Redis

Containing all the file necessary in order to do the experiment:

• redis-cluster
• redis-py-cluster
• redis-py
• redis-single

redis-cluster

Containing all the redis servers, 6 nodes, configuration file in order to run a redis cluster.

Installation

$ cd ./redis-cluster/redis
$ make
$ sudo make install

Instructions

• Open 6 terminals, each one for a single node.
• Perform the following command in each terminal:

$ ./redis-cluster/redis-server ./redis-cluster/7000/redis.conf

• After the above configuration

$ ./redis-cluster/redis/src/redis-trib.rb create --replicas 1 127.0.0.1:7000 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 127.0.0.1:7004 127.0.0.1:7005

• The above command line will create 6 nodes in a 3 master - 3 nodes mode.

• NOTE: the 7000 should be replaced as 7001, 7002, 7003, 7004, 7005 as in 6 terminals.

• NOTE: the redis inside redis-cluster is from the unstable repo of redis that is currently under construction but perform cluster feature version of redis.

• The official document can be found here.

• More specific document can be found here

redis-py-cluster

• A python client to interact with redis cluster.
• NOTE: redis-py may require
• Python 3.4.0 not support

Installation

$ cd redis-py-cluster
$ sudo python setup.py install

Instructions

Small sample script that show how to get started with RedisCluster. decode_responses=True is required to have when running on python3.

>>> from rediscluster import StrictRedisCluster
>>> startup_nodes = [{"host": "127.0.0.1", "port": "7000"}]
>>> rc = StrictRedisCluster(startup_nodes=startup_nodes, decode_responses=True)
>>> rc.set("foo", "bar")
True
>>> rc.get("foo")
'bar'

The following imports can be imported from redis package.

• StrictRedisCluster
• RedisCluster
• StrictClusterPipeline
• ClusterPubSub

StrictRedisCluster is based on redis.StrictRedis and RedisCluster has the same functionality as redis.Redis even if it is not directly based on it.

GitHub repo can be found here

redis-py

Python client for redis (not cluster)

Installation

$ cd redis-py
$ sudo python setup.py install

Instructions

>>> import redis
>>> r = redis.StrictRedis(host='localhost', port=6379, db=0)
>>> r.set('foo', 'bar')
True
>>> r.get('foo')
'bar'

GitHub repo can be found here

redis-single

A single redis NoSQL database.

Formal information can be found here