I have a situation where I'd like to have the standard compositeId router in place for a collection. But, I'd like certain documents (ACL documents) to be duplicated on each shard in the collection. To achieve the level of access control performance and scalability I'm looking for I need the ACL records to be in the same core as the main documents.
I put together a prototype where the compositeId router accepted implicit routing parameters and it worked in my testing. Before I open a ticket suggesting this approach I wonder what other people thought the best approach would be to accomplish this goal.
