Redis sorted set data type makes it trivial to generate a scalable real-time leaderboard

an approximate membership query filter

probabilistic data structure to check membership of an item in constant time and space

1. Hashed IP addresses are used to assign a position for the nodes 2. Hash ring is traversed until a node is found

1. create a unique paste ID 2. encode the paste ID 3. persist the paste ID in SQL store and paste in the object storage