Applications page

The Applications page lists managed applications, the services that support Control Center, application templates, and a graph showing thin pool usage.

In the Applications area, to display a details page for an application, click its name. To display the Internal Services page, click Internal Services. You can also search for, start or stop, and add or delete an application. In the Resource Pools column, click the resource pool name to access a details page. In the Public Endpoint column, click the link to open an application.

In the Application Templates area, you can search for and add or delete an application template.

The graphs area shows thin pool usage information. You can change range, aggregator, and refresh settings. For more information about thin pool requirements, see Control Center application data storage requirements.

Internal Services details

The Internal Services page provides summary information about the services upon which Control Center relies. To view graph data associated with a service, click on its name.

Application details

The application details page includes controls for and information about the application.

For the Zenoss application, you can view service logs, edit services, edit variables, and start or stop the application. Details include public endpoints, IP assignments, configuration files, services associated with the application, and instances of the application.

In the Public Endpoints area, you can search for and add public endpoints. The table lists public endpoint information for the services that are associated with the application. You can start, stop, and delete service public endpoints.

The Instances area lists information about each instance of the application. You can search for an instance, access the host, view logs, and restart an instance.

Graphs visually represent the following information about the application:

CPU usage by the system and users
Memory usage (total RSS and cache)
DFS usage
Network usage
Open connection information

For more information, see Emergency shutdown of services and Rolling restart of services.

IP Assignments

The IP Assignments area lists the services that have external (public) IP addresses. You can change the external IP address for a service.

Configuration Files table

The Configuration Files table lists any configuration files that are associated with the application. You can search for and edit configuration files.

To edit a configuration file, click Edit in the Actions column. Changes are not shared with other instances. For more information about the files, see the configuration documentation for your application.

Services

The Services table contains a nested list of services and subservices that are associated with an application.

To expand or collapse the list of subservices, click the arrow beside a service name. Services at the same level are peers. An indented service is a subservice of the preceding service.
To access a service details page, click a service name.
The Status column shows the start or stop status of a service.
The Health column indicates health-check results for started services. If multiple instances are running, the number is noted. Hover the mouse over the icon for additional details.
The Actions column contains the controls for starting and stopping a service. Stop applies to all instances of the service and discards the containers in which the instances were running. Start creates new containers for the required number of instances. Action controls for the entire application are in the upper right corner of the window.

Because the data series used by the service graphs is tagged by serviceid and hostid, when a single instance service is restarted and ends up on a different host, there are two data series in the database for that service. While both series are present, sum and average will show different values. For data after the last transition, sum and average will be the same.