Install, start and test
Ambari installs, starts, and runs a simple test on each component.
In the event of any failure during the initial cluster deployment, it is a good practice to go through each service one by one by running its service check command. Ambari runs all the service checks as part of the installation wizard, but if anything were to fail, Ambari might not have run all the service checks. On the dashboard page for each service in the Ambari GUI, go to each service's panel and click .