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About MapleJuice

MapleJuice, as its name infers, is a MapReduce-like distributed computing framework. The framework includes two parts: a simple distributed file system and a MapleJuice engine built on top of Go socket and rpc. This project also contains implementations of a gossip-style membership protocol and a quorum-based leader election protocol that help maintain the topology of the service cluster.

Running the program

  1. Install Go

  2. Clone and cd into project folder

  3. Run the setup script on each node with sh setup.sh <server-id> (server id can be any number and is used only for easy identification when retrieving logs from remote servers)

  4. Make necessary changes to the generated config.txt file under home directory as indicated below.

  5. Run the program with go run main.go.

  6. Follow the prompts to finish starting up services.

  7. Enter a command or type help for a list of available commands

Configuration

  1. By default the log server (used for retrieving logs from remote machines) will run on port 8000. To use a different port, update the LOG_SERVER_PORT=<port> entry in /UserHome/config.txt
  2. LEADER_ELECTION_QUORUM_SIZE and REPLICATION_FACTOR should be correctly configured according to cluster size and fault-tolerance guarantees.
  3. Set IS_INTRODUCER=TRUE for the introducer node and set the INTRODUCER_IP for other node correspondingly.