How big is each document ? If documents are big, keep each of them as a separate file and store the ids in a database. If documents are small, then you want som

How big is each document ? If documents are big, keep each of them as a separate file and store the ids in a database. If documents are small, then you want something like https://github.com/rockset/rocksdb-cloud https://github.com/rockset/rocksdb-cloud for a building block