Installing DataStax Enterprise 5.0 on RHEL-based systems using Yum 

Instructions for installing DataStax Enterprise 5.0 using Yum repositories on RHEL-based systems. Root permissions are required.

Use these instructions for installing DataStax Enterprise on RHEL-based systems using Yum. Root permissions are required. To install earlier versions, see Installing DataStax Enterprise 5.0.x patch releases.

When installed from Yum, DataStax Enterprise runs as a service.

Important: DataStax Enterprise 5.0 uses Apache Cassandra 3.0 and CQL 3.3.

To install on SUSE, use the GUI installer or the binary tarball installation.

Prerequisites

Also see Recommended production settings and the DataStax Enterprise Reference Architecture white paper.

Hardware requirements
Requirement Minimum Production
CPUs 2 16
Memory 8 GB 24 GB
Data directory 20 GB 200 GB
Commit log directory 20 GB 200 GB
Saved caches directory 20 GB 200 GB
Logs directory 20 GB 200 GB
Production requirements depend on the volume of data and workload.

The packaged releases create a cassandra user. When starting DataStax Enterprise as a service, the Cassandra and Hadoop tracker services run as this user. The service initialization script is located in /etc/init.d/dse. Run levels are not set by the package.

Procedure

These steps install DataStax Enterprise. They do not install OpsCenter, DataStax Studio, DataStax Agent, or DevCenter. After installing, you must configure and start DataStax Enterprise.

Note: The latest version of DataStax Enterprise is 5.0.10.

In a terminal window:

  1. Verify that a required version of Java is installed:
    $ java -version

    If not Oracle Java 8, or OpenJDK, see Installing the JDK.

    Important: Package management tools do not install Oracle Java.
  2. Add the DataStax Yum repository to a file called /etc/yum.repos.d/datastax.repo:
    Note: Set the gpgcheck=1 to perform a GPG signature check.
    [datastax] 
    name = DataStax Repo for DataStax Enterprise
    baseurl=https://dsa_email_address:password@rpm.datastax.com/enterprise
    enabled=1
    gpgcheck=0
    where dsa_email_address and password are your DataStax Academy account credentials.
    Attention: Depending on your environment, you might need to replace @ in your email address with %40 and escape any character in your password that is used in your operating system's command line. Examples: \! and \|.
  3. If you have enabled signature verification (gpgcheck=1), import the DataStax Enterprise repository key:
    $ sudo rpm --import https://rpm.datastax.com/rpm/repo_key 
  4. Install the package:
    $ sudo yum install dse-full  ## Installs the latest version of DSE
    $ sudo yum install dse-demos ## Installs the DataStax Enterprise demos

    The latest version of DataStax Enterprise is 5.0.10.

    Note: To install earlier versions, append the version number in the above command. For example: $ sudo yum -y install dse-full-5.0.3-1. To view the available versions, see the Release Notes.

    The DataStax Installer has options to install developer related tools: Javadoc, DataStax Enterprise demos, DataStax Studio, and the DSE Graph Loader.

    DataStax Enterprise is ready for additional configuration.

  5. Optional: Single-node cluster installations only:
    1. If DataStax Enterprise is not already running:
      $ sudo service dse start
      Note: For other start options, see Starting DataStax Enterprise as a service.
    2. Verify that DataStax Enterprise is running:
      Using vnodes:
      $ nodetool status
      Datacenter: Cassandra
      =====================
      Status=Up/Down
      |/ State=Normal/Leaving/Joining/Moving
      --  Address    Load       Tokens  Owns    Host ID                               Rack
      UN  127.0.0.1  82.43 KB   128     ?       40725dc8-7843-43ae-9c98-7c532b1f517e  rack1
      Not using vnodes:
      $ nodetool status
      Datacenter: Analytics
      =====================
      Status=Up/Down
      |/ State=Normal/Leaving/Joining/Moving
      --  Address         Load       Owns    Host ID                               Token                 Rack
      UN  172.16.222.136  103.24 KB  ?       3c1d0657-0990-4f78-a3c0-3e0c37fc3a06  1647352612226902707   rack1

What's next

The location of the cassandra.yaml file depends on the type of installation:
Installer-Services /etc/dse/cassandra/cassandra.yaml
Package installations /etc/dse/cassandra/cassandra.yaml
Installer-No Services install_location/resources/cassandra/conf/cassandra.yaml
Tarball installations install_location/resources/cassandra/conf/cassandra.yaml
The location of the dse.yaml file depends on the type of installation:
Installer-Services /etc/dse/dse.yaml
Package installations /etc/dse/dse.yaml
Installer-No Services install_location/resources/dse/conf/dse.yaml
Tarball installations install_location/resources/dse/conf/dse.yaml