Connection Timed Out - Db - Codeigniter

Question

I am trying to connect to a db from my ec2 instance. It works fine on my local-dev machine. With the same credentials though on my ec2 instance it throws this error. How would I bump up the timeout connection w/ CodeIgniter 3?:

A PHP Error was encountered

Severity: Warning

Message: mysqli::real_connect(): (HY000/2002): Connection timed out

Filename: mysqli/mysqli_driver.php

Line Number: 161

Backtrace:

File: /opt/workspace/api.my_app.com/index.php
Line: 292
Function: require_once

Unable to connect to your database server using the provided settings.

Filename: core/CodeIgniter.php

Line Number: 500

Answer 1

Here are the places I would check:

• EC2 security group rules for IN traffic - it's possible your EC2 instance's IP address isn't being allowed, while your local-dev IP address is. This is especially possible if you're using RDS - make sure port 3306 is open to IN traffic on the RDS from EC2's IP address.

• if MySQL is installed directly on the EC2 server (I wouldn't recommend this for large traffic use cases!), check your settings in application/config/database.php to make sure you're using the right credentials. In this case, it kind of sounds like the DB HOST is misconfigured - if the IP address is wrong, it'll time out on the connection.