Docs

Volcengine Managed Service for Prometheus

Alerting rule

Creating an alerting rule

You can manually configure alert rules by using PromQL statements, use Alert Center to monitor specific metrics in specific workspaces, and configure alerts based on the thresholds of metrics. This topic describes how to manually configure an alert rule by using a PromQL statement.

Prerequisites

VMP has been activated.

An alert notification policy has been created. For more details, see Creating alert notification policies.

An alert aggregation policy has been created. For more details, see Creating alert aggregation policies.

Limits

A root account and its IAM users can create up to 500 alert rules in total.

Up to 100 labels and 100 annotations can be configured for an alert rule.

Procedure

In the top navigation bar, select the target region.

On the left navigation bar, click Alert center > Alerting rule. Click Create > Create manually.

Specify the basic information.

Parameter
Descriptions
Name
Specify the name of the alert rule.
Description
Specify the description of the alert rule.

Configure the alert trigger condition.

Parameter	Descriptions
workspace	Select the workspace that you want to monitor and trigger alerts from the Workspace list.
Query statement	Use standard PromQL statements to configure monitoring objects or metrics.
Trigger policy	Configure an alert trigger policy. Specify the alert level, condition, threshold, and condition duration. Select P0, P1, or P2 to set different alert levels. If you do not select an option, alerts at this level are not configured. Comparison condition: Specify the comparison condition between the PromQL statement and the threshold. You can configure multiple comparison conditions. Valid values: Greater than, Greater than or equal to, Less than, Less than or equal to, Equal to, and Not equal to. Threshold: Set the threshold of the metric. Condition duration: Configures the duration for which the metric meets the condition. Valid values: Trigger immediately: An alert is triggered immediately when the alert condition is met. Custom duration: Select an alert trigger time. Available options include 1 minute, 2 minutes, 5 minutes, 10 minutes, 20 minutes, 30 minutes, 1 hour, 3 hours, 6 hours, and 12 hours. For example, 1 minute means that the alert will be triggered after the condition has been met for 1 minute.

Configure an alert notification. You can select a suitable notification policy and aggregation policy from the Unified Alert Center or the Original VMP alert policy tab.

Parameter	Descriptions
Notification policy	Select an alert notification policy from the Notify policy list. The system will send alerts to the specified contacts based on the alert levels and contact groups configured in the notification policy. For more details, see Creating alert notification policies.
Aggregation policy	Select an alert aggregation policy from the Aggregation policy list. For more details, see Creating alert aggregation policies.

Advanced configuration

Parameter	Descriptions
Label	Click Add a line to configure the label of the alert rule. A label consists of a key and a value. Key: A string, which can start with a letter or _, but cannot start with __. Allows 1–256 characters, which can contain letters, digits, and _. Value: The value is a string. It can contain Chinese characters, letters, digits, and special characters and must be 1 to 512 characters in length. tip When you configure multiple types of labels, the priorities of the labels are sorted in the following descending order: rule label > global label > PromQL label.
Annotation	Click Add a line to configure the annotation of the alert rule. An annotation consists of a key and a value. Valid values: Key: A string, which can start with a letter or _, but cannot start with __. Allows 1–256 characters, which can contain letters, digits, and _. Value: The value is a string. It can contain Chinese characters, letters, digits, and special characters and must be 1 to 512 characters in length.

Click Create to complete the configuration.

Last updated: 2026.07.10 11:37:26

Parameter	Descriptions
Name	Specify the name of the alert rule.
Description	Specify the description of the alert rule.