Hi,
We operate several Cassandra clusters in various geographies. We are in the process of extending this cluster into an "unfriendly" geography where we may be forced not to trust anything. I obviously don't want to "pollute" my main DC's with potential fraudulent writes, so I'm looking for a way where I can read from a local DC, but never write into this local DC. My application can cache data and it can sanity check data before it is being written into Cassandra, but I obviously want to make sure that NOBODY can write into this DC unless 1) it comes from my own application, or 2) it is being replicated from a remote DC. Is this scenario somehow possible? Is there a one-way sync option? Or a read-only option? Thanks for any pointers Andreas