.. _byb:

Before You Begin the Installation on Hadoop
===========================================

Please review the following information before you begin installing Enterprise Steam.

**Note: This is obly relevant when installing Steam on Hadoop!**

- Complete the preinstall worksheet to identify what is necessary for the installation.
- Obtain the Enterprise Steam license key.
- Sudo or root access is required to install Enterprise Steam.
- For H2O and Sparkling Water, a Hadoop admin is needed in order to setup impersonation.
- The installation creates a new system user called "steam" if it does not exist. It is highly recommended to use this service ID to run Enterprise Steam.
- Enterprise Steam requires a single port (``:9555``) to be open before installation. Follow your regular process for opening ports for Enterprise Steam.
- If configuring LDAP, be sure that you have a good understanding of LDAP groups in order to get the LDAP connection strings to be configured in the Steam UI.

.. toctree::
    :maxdepth: 2

    preinstall-worksheet
    obtain-license-key