Created
September 18, 2012 22:01
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simple crc shard for redis client in python
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import redis | |
import binascii | |
import md5 | |
s0 = redis.Redis(port=6379) | |
s1 = redis.Redis(port=6380) | |
s2 = redis.Redis(port=6381) | |
s3 = redis.Redis(port=6382) | |
servers = [s0, s1, s2, s3] | |
def sharded_get(key): | |
i = binascii.crc32(key) % len(servers) | |
client = servers[i] | |
print "key: %s - index: %d - servers: %s" % (key, i, servers[i]) | |
return client.get(key) | |
sharded_get('test') | |
sharded_get('test1') | |
sharded_get('test10') | |
sharded_get('test100') |
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