I saw a thread from April 2016 talking about Cassandra and Kubernetes, and have a few follow up questions. It seems that especially after v1.2 of Kubernetes, and the upcoming 1.3 features, this would be a very viable option of running Cassandra on.
My questions pertain to HostIds and Scaling Up/Down, and are related: 1. If a container's host dies and is then brought up on another host, can you start up with the same PersistentVolume as the original container had? Which begs the question would the new container get a new HostId, implying it would need to bootstrap into the environment? If it's a bootstrap, does the old one get deco'd/assassinated? 2. Scaling up/down. Scaling up would be relatively easy, as it should just kick off Bootstrapping the node into the cluster, but what if you need to scale down? Would the Container get deco'd by the scaling down process? or just terminated, leaving you with potential missing replicas 3. Scaling up and increasing the RF of a particular keyspace, would there be a clean way to do this with the kubernetes tooling? In the end I'm wondering how much of the Kubernetes + Cassandra involves nodetool, and how much is just a Docker image where you need to manage that all yourself (painfully) -- --mike
