Hi all, First off, thanks for putting out such a great product and documentation. I had a node up and running on CentOs in 10 minutes, and had our C# app communicating with it in 10 more!
Now that I have basic prototyping working, I have a few networking and data center configurations. We will be installing our systems in 2 data centres. One will be in the US, the second will be in New Zealand or Australia. Our system processes data from a satellite network. The data will be sent to the data centre that the user is closest to. North American and EU customers to the US, and all others will go to the NZ/AU servers. I want the data that is written from the different partitioned processing nodes (our c# app servers) to be available in both data centres. I'm assuming I would need an equal number of nodes at each data centre, then use the RackAwareStrategy so that data is replicated across both locations. Both locations would need the same cluster name, is this correct? Is there a way to secure the communication between data centres? Given that they will be on different sides of the world, I can't guarantee a secure channel between them. How is authorization of a new node in a cluster accomplished (if possible)? Is it currently done via firewall and cluster IPs, or can that be managed in Cassandra internally? Is there any sort of management interface for deploying nodes and configuring peers? For ease of administration if I have 10 nodes or more, can I have 2 peer IP address per node in it's configuration, and deploy the nodes in overlapping groups of 3? I'm assuming once a node connects to another, it automatically receives all node information about the cluster, is this correct? Last, are there any tools out there that allow user data mining? We'll obviously need to document how our application persists data well so that external applications can read the data. Our sales and accounting teams use our current MS SQL system to perform some data mining via SQL. Giving them an interface to allow them to query data (in any query language) is a must for our migration. Thanks in advance, Todd
