Microservices Engine:Manage alert rules

How alert rules work

Each alert rule creates an alert control backed by a dataset that stores monitoring data. MSE periodically evaluates rule conditions against this data and triggers notifications when thresholds are breached.

Create an alert rule

1. Log on to the MSE console, and select a region in the top navigation bar.

2. In the left-side navigation pane, choose Microservices Registry > Alerts > Alert Policies.

3. In the upper-left corner of the MSE Alert List page, click Create MSE Alert Rule.

4. On the Create MSE Alert Rule page, configure the following settings and click Save.

   Basic settings

   Parameter	Description
   Alert Rule Name	A descriptive name for the alert rule.
   MSE Instance	The MSE instance to monitor. The instance type (Nacos or ZooKeeper) appears in parentheses next to the instance name.
   Alert Contact Group	The contact group that receives alert notifications.

   Alert conditions

   Parameter	Description
   Alert Metric	The metric to monitor. Available metrics vary based on the alert group that you specify.
   Alert Condition	The threshold that triggers the alert. For example, fire an alert when the number of services exceeds 100.
   Filter Conditions	Keep the default value No Filter.
   Duration	How long the condition must persist before the alert fires.
   Alert Level	The severity of the alert. Valid values: Default, P4, P3, P2, and P1. Severity increases from Default to P1.

   Alert message

   Parameter	Description
   Alarm Message	The notification content displayed when an alert fires. Use Go template syntax to insert dynamic variables. Available variables depend on the selected alert metric.

   Alarm Message template example:

   Instance ID: {{$label.service_cluster_id}}
   Node name: {{$label.kubernetes_pod_name}}
   Metric threshold: {{$labels.metrics_params_value}}
   Actual value: {{ printf "%.2f" $value }}

   Notification settings

   MSE supports two notification modes:

   • Simple Mode sends notifications directly to the specified contact group.

   • Standard Mode routes alerts through the Application Real-Time Monitoring Service (ARMS) alert center, which dispatches and processes alert events based on a notification policy.

   Parameter	Description
   Alert Notification	The notification mode: Simple Mode or Standard Mode.
   Specify Notification Policy	Required for Standard Mode only. Select an existing notification policy from the drop-down list, or click Create Notification Policy to configure a new one on the Notification Policy page. For details, see Create and manage a notification policy.

   Advanced settings

   Parameter	Description
   Alert Check Cycle	How often the alert rule is evaluated, in minutes. Default: 1.
   Check after the data is complete	Whether to wait for data integrity before evaluating the rule.
   Tags	Click Create Tag to add tags. Tags serve as matching criteria in dispatching rules.
   Annotations	Click Create Annotation. Set Key to message and Value to a string in the format {{Variable name}} Alert information. Example: message:{{$labels.pod_name}} Restart.

Manage existing alert rules

All alert rules are listed on the MSE Alert List page. Use the Actions column to manage individual rules, or select multiple rules for batch operations.