Deepak Bala sharing his recommendations for running Riak on EC2 based on his own experience:
There are a couple of problems to field when deploying Riak.
The EC2 instances that are provisioned by default change the
following on restart.
- Private IP address
- Public IP address
- Private DNS
- Public DNS
- EBS instances provide stable durable storage while Ephemeral
storage provides for better predictable performance at the cost of
losing data on restarts.
Original title and link: Deploying Riak on EC2 - What to Pick? ( ©myNoSQL)