Install DataStax Enterprise (DSE) 6.9 on Debian-based systems with APT

Use these instructions to install DataStax Enterprise (DSE) 6.9 on Debian-based systems using APT. This process also installs the DataStax Agent for use with DSE OpsCenter 6.8. It doesn’t install DSE OpsCenter, DataStax Studio, or DataStax Bulk Loader (DSBulk).

For new deployments, DataStax recommends the latest patch release. If you are scaling an existing deployment, install the same patch release as the existing nodes. For a summary of features and changes in each release, see the DSE 6.9 release notes.

When installed from a package, DSE runs as a service. The service initialization script is located in /etc/init.d/dse. Run levels aren’t set by the package.

When you install DSE, it automatically creates a cassandra user that runs the DSE process. For security reasons, don’t use the default cassandra user in production. After installation, create a new superuser, and then disable the cassandra user.

For other installation options, see Choose an installation method.

Prerequisites

  • Prepare an environment where you want to install DSE, including sufficient hardware, a supported platform, and root or sudo access.

  • Install APT package manager.

  • Install a supported Java 11 runtime: OpenJDK 11 (recommended) or Oracle Java SE 11.0.x (JDK).

    If you install multiple Java versions, set your $JAVA_HOME environment variable to Java 11.

  • To run the CQL shell (cqlsh), install a supported Python version. DataStax recommends 3.8 to 3.11.

  • For production installations and simulated production test environments, review the recommended settings.

    Some settings can be applied before installing DSE. For settings that require a running DSE instance, plan to apply them after the installation.

  • If you plan to use DSE OpsCenter:

    • DSE 6.9 requires DSE OpsCenter 6.8. DSE 6.9 doesn’t support earlier versions.

    • To use DSE OpsCenter Lifecycle Manager (LCM) to automatically manage the Java runtime for DSE clusters, see Manage Java installs and Choose a Java vendor in LCM.

Install DSE 6.9 on Debian-based systems using APT

  1. Install the libaio package. For example:

    • Debian platforms:

      sudo apt-get install libaio1
    • Ubuntu 24.04 and later platforms:

      sudo apt-get install libaio1t64
  2. Find DSE 6.9 on IBM Fix Central:

    1. Go to Fix Central.

    2. In the Product selector field, begin typing IBM DataStax Enterprise, and then select that option from the menu.

    3. In the Release field, select the version that you want to install.

    4. Click Continue.

    5. On the Identify fixes page, click Continue to use the default Browse for fixes option.

    6. On the Select fixes page, select the fix pack (DSE version) you want to install, and then click Continue.

      Depending on the product and version, more fix packs might be available if you set the Platform filter to All, and then click Submit.

    7. If prompted, sign in with your IBMid.

      An IBMid account with MFA enabled is required. If you don’t have one, create an IBMid account. If your organization uses Enterprise Federation (EF) for authentication with corporate credentials, see the IBMid EF documentation.

    8. On the Download options page, select Download using your browser (HTTPS), and then click Continue.

    9. Review the terms and conditions, and then click I agree to activate the download links.

  3. Click the DSE DEB package link to download the file, for example, dse-6.9.15-deb.zip.

  4. Extract the DEB files from the zip file:

    sudo unzip dse-6.9.15-deb.zip

    You can use the package signing public key (dse-deb-signing.pub.key) in the file to set up and verify the DEB packages.

  5. Set up a local APT repository to host the downloaded DSE Debian package.

    For more information, see Setting up a Debian repository.

  6. Add a DataStax repository file called /etc/apt/sources.list.d/datastax.sources.list:

    echo "deb [trusted=yes] file:REPOSITORY_DIRECTORY_PATH ./" | sudo tee -a /etc/apt/sources.list.d/datastax.sources.list

    Replace REPOSITORY_DIRECTORY_PATH with the path to the repository directory.

    The [trusted=yes] option allows APT to use the repository without GPG key verification.

  7. Update the packages:

    sudo apt-get update
  8. Install the DSE packages:

    Specify all packages; otherwise, the installation fails.

    • Install the latest version (6.9.x):

      sudo apt-get install dse-full
    • Install an earlier DSE 6.9.x version:

      sudo apt-get install dse=version_number-1 \
          dse-full=version_number-1 \
          dse-libcassandra=version_number-1 \
          dse-libgraph=version_number-1 \
          dse-libhadoop2-client-native=version_number-1 \
          dse-libhadoop2-client=version_number-1 \
          dse-liblog4j=version_number-1 \
          dse-libsolr=version_number-1 \
          dse-libspark=version_number-1 \
          dse-libtomcat=version_number-1

      For example:

      sudo apt-get install dse=6.9.0-1 \
          dse-full=6.9.0-1 \
          dse-libcassandra=6.9.0-1 \
          dse-libgraph=6.9.0-1 \
          dse-libhadoop2-client-native=6.9.0-1 \
          dse-libhadoop2-client=6.9.0-1 \
          dse-liblog4j=6.9.0-1 \
          dse-libsolr=6.9.0-1 \
          dse-libspark=6.9.0-1 \
          dse-libtomcat=6.9.0-1
    • Optional: Install the demos:

      Installing the DSE demos is not recommended for production. Only install the demos in development environments to run tutorials.

      sudo apt-get install dse-demos=version_number-1

DSE is ready for additional configuration:

  • For production, be sure to change the cassandra user. Failing to do so is a security risk. See Adding a superuser login.

  • DSE provides several types of workloads (default is transactional). See startup options for service or stand-alone installations.

  • Next steps provides links to related tasks and information.

Start DSE

Single-node cluster installations only:

  1. Start DSE:

    sudo service dse start
  2. Verify that DSE is running:

    nodetool status
    Result
    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

Was this helpful?

Give Feedback

How can we improve the documentation?

© Copyright IBM Corporation 2026 | Privacy policy | Terms of use Manage Privacy Choices

Apache, Apache Cassandra, Cassandra, Apache Tomcat, Tomcat, Apache Lucene, Apache Solr, Apache Hadoop, Hadoop, Apache Pulsar, Pulsar, Apache Spark, Spark, Apache TinkerPop, TinkerPop, Apache Kafka and Kafka are either registered trademarks or trademarks of the Apache Software Foundation or its subsidiaries in Canada, the United States and/or other countries. Kubernetes is the registered trademark of the Linux Foundation.

General Inquiries: Contact IBM