def main(num_nodes=10, sim_duration=10, timeout=0.5,
base_latency=0.05, latency_sigma_factor=0.5,
num_faulty_nodes=3, num_slow_nodes=0):
sim_duration = sim_duration # secs
# initial timeout
RoundManager.timeout = timeout # secs
Transport.base_latency = base_latency # 0.05 is half the globe one way
# validators
num_validators = num_nodes
LockSet.eligible_votes = num_validators
validators = range(num_validators)
genesis = mk_genesis(validators)
assert genesis.lockset.is_valid
env = simpy.Environment()
network = SimNetwork(env)
nodes = []
for a in validators:
n = Node(network, validators, a, genesis)
nodes.append(n)
for n in nodes: # connect all nodes for now
for nn in nodes:
n.add_peer(nn)
normvariate_base_latencies(nodes, sigma_factor=latency_sigma_factor)
assert num_faulty_nodes + num_slow_nodes <= num_nodes
add_faulty_nodes(nodes, num_faulty_nodes)
add_slow_nodes(nodes, num_slow_nodes)
for n in nodes:
n.start()
env.run(until=sim_duration)
if False:
print '\n' * 3
print int(env.now), 'resetting one node'
# reset one node and have it sync up
n = nodes[0]
n.consensus_protocol.reset(to_genesis=True)
n.env.send = n.env._send
env.run(until=sim_duration * 4)
if False: # run w/ stopped nodes to check sync
print '\n' * 3
print int(env.now), 'stopping proposals and timeouts'
for n in nodes:
n.consensus_protocol.stopped = True
# fix faulty(hope they sync up)
for n in nodes:
if n.env.send == n.env.wont_send:
n.env.send = n.env._send
env.run(until=sim_duration * 10)
check_consistency(nodes)
return nodes
def test_Block():
genesis = mk_genesis(range(10))
b1 = Block(1, 2, 3, genesis.hash, genesis.lockset)
b2 = Block(1, 2, 3, genesis.hash, genesis.lockset)
assert b1 == b2
def main(num_nodes=10,
sim_duration=10,
timeout=0.5,
base_latency=0.05,
latency_sigma_factor=0.5,
num_faulty_nodes=3,
num_slow_nodes=0):
sim_duration = sim_duration # secs
# initial timeout
RoundManager.timeout = timeout # secs
Transport.base_latency = base_latency # 0.05 is half the globe one way
# validators
num_validators = num_nodes
LockSet.eligible_votes = num_validators
validators = range(num_validators)
genesis = mk_genesis(validators)
assert genesis.lockset.is_valid
env = simpy.Environment()
network = SimNetwork(env)
nodes = []
for a in validators:
n = Node(network, validators, a, genesis)
nodes.append(n)
for n in nodes: # connect all nodes for now
for nn in nodes:
n.add_peer(nn)
normvariate_base_latencies(nodes, sigma_factor=latency_sigma_factor)
assert num_faulty_nodes + num_slow_nodes <= num_nodes
add_faulty_nodes(nodes, num_faulty_nodes)
add_slow_nodes(nodes, num_slow_nodes)
for n in nodes:
n.start()
env.run(until=sim_duration)
if False:
print '\n' * 3
print int(env.now), 'resetting one node'
# reset one node and have it sync up
n = nodes[0]
n.consensus_protocol.reset(to_genesis=True)
n.env.send = n.env._send
env.run(until=sim_duration * 4)
if False: # run w/ stopped nodes to check sync
print '\n' * 3
print int(env.now), 'stopping proposals and timeouts'
for n in nodes:
n.consensus_protocol.stopped = True
# fix faulty(hope they sync up)
for n in nodes:
if n.env.send == n.env.wont_send:
n.env.send = n.env._send
env.run(until=sim_duration * 10)
check_consistency(nodes)
return nodes
def test_Block():
genesis = mk_genesis(range(10))
b1 = Block(1, 2, 3, genesis.hash, genesis.lockset)
b2 = Block(1, 2, 3, genesis.hash, genesis.lockset)
assert b1 == b2
