Database: JIRA couldn't connect to your database

[Rona Schachter]

 I am trying yo upgrade from version 8.14.1 to 8.22.0 and I am getting this error. Followed these steps, all seems fine 
https://confluence.atlassian.com/jirakb/resolve-database-connection-errors-during-jira-server-startup-872262124.html

Database: JIRA couldn't connect to your database

JIRA failed to establish a connection to your database.
This could be because:

• Your database isn't running
• The configuration of your dbconfig.xml file is incorrect (user, password, or database URL etc.)
• There is a network issue between JIRA and your database (e.g. firewall, database doesn't allow remote access etc.)

[Dirk Ronsmans]

Do you see anything more specific in the log file?

The splash screen doesn't really give you much info to work with but often the log file does.

[Rona Schachter]

Where exactly can I find the log files?

[Rona Schachter]

.

[Radek Dostál]

You told us what it could be, but have not given as any proof that any of those are false.

[Radek Dostál]

Assuming you did follow the kba suggestions and assuming all of the checks were done right. What's the Jira version, db type and version, and jdbc connector?

[Rona Schachter]

Jira Version 8.14.1

[Radek Dostál]

And this database is remote, not on the same machine as Jira?

Can you take a look here and see if perhaps this might help https://www.digitalocean.com/community/tutorials/how-to-allow-remote-access-to-mysql

I'm thinking perhaps Jira is running, db is running, and you can ping them, but when Jira is trying to connect to the db it ignores it because it only listens to local connections.

[Rona Schachter]

On the same machine, the DB is local