3 29660 postgres: argos_admin bdkairos > 127.0.0.1(55605) SELECT > jun27 15-23:05:46 1379146 0.3 29659 postgres: argos_admin bdkairos > 127.0.0.1(55604) SELECT > jun27 15-23:05:46 1379146 0.3 29658 postgres: argos_admin bdkairos > 127.0.0.1(55603) SELECT > jun27 15-23:05:16 1379116 0.3 29909 postgres: argos_admin bdkairos > 127.0.0.1(55767) SELECT > jun27 15-23:04:51 1379091 0.3 30097 postgres: argos_admin bdkairos > 127.0.0.1(55909) SELECT > jun27 15-23:03:49 1379029 0.3 30661 postgres: argos_admin bdkairos > 127.0.0.1(56303) SELECT > ... > What should i do to safely close that queries, before to use kill > command in linux? > > I have Postgres 9.4 running on debian jessie. Try stracing the catatonic backend. You will probably find it hung in a network send like sendv' or somesuch. The client side of such a connection is probably still alive but can't take any more data perhaps due to being resource starved. Fully shutdown such a client if you can locate it. If this is a no-can-do, there's a way to forge a network packet to close the blocked socket which you'll have to Google for if interested. Else you will have to shutdown -m immediate. Sorry. > > > > -- > [uc] > > -- Jerry Sievers Postgres DBA/Development Consulting e: postgres.consulting@xxxxxxxxxxx p: 312.241.7800 -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general