def __init__(self, server, params):
super(ShardedRedisCache, self).__init__(server, params)
self.sharder = HashRing()
for server in self.servers:
client = self.create_client(server)
self.clients[client.connection_pool.connection_identifier] = client
self.sharder.add(client.connection_pool.connection_identifier)
self.client_list = self.clients.values()
def test_make_key_distribution(self):
ring = HashRing()
nodes = set([str(node._node) for node in self.cache.sharder._nodes])
nodes = [
('127.0.0.1', 6379, 15, '/tmp/redis0.sock'),
('127.0.0.1', 6379, 15, '/tmp/redis1.sock'),
('127.0.0.1', 6379, 15, '/tmp/redis2.sock'),
]
for node in nodes:
ring.add(str(node))
n = 50000
counter = Counter(
[ring.get_node(str(i)) for i in range(n)]
)
self.assertLess(
((stddev(counter.values()) / n) * 100.0), 10, counter.values()
)
