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Version: current [25.0.x]

RPM and Tarball Install

Prerequisites​

Download and install the required Java version.

RPM Installation​

Perform these steps on each node of your Dremio cluster:

  1. Download and install Dremio via RPM. 

    $ sudo yum install dremio-<VERSION>.rpm

  2. (Optional) Enable dremio to start at boot.

    $ sudo chkconfig --level 3456 dremio on

  3. Configure Dremio. See Dremio Configuration for more information.

Default Configuration​

The following configurations are created by default when you install Dremio using the RPM package.

Software/FileLocation
Software location/opt/dremio
dremio.conf configuration file/etc/dremio/dremio.conf
dremio-env environment configuration file/etc/dremio/dremio-env
Local path (for data location)/var/lib/dremio
Log directory/var/log/dremio
PID files directory/var/run/dremio

Changing the Dremio User and Group​

The generic installation steps assume a user called dremio.

To run the Dremio daemon service under a different username (for example, testuser), apply the following changes before configuring.

  1. Update the DREMIO_USER in the /etc/sysconfig/dremio file to testuser.
  2. Apply the following permissions:
    sudo chown -R testuser:testuser /var/log/dremio
    sudo chown -R testuser:testuser /var/lib/dremio
    sudo chown -R testuser:testuser /var/run/dremio

Using a Tarball​

Perform these steps on each node of your Dremio cluster:

  1. Create a dremio group.

    sudo groupadd -r dremio

  2. Create a dremio user.

    sudo useradd -r -g dremio -d /var/lib/dremio -s /sbin/nologin dremio

  3. Create Dremio directories.

    sudo mkdir /opt/dremio
    sudo mkdir /var/run/dremio && sudo chown dremio:dremio /var/run/dremio
    sudo mkdir /var/log/dremio && sudo chown dremio:dremio /var/log/dremio
    sudo mkdir /var/lib/dremio && sudo chown dremio:dremio /var/lib/dremio

  4. Unpack Dremio into the /opt/dremio directory.

    sudo tar xvf dremio-<VERSION>.tar.gz -C /opt/dremio --strip-components=1

  5. Create a symbolic link for the configuration folder.

    sudo ln -s /opt/dremio/conf /etc/dremio

  6. (Optional) Set up your service configuration (SystemD setup).

    a. Copy the unit file for the dremio daemon from <DREMIO_HOME>/share/dremio.service to /etc/systemd/system/dremio.service.

    sudo cp <DREMIO_HOME>/share/dremio.service /etc/systemd/system/dremio.service

    b. Restart systemd.

    sudo systemctl daemon-reload

    c. (Optional) Enable dremio to start at boot.

    sudo systemctl enable dremio

  7. Configure Dremio. See Dremio Configuration for more information.

Sample Service Configuration​

The following snippet shows the configuration in the <DREMIO_HOME>/share/dremio.service file:

    #
    # Installation is assumed to be under /opt/dremio
    #
    [Unit]
    Description=Dremio Daemon Server
    Documentation=https://docs.dremio.com
    Wants=network-online.target
    After=network-online.target
    
    [Service]
    User=dremio
    Group=dremio
    RuntimeDirectory=dremio
    ExecStart=/opt/dremio/bin/dremio start-fg
    Restart=on-failure
    # Set maximum number of file descriptors Dremio can open.
    # Dremio requires a large number to work correctly.
    LimitNOFILE=65536
    
    
    [Install]
    WantedBy=multi-user.target