Simple implementation of Raft Consensus algorithm

Sample code that demonstrates the working of Raft Consensus.

Build Executable(s)

To build the executables raft_server and raft_client:

cd SimpleRaft/bin
./build.sh

Run the cluster on localhost

To run a 3-node cluster open 4 command Terminal windows - 3 for the server nodes and one for the client.

In Terminal-1 execute the following:

cd SimpleRaft/bin
./n1.sh

In Terminal-2 execute the following:

cd SimpleRaft/bin
./n2.sh

In Terminal-3 execute the following:

cd SimpleRaft/bin
./n3.sh

Determine which of the 3 server nodes in the cluster has been promoted to the Leader. Assuming it is node in Terminal-1 with IP address 127.0.0.1:9001, start the client in Terminal-4 as follows:

cd SimpleRaft/bin
./raft_client 127.0.0.1:9001

Article(s)

• The Raft Consensus Paper
• Understanding Distributed Consensus with Raft