When keys are concatenated with a joining symbol, objects can only be retrieved when one posesses all of the joining keys. Hyperspace hashing allows object retrieval when only a subset of the attributes are available.
Although the coordinator is logically centralized, we've got a version in the works that uses Paxos (a consensus algorithm) to distribute the coordinator as well.
For more information check out http://openreplica.org/
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When keys are concatenated with a joining symbol, objects can only be retrieved when one posesses all of the joining keys. Hyperspace hashing allows object retrieval when only a subset of the attributes are available.
Although the coordinator is logically centralized, we've got a version in the works that uses Paxos (a consensus algorithm) to distribute the coordinator as well. For more information check out http://openreplica.org/