seafooler/bdt

Description

An implementation of Bolt-Dumbo Transformer in Golang, which is published in CCS'22 with the name "Bolt-dumbo transformer: Asynchronous consensus as fast as the pipelined bft"

Usage

1. Machine types

Machines are divided into two types:

Workcomputer: only used to configure replicas at the initial stage, particularly via ansible tool
Replicas: run daemons of BDT, communicate with each other via P2P model

Only one workcomputer is needed, while the number of replicas is n=3f+1. A machine can be a workcomputer and a replica simultaneously.

In the default configuration, we assume f=1, namely 4 replicas are needed.

2. Precondition

Recommended OS releases: Ubuntu 18.04 (other releases may also be OK)
Go version: 1.17+
Python version: 3.6.9+

3. Steps to run BDT

3.1 Install ansible on the workcomputer

Commands below are run on the workcomputer.

sudo apt install python3-pip
sudo pip3 install --upgrade pip
pip3 install ansible
# add ~/.local/bin to your $PATH
echo 'export PATH=$PATH:~/.local/bin:/usr/local/go/bin' >> ~/.bashrc
source ~/.bashrc

3.2 Login without passwords

Enable workcomputer to login in servers without passwords.

Commands below are run on the work computer.

# Generate the ssh keys (if not generated before)
ssh-keygen
ssh-copy-id -i ~/.ssh/id_rsa.pub $IP_ADDR_OF_EACH_SERVER

3.3 Generate configurations

Generate configurations for each server.

Commands below are run on the workcomputer.

Change id_ip, id_p2p_port, and id_name in file config_gen/config_template.yaml
Enter the directory config_gen, and run go run main.go

3.4 Build the executable file

Build the executable file on the workcomputer. Enter the directory of bdt

# Pull dependencies
go mod tidy
# Build
go build .

3.5 Configure servers via Ansible tool

Change the hosts file in the directory ansible, the hostnames and IPs should be consistent with config_gen/config_template.yaml.

# Enter the directory `ansible`
ansible-playbook conf-server.yaml -i hosts

3.6 Run BDT servers via Ansible tool

# clean the stale processes and testbed directories
ansible-playbook clean-server.yaml -i hosts
# run BDT servers
ansible-playbook run-server.yaml -i hosts

seafooler / bdt