Install DataStax Enterprise 6.8 using the binary tarball

These instructions apply to all versions of DSE 6.8. Review specific changes in the DSE 6.8 Release notes.

A DSE binary tarball enables:

  • DSE to run as a standalone process.

  • A user to install DSE with or without root permissions.

A deployment of DSE creates a cassandra user in the database. Change the default cassandra user before you move to a production environment; otherwise, it is a security risk. For more information, see Create a new superuser account for your database.

Default configuration files location

The default location of the spark-env.sh file depends on the type of installation:

Package installations

/etc/dse/spark/spark-env.sh

Tarball installations

installation_location/resources/spark/conf/spark-env.sh

The location of the cassandra.yaml file depends on the type of installation:

Package installations

/etc/dse/cassandra/cassandra.yaml

Tarball installations

installation_location/resources/cassandra/conf/cassandra.yaml

Prerequisites

The following requirements must be met before you install DSE 6.8 using the binary tarball:

Hardware requirements

See Recommended production settings.

Download and deploy DataStax Enterprise (DSE) 6.8

End User License Agreement (EULA). By downloading this DataStax product, you agree to the terms of the EULA.

  1. Verify that you have installed a supported version of Java:

    • Terminal window command

    • OpenJDK sample result

    • Oracle Java sample result

    java -version
    openjdk version "1.8.0_242"
OpenJDK Runtime Environment (build 1.8.0_242-b09)
OpenJDK 64-Bit Server VM (build 25.242-b09, mixed mode)
    java version "1.8.0_241"
Java(TM) SE Runtime Environment (build 1.8.0_241-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.241-b13, mixed mode)

    DataStax recommends the latest build of a Technology Compatibility Kit (TCK) Certified OpenJDK version 8.

    If the output shows that OpenJDK 8 or Oracle Java 8 is not installed, see Installing the JDK.

  2. From a terminal window, install the libaio package that matches your environment:

    • RHEL platform

    • Debian platform

    sudo yum install libaio
    sudo apt-get install libaio1

  3. Download and extract the binary tarball files manually or use curl:

    • Manual download and extract

    • curl download and extract

    1. Download DataStax Enterprise.

    2. Extract the binary tarball files into the directory of your choice:

      tar -xzvf dse-6.8.x-bin.tar.gz

      During the manual method, the shell history retains your password. To avoid this security issue, use curl with its --netrc or --netrc-file option.

    Latest version:

    curl -L https://downloads.datastax.com/enterprise/dse.tar.gz | tar xz

    Earlier versions:

    curl -L https://downloads.datastax.com/enterprise/dse-version_number-bin.tar.gz | tar xz

    The command downloads and extracts the files into the 6.8 directory. Start DSE from this installation directory and store logs and data there, or define your own locations.

  4. Use either the default data and logging directory locations, or define your own directory locations:

    • Default directory locations

    • Define your own directory locations

    To use the default data and logging directory locations, create and change ownership for the following:

    • /var/lib/cassandra

    • /var/log/cassandra

    sudo mkdir -p /var/lib/cassandra; sudo chown -R $USER:$GROUP /var/lib/cassandra &&
sudo mkdir -p /var/log/cassandra; sudo chown -R $USER:$GROUP /var/log/cassandra

    1. In the installation location, make the directories for data and logging directories. For example:

      mkdir dse-data &&
cd dse-data &&
mkdir data &&
mkdir commitlog &&
mkdir saved_caches &&
mkdir hints &&
mkdir cdc_raw

    2. Change to the directory that contains the cassandra.yaml file:

      cd installation_location/resources/cassandra/conf

    3. Update the following lines in the cassandra.yaml file to match the custom locations:

      data_file_directories:
  - full_path_to_installation_location/dse-data/data
  commitlog_directory: full_path_to_installation_location/dse-data/commitlog
  saved_caches_directory: full_path_to_installation_location/dse-data/saved_caches
  hints_directory: full_path_to_installation_location/dse-data/hints
  cdc_raw_directory: full_path_to_installation_location/cdc_raw

  5. To store logs and data in the installation location, use the environment variable CASSANDRA_LOG_DIR to specify the location of the logs directory:

    cd dse-6.8.x
CASSANDRA_LOG_DIR=`<pwd>`/logs bin/dse cassandra

  6. Apply additional configurations to your DSE installation:

  7. Optional: To use DSE analytics, choose either the default Apache Spark™ data and logging directory locations or define your locations:

    • Default directory locations

    • Define your own Spark directory locations

    To use the default Spark directory locations, create and change ownership for the following:

    • /var/lib/dsefs

    • /var/lib/spark

    • /var/log/spark

      sudo mkdir -p /var/lib/dsefs; sudo chown -R $USER:$GROUP /var/lib/dsefs &&
sudo mkdir -p /var/lib/spark; sudo chown -R $USER:$GROUP /var/lib/spark &&
sudo mkdir -p /var/log/spark; sudo chown -R $USER:$GROUP /var/log/spark &&
sudo mkdir -p /var/lib/spark/rdd; sudo chown -R $USER:$GROUP /var/lib/spark/rdd  &&
sudo mkdir -p /var/log/spark/master; sudo chown -R $USER:$GROUP /var/log/spark/master  &&
sudo mkdir -p /var/log/spark/alwayson_sql; sudo chown -R $USER:$GROUP /var/log/spark/alwayson_sql  &&
sudo mkdir -p /var/lib/spark/worker; sudo chown -R $USER:$GROUP /var/lib/spark/worker

    1. In the installation_location directory where you extracted DSE, make the directories for data and logging directories. For example:

      mkdir dsefs &&
mkdir spark &&
cd spark &&
mkdir log &&
mkdir rdd &&
mkdir worker &&
cd log &&
mkdir worker &&
mkdir master &&
mkdir alwayson_sql

    2. Change to the directory that contains the spark-env.sh file:

      cd installation_location/resources/spark/conf

    3. Uncomment and update the following lines in the spark-env.sh file:

      export SPARK_WORKER_DIR="full_path_to_installation_location/spark/worker"
export SPARK_EXECUTOR_DIRS="full_path_to_installation_location/spark/rdd"
export SPARK_WORKER_LOG_DIR="full_path_to_installation_location/spark/log/worker"
export SPARK_MASTER_LOG_DIR="full_path_to_installation_location/spark/log/master"
export ALWAYSON_SQL_LOG_DIR="full_path_to_installation_location/spark/log/alwayson_sql"

    4. Change to the directory that contains the dsefs_options file:

      cd installation_location/resources/dse/conf

    5. Uncomment and update the DSEFS directory in dse.yaml:

      work_dir: full_path_to_installation_location/dsefs

      DSE 6.8 is ready for additional configuration. See Next Steps.

  8. Single-node cluster installations only:

    1. Start DSE from its installation directory, where the installation directory is the directory where you installed DSE.

      bin/dse cassandra

      For other standalone start options, see Starting DataStax Enterprise as a standalone process.

    2. Verify that DSE is running from the installation directory:

      • Nodetool command

      • Results using vnodes

      • Results not using vnodes

      bin/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
      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

Next Steps

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