Configuring an Alarm Template

Procedure

1. Log in to the management console.
2. Click on the left and choose Management & Deployment > Application Performance Management.
3. In the navigation pane, choose Application Monitoring > Metrics.
4. In the tree on the left, click an application. The metric details page of the application is displayed.

5. Click the Alarm Templates tab.
6. Click Add Template to add an alarm template as prompted.
   1. Enter basic information and then click Next.

      Template Name: Enter up to 64 characters. Only letters, digits, underscores (_), and hyphens (-) are allowed.

      Remarks: Enter up to 512 characters. Only letters, digits, underscores (_), and hyphens (-) are allowed.

   2. Click Add Alarm Policy to add an alarm policy.
      1. Basic information

         Table 1 Basic information about an alarm policy

         Parameter	Description
         Policy Name	Custom name, which cannot be left blank. Only letters, digits, underscores (_), and hyphens (-) are allowed. Enter up to 512 characters.
         Alarm Severity	Severity of an alarm. Options: COMMON and CRITICAL.
         Alarm Policy Type	Options: Single-node and Aggregate. Single-node indicates single-instance metric alarms, and Aggregate indicates aggregated metric alarms of all instances under a component.
         Monitoring Item	Select a target monitoring item. The information about the selected item is displayed on the right.
         Metric Set	Select a target metric set. The information about the selected metric set is displayed on the right.

      2. Alarm rule
         Figure 1 Alarm rule
         

         Table 2 Alarm rule parameters

         Parameter	Description
         Dimension	(Optional) A category of metrics.
         Metric	Metric for which you want to define one or more alarm rules. Metric: a metric in the metric set. For example, if Monitoring Item is set to Url and Metric Set is set to total, you can select the errorCount metric. Operator: operation to be performed. Threshold: threshold of the metric.
         Alarm Condition	Condition for triggering an alarm. A: the number of collection periods. Range: 1–10. B: the number of times the alarm is triggered. Range: 1–10. This value cannot be greater than that of A. C: period (in minutes) during which identical alarms will not be sent. This period cannot be shorter than 10 minutes.
         Recovery Policy	Condition for clearing an alarm. For example, if this parameter is set to 3, the alarm status will change to "Cleared" if no alarm is generated within 3 minutes.
         Notification upon Recovery	Whether to notify recipients of alarm clearance.
         Multi-Line Matching	(Optional) Whether to define data in the alarm notification content line by line.
         Notification Content	Alarm details, which contain up to 500 characters. If Multi-Line Matching is enabled, the alarm notification content supports both Variable and Loop. If Multi-Line Matching is disabled, only Variable can be selected. Alarm notification content. You can customize the content or select metrics as required. Alarm details, which contain up to 500 characters. Select required metrics. Specifically, on the right of the page, click next to the target metric. The metric will then be displayed in the notification content.

      3. Notification object

      Table 3 Alarm notification parameters

      Parameter	Description
      Use default settings	If this option is enabled, alarms will be sent to one or more default notification objects. For details about how to set notification objects, see Alarm Notification. After this option is enabled, you can no longer select notification objects from the Notification Object drop-down list. If all the values in the Default column of the Notifications page are No, no default notification objects have been set. In this case, the Use default settings option on the alarm policy creation page is dimmed and cannot be enabled.
      Notification Object	Select a notification object from the drop-down list. Alarms will only be sent to the selected notification objects.

   3. Click Yes.
   4. Click Next. The Bind Node page is displayed.
   5. Click Bind Node to bind nodes by environment, environment tag, or region.

      Table 4 Node parameters

      Parameter	Description
      All	All nodes (including those added subsequently) in all regions will be bound.
      Environment	All nodes in the selected environment will be bound.
      Environment Tag	All nodes with the same tag will be bound.
      Region	All nodes in the selected region will be bound.

7. Click Yes. The information about the bound nodes is displayed in the lower part of the page, including the environment, tag, and region names.
   

   If there are multiple types of bound nodes, only information about the nodes with the same environment, tag, and region is displayed.

8. Click Complete.

More Operations

After the alarm template is created, perform the operations listed in Table 5 if needed.