Creates a Redis client that consistently shards by key using sha1
const shardedClient = new ShardedRedisClient([{
host: 'box1.redis',
port_range: [6370, 6372]
}, {
host: 'box2.redis',
port_range: [10000]
}, {
host: 'box3.redis',
port_range: [6379, 6380],
slaveHosts: ['box3.redis.slave1', 'box3.redis.slave2'],
readPreference: 'slave' // <- force read slave on this set
}]);
Represents a 6-client sha1 HashRing in the following order:
[
'box1.redis:6370',
'box1.redis:6371',
'box1.redis:6372',
'box2.redis:10000',
'box3.redis:6379', // slaves: 'box3.redis.slave1:6379', 'box3.redis.slave2:6379'
'box3.redis:6380', // slaves: 'box3.redis.slave1:6380', 'box3.redis.slave2:6380'
]
const shardedClient = new ShardedRedisClient([{ host: 'localhost', port_range: [3000] }])
Represents a 1-client (unsharded) HashRing that is only useful in development: ['localhost:3000']
Use with slaves: shardedClient.slaveOk()
If a slave doesn't exist for a given client, nothing changes.
Also, slaveOk() only affects read-only commands.
Pull requests are welcome, please open an issue first.
Run tests using...
$ npm test
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