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DHT models in golang. Use gRPC for communication.

gRPC is used for communication between nodes.Chord andKad RPCs are defined astwo different services in protobuf file. And here's an additional service calledDHT,through which clients control DHT node and modify keys in DHT.

Chord is a DHT protocol and algorithm. Here I use SHA-1 as hashing function, and select first16 bits of hashing result as node identifier. You may change it innode/chord.go.

To run tests,

gotest ./node -v -short

For system test (build cluster and stabilize it, usually takes longer time),

gotest ./node -v

To quickly setup a cluster of 50 nodes,

go run ./rpc_cluster

To run a single node,

go run ./rpc_node

To test key modification in cluster (put, query and delete 2000 entries),

go run ./rpc_client

Kademlia is expected to be implemented.