CODEWITHSUNDEEP
heroku
Jan Wrobel
Jan Wrobel

Reputation: 7109

Why Heroku DB always reports at least 3 open connections?

My Heroku production database always reports at least 3 open connections:

$ heroku pg:info
Plan:        Crane
[...]
Connections: 3
[...]

The 3 connections are there even if I scale web dynos to 0 (I don't use worker dynos).

What is the source of these connections?

Upvotes: 1

Views: 64

Answers (1)

hgmnz
hgmnz

Reputation: 13306

I work on Heroku Postgres. Those connections are used by various monitoring systems that help us keep your database alive.

You can heroku pg:psql in, and run SELECT * from pg_stat_activity to see what connections are currently established.

Upvotes: 3

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