With the Redis database created, you are ready to connect to your database to store data. You can use one of the following ways to test connectivity to your database:

  • Connect with redis-cli, the built-in command-line tool
  • Connect with a Hello World application written in Python

Remember we have two member Active-Active databases that are available for connections and concurrent reads and writes. The member Active-Active databases are using bi-directional replication to for the global Active-Active database.


Connecting using redis-cli

redis-cli is a simple command-line tool to interact with redis database.

  1. To use redis-cli on port 12000 from the node 1 terminal, run:

    redis-cli -p 12000
  2. Store and retrieve a key in the database to test the connection with these commands:

    • set key1 123
    • get key1

    The output of the command looks like this:> set key1 123
    OK> get key1
  3. Enter the terminal of node 1 in cluster 2, run the redis-cli, and retrieve key1.

    The output of the commands looks like this:

    $ redis-cli -p 12000> get key1

Connecting using Hello World application in Python

A simple python application running on the host machine can also connect to the database.

Before you continue, you must have python and redis-py (python library for connecting to Redis) configured on the host machine running the container.
  1. In the command-line terminal, create a new file called “redis_test.py”

    vi redis_test.py
  2. Paste this code into the “redis_test.py” file.

    This application stores a value in key1 in cluster 1, gets that value from key1 in cluster 1, and gets the value from key1 in cluster 2.

    import redis
    rp1 = redis.StrictRedis(host='localhost', port=12000, db=0)
    rp2 = redis.StrictRedis(host='localhost', port=12002, db=0)
    print ("set key1 123 in cluster 1")
    print (rp1.set('key1', '123'))
    print ("get key1 cluster 1")
    print (rp1.get('key1'))
    print ("get key1 from cluster 2")
    print (rp2.get('key1'))
  3. To run the “redis_test.py” application, run:

    python redis_test.py

    If the connection is successful, the output of the application looks like:

    set key1 123 in cluster 1
    get key1 cluster 1
    get key1 from cluster 2