Couldn't connect to Redshift database with redash of EC2 AMI


#1

Now, I try to connect to Amazon Redshift database with Redash of EC2 AMI. I successed to login with EC2 instance. But does not work well.
Error message said “Connection Test Failed: could not send startup packet: Resource temporarily unavailable”.
I suspect that the cause of this problem is setup of IAM role. Could you teach me how to resolve this trouble ?