Adding a Hue Service and Role Instance

Adding the Hue Service

Minimum Required Role: Cluster Administrator (also provided by Full Administrator)

After initial installation, you can use the Add a Service wizard to add and configure a new Hue service instance.

  1. On the Home > Status tab, click to the right of the cluster name and select Add a Service. A list of service types display.
  2. Select Hue.
  3. Click Continue.

    A page displays where you can specify the dependencies for the Hue service.

  4. Select the row with the Hue dependencies required for your cluster. For more information, see Hue Dependencies.
  5. Customize the assignment of role instances to hosts. The wizard evaluates the hardware configurations of the hosts to determine the best hosts for each role. The wizard assigns all worker roles to the same set of hosts to which the HDFS DataNode role is assigned. You can reassign role instances if necessary.

    Click a field below a role to display a dialog containing a list of hosts. If you click a field containing multiple hosts, you can also select All Hosts to assign the role to all hosts, or Custom to display the pageable hosts dialog.

    The following shortcuts for specifying hostname patterns are supported:
    • Range of hostnames (without the domain portion)
      Range Definition Matching Hosts
      10.1.1.[1-4] 10.1.1.1, 10.1.1.2, 10.1.1.3, 10.1.1.4
      host[1-3].company.com host1.company.com, host2.company.com, host3.company.com
      host[07-10].company.com host07.company.com, host08.company.com, host09.company.com, host10.company.com
    • IP addresses
    • Rack name

    Click the View By Host button for an overview of the role assignment by hostname ranges.

  6. Click Continue.

    Cloudera Manager starts the Hue service.

  7. Click Continue.
  8. Click Finish.
  9. If your cluster uses Kerberos, Cloudera Manager will automatically add a Hue Kerberos Ticket Renewer role to each host where you assigned the Hue Server role instance. Also see, Enable Hue to Work with Hadoop Security using Cloudera Manager.

Adding a Hue Role Instance

Minimum Required Role: Cluster Administrator (also provided by Full Administrator)

  1. In Cloudera Manager Administration Console, go to the Hue service.
  2. Click the Instances tab.
  3. Click the Add Role Instances button.
  4. Customize the assignment of role instances to hosts. The wizard evaluates the hardware configurations of the hosts to determine the best hosts for each role. The wizard assigns all worker roles to the same set of hosts to which the HDFS DataNode role is assigned. You can reassign role instances if necessary.

    Click a field below a role to display a dialog containing a list of hosts. If you click a field containing multiple hosts, you can also select All Hosts to assign the role to all hosts, or Custom to display the pageable hosts dialog.

    The following shortcuts for specifying hostname patterns are supported:
    • Range of hostnames (without the domain portion)
      Range Definition Matching Hosts
      10.1.1.[1-4] 10.1.1.1, 10.1.1.2, 10.1.1.3, 10.1.1.4
      host[1-3].company.com host1.company.com, host2.company.com, host3.company.com
      host[07-10].company.com host07.company.com, host08.company.com, host09.company.com, host10.company.com
    • IP addresses
    • Rack name

    Click the View By Host button for an overview of the role assignment by hostname ranges.

  5. If your cluster uses Kerberos, you must add the Hue Kerberos Ticket Renewer role to each host where you assigned the Hue Server role instance. Cloudera Manager will throw a validation error if the new Hue Server role does not have a colocated KT Renewer role. Also see, Enable Hue to Work with Hadoop Security using Cloudera Manager.
  6. Click Continue.