EC2 installation

Now I can connect, but I could not understand why.

On my executor’s /etc/hosts I added line:

X.X.X.X dremio-coordinator

And I changed the executor config to:

master: {
  name: dremio-coordinator,
  port: 45678
}
...

Where X.X.X.X is the coordinator’s internal IP. And now the executor can connect to the coordinator.