31 lines
755 B
Python
31 lines
755 B
Python
from quorums import *
|
|
|
|
a = Node('a')
|
|
b = Node('b')
|
|
c = Node('c')
|
|
d = Node('d')
|
|
e = Node('e')
|
|
f = Node('f')
|
|
g = Node('g')
|
|
h = Node('h')
|
|
i = Node('i')
|
|
|
|
|
|
def main():
|
|
# TODO(mwhittaker): Add more quorums and tidy up.
|
|
quorum_systems = {
|
|
'majority': QuorumSystem(reads=majority([a, b, c])),
|
|
'read one, write all': QuorumSystem(reads=choose(1, [a, b, c])),
|
|
'write one, read all': QuorumSystem(writes=choose(1, [a, b, c])),
|
|
'3 by 3 grid': QuorumSystem(reads=a*b*c + d*e*f + g*h*i),
|
|
}
|
|
|
|
for name, qs in quorum_systems.items():
|
|
sigma = qs.strategy(read_fraction=0.5)
|
|
print(name)
|
|
print(qs)
|
|
print(sigma)
|
|
print(sigma.load(read_fraction=0.5))
|
|
|
|
if __name__ == '__main__':
|
|
main()
|