After initial installation, you can
use the Add a Service wizard to add and configure new
service instances. For example, you may want to add a service such as
Oozie that you did not select in the wizard during the initial
installation.
On the
Home > Status
tab, click to the right of the cluster
name and select Add a Service. A list of service types display.
You can add one type of service at a time.
Select a service and click Continue. If
you are missing required binaries, a pop-up displays asking if you
want to continue with adding the service.
Select the services on which the new service should depend. All
services must depend on the same ZooKeeper service. Click
Continue.
The Assign Roles page
displays
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.
Click a field below a role to display a dialog box 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 hosts dialog box.
The following shortcuts for specifying hostname
patterns are supported:
Click the View By Host button for an overview of the role
assignment by hostname ranges.
Click Continue
Review and modify configuration settings, such as data
directory paths and heap sizes and click
Continue. The service is started.
Click Continue then click Finish.
You are returned to the home page.
Verify the new service is started properly by checking the
health status for the new service. If the Health Status is
Good, then the service started properly.
to the right of the cluster
name and select Add a Service. A list of service types display.
You can add one type of service at a time.