Monitoring instances
You can use the Administration App, CLI, and REST API to view a list of all system instances in the system.
Related topics:
Administration App instructions
Viewing all instances
To view all instances, in the Administration App, click on Monitoring > Dashboard > Instances.
The page shows all instances in the system separated into two sections, Masters and Workers. Each instance is identified by its IP address.
If your system uses both internal and external networks, the page shows the internal and external IP addresses for each instance.
This table describes the information shown for each instance.
| Property | Description |
|---|---|
|
State |
One of these: •Up — The instance is reachable by other instances in the system. •Down — The instance cannot be reached by other instances in the system. |
|
Services |
The number of services running on the instance. |
|
Service Units |
The total number of service units for all services running on the instance out of the recommended service unit limit for the instance. An instance with a higher number of service units is likely to be more heavily utilized by the system than an instance with a lower number of service units. The Instances page displays a blue bar for instances running less than the recommended service unit limit.
The Instances page displays an orange bar and warning icon for instances running more than the recommended service unit limit.
For more information on service units and service unit recommendations, see Service units. |
|
Load Average |
The load averages for the instance for the past one, five, and ten minutes. |
|
CPU |
The sum of the percentage utilization for each CPU core in the instance. |
|
Memory Allocated |
This section shows both: •The amount of RAM on the instance that's allocated to all services running on that instance. •The percentage of this allocated RAM to the total RAM for the instance. |
|
Memory Total |
The total amount of RAM for the instance. |
|
Disk Used |
The current amount of disk space that your system is using in the partition on which it is installed. |
|
Disk Free |
The amount of free disk space in the partition in which your system is installed. |
Viewing the services running on an instance
To view the services running on an individual instance, in the Administration App:
1.Click on Monitoring > Dashboard > Instances.
2.Click on the instance you want.
The page lists all services running on the instance.
For each service, the page shows:
•The service name
•The service state. One of these:
oHealthy — The service is running normally.
oUnconfigured — The service has yet to be configured and deployed.
oDeploying — The system is currently starting or restarting the service. This can happen when:
–You move the service to run on a completely different set of instances.
–You repair a service.
For information on viewing the status service operations, see Monitoring service operations.
oBalancing — The service is running normally, but performing some background maintenance operations.
oUnder-protected — In a multi-instance system:
–One or more of the instances on which a service is configured to run are offline.
–The service is configured to run on fewer than the recommended number of instances. For information, see Service list.
oFailed — The service is not running or the system cannot communicate with the service.
•Service Units — The total number of service units currently being spent to run this service. This value is equal to the service's service unit cost times the number of instances on which the service is running. For more information, see Service units.
•Avg CPU Usage — The current percentage CPU usage for the service across all instances on which it's running.
•Memory — The current RAM usage for the service across all instances on which it's running.
•Disk Used — The current total amount of disk space that the service is using across all instances on which it's running.
Related CLI command(s)
getInstance
listInstances
For information on running CLI commands, see CLI reference.
Related REST API method(s)
GET /instances
GET /instances/{uuid}
For information on specific REST API methods, in the Administration App, click on the help icon (). Then:
•To view the administrative REST API methods, click on Admin API.
•To view the API methods used for performing searches, click on Search API.
For general information about the administrative REST API, see REST API reference.
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