Install Redis on the GE Digital Redis Servers

Before You Begin

  • Make sure that you have sudo privileges on Linux.

About This Task

This topic describes how to install Redis on the Linux-based GE Digital Redis servers.
Note: The last supported Redis version for Windows contains Common Vulnerabilities and Exposures (CVE). Therefore, we recommend that you install Redis on a Linux server.

Procedure

  1. Log in to the GE Digital Redis server.
  2. Access the Terminal window, and then run the following commands:
    1. sudo apt-get update
    2. sudo apt-get install redis-server
    Redis and its dependencies are downloaded and installed on the Redis server.
  3. Navigate to the directory /etc/redis/redis.conf, and then access the redis.conf file.
  4. Open the redis.conf file using a text editor (for example, Nano), and then modify the configuration settings as described in the following table:
    Configuration OptionDescription
    notify-keyspace-eventsSpecify EA against the configuration option.
    bindSpecify the IP address of the Redis server on which you installed Redis.
    requirepassSpecify the password for the Redis connections.
    Note: You must set a complex password string that contains random characters to ensure that the connections are secured. In a high-availability configuration setup, you must use the same password for all the servers.
    masterauthSpecify the same password that you specified for the requirepass configuration option.
    Note: In a high-availability configuration setup, the password is used to authenticate the Redis nodes with the primary Redis server, and then the nodes and the primary Redis server are connected.
    slaveofIn a high-availability configuration setup, if the Redis server is defined as a replica of the primary Redis server, replace the following placeholder text with appropriate values:
    • <masterip>: Replace with the IP address of the primary Redis server.
    • <masterport>: Replace with the port (that is, 6379) of the primary Redis server.
    slave-prioritySpecify the priority as 1 for the replica server.
    Note: The priority is specified as 100 by default. If there are multiple replica servers, specify the priorities for all the replica servers in an incremental order. For example, configure the first server and specify the priority as 1, then specify the priority for the second server as 2, and so on.
    Note: For more information on the configuration options available in the redis.conf file, refer to the Redis documentation.
  5. Run the following command to restart Redis: 
    sudo systemctl restart redis
  6. Run the following command to ensure that the Redis service is running on the Redis server:
    systemctl status redis