Problem: Heroku Postgres Database Fatal error too many database connections for role ‘username’
Solution:
1. First install Heroku toolbelt with command
a. sudo snap install heroku –classic
2. Login from command line
a. heroku login
3. Check current database connections
a. heroku pg:info –app application_name
4. Display current processes
a. heroku pg:ps –app application_name
5. Kill connections
a. heroku pg:killall –app application_name
b. heroku pg:kill procpid
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