I'm investigating an issue with DB connections being left open indefinitely, causing problems on the DB server. How do I see currently open connections to a PostgreSQL server, particularly those using a specific database? Ideally I'd like to see what command is executing there as well. Basically, I'm looking for something equivalent to the "Current Activity" view in MSSQL.
from PostgreSQL 9.0 on you will even see the name of the application causing the problem. maybe this is helpful for future checks.– postgresql007Apr 5, 2010 at 18:19
OK, got it from someone else. This query should do the trick:
select * from pg_stat_activity where datname = 'mydatabasename';
See also pg-top, which acts like top except it shows postgres activity.
- Install pg-top (in Debian, the package is called "ptop").
- Become the postgres user (e.g.
sudo su postgres)
So hard to find a windows executable. You (almost) never have the full GCC suite or Mingw on a Windows server (not my choice, don't blame me). May 22, 2019 at 15:29
@oligofren Running Postgresql on Windows is a bit of an adventure, if for no other reason than that so many of the utilities and tools are written for Linux. May 22, 2019 at 15:45
The link is dead.– RonJohnMar 7 at 17:38
@RonJohn I fixed the link. Thank you! Mar 7 at 18:33
Reference taken from this article.
SELECT pid ,datname ,usename ,application_name ,client_hostname ,client_port ,backend_start ,query_start ,query FROM pg_stat_activity WHERE state <> 'idle' AND pid<>pg_backend_pid();
stateis not available in
pg_stat_activityprior to PostgreSQL 9.2. May 3, 2016 at 3:27
Two ways to monitor in Ubuntu 18.04, just for reference
$ sudo apt-get install ptop $ pg_top # similar to top as others mentioned
$ sudo apt-get install pgadmin4 pgadmin4-apache2 # type in password and use default url $ pgadmin4
In the dashboard, check the total/active as
PostgreSQL ASH Viewer (PASH Viewer) provides graphical view of active session history data. https://github.com/dbacvetkov/PASH-Viewer It's free and open source.
DBeaver is also showing the active/idle/total server sessions very nicely.