Viewing Host Status
You can view summary information about the hosts managed by Cloudera Manager. You can view information for all hosts, the hosts in a cluster, or individual hosts.
Viewing All Hosts
To display summary information about all the hosts managed by Cloudera Manager, click All Hosts page displays with a list of all the hosts managed by Cloudera Manager.in the left menu. The
- The information provided varies depending on which columns are selected. To change the columns, click the Columns: n Selected drop-down and select the checkboxes next to the columns to display.
- Click to the left of the number of roles to list all the role instances running on that host.
Filter the hosts list by entering search terms (hostname, IP address, or role) in the search box separated by commas or spaces. Use quotes for exact matches (for example, strings that contain spaces, such as a role name) and brackets to search for ranges. Hosts that match any of the search terms are displayed. For example:
hostname[1-3], hostname8 hostname9, "hostname.example.com" hostname.example.com “HDFS DataNode”
- You can also search for hosts by selecting a value from the facets in the Filters section at the left of the page. Click the Filters toggle to show or hide the Filters section.
- If the agent heartbeat and health status
properties are configured as follows:
- Send Agent heartbeat every x
- Set health status to Concerning if the Agent heartbeats fail y
- Set health status to Bad if the Agent heartbeats fail z
- v < x * y = Good
- v >= x * y and <= x * z = Concerning
- v >= x * z = Bad
Viewing the Hosts in a Cluster
- Select .
- In the Home screen, click in a full form cluster table.
Viewing Individual Hosts
You can view detailed information about an individual host—resources (CPU/memory/storage) used and available, which processes it is running, details about the host agent, and much more—by clicking a host link on the All Hosts page.