Skip to main content

Command line tool for PostgreSQL server activity monitoring.

Project description


Command line tool for PostgreSQL server activity monitoring.

Latest PyPI version Lint Tests

pg_activity screenshot


pg_activity requires Python 3.6 or later. It can be installed using pip (available, e.g., as apt install python3-pip on Debian-based distributions):

$ python3 -m pip install pg_activity psycopg2-binary

or directly from your Linux distribution, if available, e.g.:

$ sudo apt install pg-activity

pg_activity requires psycopg2 version 2.8 or higher.


pg_activity works locally or remotely. In local execution context, to obtain sufficient rights to display system informations, the system user running pg_activity must be the same user running postgresql server (postgres by default), or have more rights like root. Otherwise, pg_activity can fallback to a degraded mode without displaying system informations. On the same way, PostgreSQL user used to connect to the database must be super-user. ex:

sudo -u postgres pg_activity -U postgres


pg_activity [options]

    --version             Show program's version number and exit
    -U USERNAME, --username=USERNAME
                          Database user name (default: "postgres").
    -p PORT, --port=PORT  Database server port (default: "5432").
    -h HOSTNAME, --host=HOSTNAME
                          Database server host or socket directory (default:
    -d DBNAME, --dbname=DBNAME
                          Database name to connect to (default: "postgres").
    --blocksize=BLOCKSIZE Filesystem blocksize (default: 4096).
    --rds                 Enable support for AWS RDS.
    --output=FILEPATH     Store running queries as CSV.
    --help                Show this help message and exit.
    --no-db-size          Skip total size of DB.
    --min-duration        Don't display queries with smaller than specified
                          duration (in seconds).
                          Queries display mode. Values: 1-TRUNCATED,
                          2-FULL(default), 3-INDENTED
                          Duration mode. Values: 1-QUERY(default),
                          2-TRANSACTION, 3-BACKEND

Display options, you can exclude some columns by using them :
    --no-database         Disable DATABASE.
    --no-user             Disable USER.
    --no-client           Disable CLIENT.
    --no-cpu              Disable CPU%.
    --no-mem              Disable MEM%.
    --no-read             Disable READ/s.
    --no-write            Disable WRITE/s.
    --no-time             Disable TIME+.
    --no-wait             Disable W.
    --no-app-name         Disable App.


Length of SQL query text that pg_activity reports relies on PostgreSQL parameter track_activity_query_size. Default value is 1024 (expressed in bytes). If your SQL query text look truncated, you should increase track_activity_query_size.

Interactives commands

Key Action
r Sort by READ/s, descending
w Sort by WRITE/s, descending
c Sort by CPU%, descending
m Sort by MEM%, descending
t Sort by TIME+, descending
T Change duration mode: query, transaction, backend
Space Pause on/off
v Change queries display mode: full, indented, truncated
UP/DOWN Scroll processes list
k/j Scroll processes list
q Quit
+ Increase refresh time. Maximum value : 5s
- Decrease refresh time. Minimum Value : 0.5s
F1/1 Running queries list
F2/2 Waiting queries list
F3/3 Blocking queries list
h Help page
R Refresh
D Refresh Database Size (including when --no-dbzise option applied)

Navigation mode

Key Action
UP/k Move up the cursor
DOWN/j Move down the cursor
K Terminate the current backend/tagged backends
C Cancel the current backend/tagged backends
Space Tag or untag the process
q Quit
Other Back to activity


I can't see my queries only TPS is shown

pg_activity scans the view pg_stat_activity with a user defined refresh time comprised between O.5 and 5 seconds. It can be modified in the interface with the + and - keys. Any query executed between two scans won't be displayed.

What is more, pg_activity uses different queries to get :

  • settings from pg_settings
  • version info using version()
  • queries and number of connections from pg_stat_activity
  • locks from pg_locks
  • tps from pg_database using pg_stat_get_db_xact_commit() and pg_stat_get_db_xact_rollback()
  • and more ( eg : pg_cancel_backend() and pg_terminate_backend() )

Thoses queries cannot be seen in the query tab because all queries issued from the pg_activity backend are considered as noise and are not displayed . On the other hand, the transactions used to get the info for pg_activity's reporting are still accounted for by postgres in pg_stat_get_db_xact_commit() and pg_stat_get_db_xact_commit(). Therefore pg_activity will display a non zero TPS even with no activity on the database, and/or no activity displayed on screen.

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for pg-activity, version 2.2.1
Filename, size File type Python version Upload date Hashes
Filename, size pg_activity-2.2.1-py3-none-any.whl (50.2 kB) File type Wheel Python version py3 Upload date Hashes View
Filename, size pg_activity-2.2.1.tar.gz (285.0 kB) File type Source Python version None Upload date Hashes View

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring DigiCert DigiCert EV certificate Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page