Installing Cloudera Manager, CDH, and Managed Services

The following diagram illustrates the phases required to install Cloudera Manager and a Cloudera Manager deployment of CDH and managed services. Every phase is required, but you can accomplish each phase in multiple ways, depending on your organization's policies and requirements.

The six phases are grouped into three installation paths based on how the Cloudera Manager Server and database software are installed on the Cloudera Manager Server and cluster hosts. The criteria for choosing an installation path are discussed in Cloudera Manager Deployment.

Cloudera Manager Installation Software

Cloudera Manager provides the following software for the supported installation paths:
  • Installation path A - A small self-executing Cloudera Manager installation program to install the Cloudera Manager Server and other packages in preparation for host installation. The Cloudera Manager installer, which you install on the host where you want the Cloudera Manager Server to run, performs the following:
    1. Installs the package repositories for Cloudera Manager and the Oracle Java Development Kit (JDK)
    2. Installs the Cloudera Manager packages
    3. Installs and configures an embedded PostgreSQL database for use by the Cloudera Manager Server, some Cloudera Management Service roles, some managed services, and the Cloudera Navigator servers
  • Installation paths B and C - Cloudera Manager package repositories for manually installing the Cloudera Manager Server, Agent, and embedded database packages.
  • All installation paths - The Cloudera Manager "first run" wizard for automating CDH and managed service installation and configuration on the cluster hosts. Cloudera Manager provides two methods for installing CDH and managed services: traditional packages and parcels. Parcels simplify the installation process and allow you to download, distribute, and activate new minor versions of CDH and managed services from within Cloudera Manager. After you install Cloudera Manager and you connect to the Cloudera Manager Admin Console for the first time, use the Cloudera Manager "first run" wizard to do the following:
    1. Discover cluster hosts
    2. Optionally install the Oracle JDK
    3. Optionally install CDH, managed service, and Cloudera Manager Agent software on the hosts
    4. Select which services to run
    5. Specify the mapping of service roles to hosts
    6. Confirm service configurations and start the services
    If you abort the software installation process, the Cloudera Manager wizard automatically reverts and rolls back the installation process for any uninstalled components. (Installation that has completed successfully on a host is not rolled back on that host.)