Embodiments of the invention is directed to a method for performing efficient data searches in a distributed computing system. The method may comprise, receiving a first key. The method may further comprise determining a hash map associated with the first key from among a plurality of hash maps. In some examples, the obtained hash map maps a partition of a set of keys to particular index values. The method may further comprise determining an index value associated with a second key using the determined hash map. The method may further comprise determining transaction processing data associated with the first key using the determined index value and providing the transaction processing data. Utilization of the plurality of hash maps may enable a data search to be performed using on-board memory of an electronic device of the distributed computing system.