Hi - Thanks for the response. I'm on solaris so the ps ax doesn't work for me. I think the equivalent is ps -ef which shows: postgres 6939 22678 0 15:49:49 ? 1:33 /services/8.3.5/bin/postgres -D /services/pgdata2 postgres 22678 16072 0 Aug 06 ? 5:22 /services/8.3.5/bin/postgres -D /services/pgdata2 postgres 5074 22678 0 Aug 12 ? 710:08 /services/8.3.5/bin/postgres -D /services/pgdata2 postgres 8677 22678 0 Aug 13 ? 894:39 /services/8.3.5/bin/postgres -D /services/pgdata2 postgres 8347 22678 0 Aug 25 ? 357:27 /services/8.3.5/bin/postgres -D /services/pgdata2 postgres 343 22678 0 Aug 13 ? 368:30 /services/8.3.5/bin/postgres -D /services/pgdata2 postgres 8678 22678 0 Aug 13 ? 695:15 /services/8.3.5/bin/postgres -D /services/pgdata2 postgres 24793 22678 0 Aug 12 ? 2048:13 /services/8.3.5/bin/postgres -D /services/pgdata2 postgres 22690 22678 0 Aug 06 ? 106:15 /services/8.3.5/bin/postgres -D /services/pgdata2 postgres 22686 22678 0 Aug 06 ? 3:09 /services/8.3.5/bin/postgres -D /services/pgdata2 postgres 22691 22678 0 Aug 06 ? 1145:42 /services/8.3.5/bin/postgres -D /services/pgdata2 postgres 350 22678 0 Aug 13 ? 262:39 /services/8.3.5/bin/postgres -D /services/pgdata2 postgres 16593 22678 0 Aug 12 ? 731:57 /services/8.3.5/bin/postgres -D /services/pgdata2 postgres 22688 22678 0 Aug 06 ? 104:59 /services/8.3.5/bin/postgres -D /services/pgdata2 If I'm wrong about the ps commands, please correct me. When I cross reference this against pg_stat_activity, 5 of them don't show up, and a top shows the same processes using 0% cpu but almost a gig of memory. Are these internal postgres processes that don't make a connection? Mija -----Original Message----- From: Scott Marlowe [mailto:scott.marlowe@xxxxxxxxx] Sent: Thursday, September 03, 2009 7:54 PM To: Lee, Mija Cc: pgsql-admin@xxxxxxxxxxxxxx Subject: Re: postgres processes not reflected in pg_stat_activity On Thu, Sep 3, 2009 at 5:26 PM, Lee, Mija<mija@xxxxxxxxxx> wrote: > Hello: > I have a server that has many more postgres processes (postgres -D > <datadir>, owned by postgres, listed with an ps -ef) than connections in > pg_stat_activity. How can I find out what those processes are? > I have been going through the docs and found a reference to if the > autovacuum launcher should show up in pg_stat_activity, but it looks > like that was implemented in 8.3. > I'm running 8.3.5 on solaris 10. > Thanks so much for the help! > Mija What does: $ ps ax|grep postgres say? I get something like this at idle: 312 pts/0 S+ 0:00 /usr/lib/postgresql/8.3/bin/psql 313 ? Ss 0:00 postgres: smarlowe smarlowe [local] idle 2784 ? S 0:01 /usr/lib/postgresql/8.3/bin/postgres -D /var/lib/postgresql/8.3/main -c config_file=/etc/postgresql/8.3/main/postgresql.conf 2787 ? Ss 0:03 postgres: writer process 2788 ? Ss 0:02 postgres: wal writer process 2789 ? Ss 0:00 postgres: autovacuum launcher process 2790 ? Ss 0:00 postgres: stats collector process 32621 pts/1 S+ 0:00 grep postgres -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin