Introduction

Fundamental facility to keep service high available.

Architecture

Each node in the cluster joins gossip network.

In advance, we select 3 nodes as a central group via configuration file.

The 3 selected nodes compose a raft group, and the registered service would be running on raft leader.

How to use agent

./agent -node-id=1 \
        -raft-addr=127.0.0.1:9001 \
        -raft-data-dir=/tmp/raft/1 \
        -serf-addr=127.0.0.1:10001 \
        -serf-cluster=127.0.0.1:10001,127.0.0.1:10002,127.0.0.1:10003

./agent -node-id=2 \
        -raft-addr=127.0.0.1:9002 \
        -raft-data-dir=/tmp/raft/2 \
        -serf-addr=127.0.0.1:10002 \
        -serf-cluster=127.0.0.1:10001,127.0.0.1:10002,127.0.0.1:10003

./agent -node-id=3 \
        -raft-addr=127.0.0.1:9003 \
        -raft-data-dir=/tmp/raft/3 \
        -serf-addr=127.0.0.1:10003 \
        -serf-cluster=127.0.0.1:10001,127.0.0.1:10002,127.0.0.1:10003

TODO

• Integrate service with consensus
• Configured via toml file
• More concise framework and library API
• Comments for implementation
• Member tag initialization
• Package components seperation