Re: 2 node Hazelcast Cluster EC2

Maybe use IP addresses instead of the DNS names with <hostname>:

<join>

    <multicast enabled="false"/>

    <tcp-ip enabled="true">

        <hostname>192.168.1.84:5701</hostname>

        <hostname>192.168.1.85:5701</hostname>

    </tcp-ip>

    <aws enabled="false"/>

</join>

<interfaces enabled="true">

    <interface>192.168.1.84</interface>

</interfaces>

these are just example IP addresses, you will need to get the correct ones from the AWS console.

Each OpenFire instance needs to connect to your mysql instance with correct securty group setting.