I didn't mean to imply that the bottleneck was due to Oracle. I was saying the exact same thing you are saying - it's due to memory or CPU limitations in their

I didn't mean to imply that the bottleneck was due to Oracle. I was saying the exact same thing you are saying - it's due to memory or CPU limitations in their application server, which forces them to heavily shard. If Redis can help them scale from the small shard to larger shards that support more players in an area, it might be interesting.