We have build our apigee planet in amazon, and our instances are spread across two AZs in a single region. We have cassandra members1 & 3 in AZ1 with cassandra member 2 in AZ2. Today it seems our cassandra instances were unable for about 6 minutes in AZ, but cassandra member 2 was up the entire time. We found errors from the message processing saying it couldn't find data for our API keys. Looking further at the cassandra ring replicas seems to be set to 2 instead of 3.
Can someone from apigee confirm replicas is set to 2 by default? We also want to make sure each cassandra member has a copy of our data. What is the process for changing it to 3?