This guide shows how to install Redis Enterprise Software, which includes several steps:

  1. Plan your deployment
  2. Download the installation package
  3. Prepare to install
  4. Perform the install

Depending on your needs, you may also want to customize the installation.

Here, you’ll learn how to perform each step.

Plan your deployment

Before installing Redis Enterprise Software, you need to:

Download the installation package

To download the installation package for any of the supported platforms:

  1. Go to the Redis Labs download page.
  2. Sign in with your Redis Labs credentials or create a new account.
  3. In the Downloads section for Redis Enterprise Software, select the installation package for your platform then select Go.
Note:
Before you install the Linux package or AWS AMI on an AWS EC2 instance, review the configuration requirements for AWS EC2 instances.

Prepare to install on Linux

Before installing, review these notes:

  • Review the security considerations for your deployment.

  • If you want to use Redis on Flash (RoF) for your databases, review the prerequisites, storage requirements, and other considerations for RoF databases and prepare and format the flash memory.

    Use the prepare_flash script to prepare and format flash memory:

    sudo /opt/redislabs/sbin/prepare_flash.sh

    This script finds unformatted disks and mounts them as RAID partitions in /var/opt/redislabs/flash.

    To verify the disk configuration, run:

    sudo lsblk

  • Disable Linux swap on all cluster nodes.

  • Make sure that you have root-level access to each node, either directly or with sudo.

  • If you require the redislabs UID (user ID) and GID (group ID) numbers to be the same on all the nodes, create the redislabs user and group with the required numbers on each node.

  • When port 53 is in use, the installation fails. This is known to happen in default Ubuntu 18.04 installations in which systemd-resolved (DNS server) is running.

    To work around this issue, change the system configuration to make this port available before installation. Here’s one way to do so:

    1. Run: sudo vi /etc/systemd/resolved.conf
    2. Add DNSStubListener=no as the last line in the file and save the file.
    3. Run: sudo mv /etc/resolv.conf /etc/resolv.conf.orig
    4. Run: sudo ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf
    5. Run: sudo service systemd-resolved restart

  • Make sure that the ports Redis assigns to databases are available; that is, they’re not being used by the operating system or other processes.

    To avoid port collision, we recommend updating /etc/sysctl.conf to include:

    net.ipv4.ip_local_port_range = 30000 65535

Install on Linux

After you download the .tar file installation package, install the package on one of the nodes in the cluster.

To install from the CLI:

  1. Copy the installation package to the node.

    (Optional) Use the GPG key file to confirm authenticity of Ubuntu/Debian or RHEL RPM packages:

    • For Ubuntu:

      1. Import the key with:
      gpg --import <path to GPG key>
      1. Verify the package signature with:
      dpkg-sig --verify <path to installation package>

    • For RHEL:

      1. Import the key with:
      rpm --import <path to GPG key>
      1. Verify the package signature with:
      rpm --checksig <path to installation package>

  2. On the node, change to the directory where the installation package is and extract the installation files:

    tar vxf <tarfile name>

  3. To install, run:

    sudo ./install.sh
    Note:
    • The Redis Enterprise Software files are installed in the default file locations.
    • By default, Redis Enterprise Software runs on the OS as the redislabs user and redislabs group. If needed, you can specify a different user and group during the installation.
    • You must either be logged in as the root user or use sudo to run the install process.

  4. Answer the installation questions when shown to complete the installation process, including the rlcheck installation verification.

    Note:

    To install without answering the installation questions, either:

    • Run ./install.sh -y to answer yes to all of the questions.
    • Use an answer file to answer installation questions automatically.

    When the installation completes successfully, the IP address of the admin console is displayed:

    Summary:
-------
ALL TESTS PASSED.
2017-04-24 10:54:15 [!] Please logout and login again to make
sure all environment changes are applied.
2017-04-24 10:54:15 [!] Point your browser at the following
URL to continue:
2017-04-24 10:54:15 [!] https://<your_ip_here>:8443

    Redis Enterprise Software is now installed on the node.

    Repeat this process for each node in the cluster.

  5. Create or join an existing Redis Enterprise Software cluster.

  6. Create a database.

    For geo-distributed Active-Active replication, create an Active-Active database.

Notes

  • Redis Enterprise Software installation creates the redislabs:redislabs user and group. Assigning other users to the redislabs group is optional. Users belonging to the redislabs group will have permission to read and execute (e.g. use the rladmin status command) but not to write or delete files and directories.

  • Redis Enterprise Software serves a large variety of industries. The common industry standard for permissions is 750 permissions. Reducing the permissions to 700 has not been tested and isn’t supported.

More info and options

If you’ve already installed Redis Enterprise Software, you can also:

More info is available to help with customization and related questions:

Next steps

Now that your cluster is set up with nodes, you can: