5. Within the Ambari web UI, click on the "Host" tab to
display all the hosts for the cluster. Click on the host in which you
just added the JournalNode service to in step 4. On this page you
should see the JournalNode component in the "Components" section. Next
to the JournalNode label is a drop down button, click it and select
the "install" option. A progress bar should show up displaying the
progress of the installation.