You can use the console or API to search for CDH instances. Currently, the console supports searching by ID and name, while the API supports searching by availability zone, project, ID, name and status.
Log in to the CDH Console.
Select a region, enter the host ID or name in the search box in the upper right corner and click Search.
CDH instances can be filtered using the DescribeHosts API. For details, see API for Viewing CDH Instance List.