netdata_netdata/collectors/python.d.plugin/postgres/README.md

PostgreSQL monitoring with Netdata

Collects database health and performance metrics.

Requirements

• python-psycopg2 package. You have to install it manually.

Following charts are drawn:

1. Database size MB

   • size

2. Current Backend Processes processes

   • active

3. Current Backend Process Usage percentage

   • used
   • available

4. Write-Ahead Logging Statistics files/s

   • total
   • ready
   • done

5. Checkpoints writes/s

   • scheduled
   • requested

6. Current connections to db count

   • connections

7. Tuples returned from db tuples/s

   • sequential
   • bitmap

8. Tuple reads from db reads/s

   • disk
   • cache

9. Transactions on db transactions/s

   • committed
   • rolled back

10. Tuples written to db writes/s

-   inserted
-   updated
-   deleted
-   conflicts

11. Locks on db count per type

    • locks

Configuration

Edit the python.d/postgres.conf configuration file using edit-config from the Netdata config directory, which is typically at /etc/netdata.

cd /etc/netdata   # Replace this path with your Netdata config directory, if different
sudo ./edit-config python.d/postgres.conf

When no configuration file is found, the module tries to connect to TCP/IP socket: localhost:5432.

socket:
  name         : 'socket'
  user         : 'postgres'
  database     : 'postgres'

tcp:
  name         : 'tcp'
  user         : 'postgres'
  database     : 'postgres'
  host         : 'localhost'
  port         : 5432

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