ApsaraMQ for Kafka:Configure alerts in Control Center

How it works

An alert consists of two parts:

• Trigger: A rule that evaluates a metric against a threshold. When the condition is met, the trigger fires.

• Action: A notification sent when a trigger fires. Each trigger can have one or more actions.

To set up an alert:

1. Create a trigger by selecting a metric, a condition (such as "greater than"), and a threshold value.

2. Create an action that specifies the notification channel (email, Slack, or PagerDuty) and link it to a trigger.

When the metric meets the trigger condition, all associated actions run and send notifications.

Create a trigger

1. Log on to Control Center.

2. In the top navigation bar, click the icon.

3. On the Overview page, click the Triggers tab, and then click Add a trigger.

4. On the New trigger page, specify the trigger name and trigger condition, and then click Save.

After you create the trigger, click the trigger name on the Triggers tab to modify or delete it.

Create an action

Actions define how notifications are delivered when a trigger fires.

1. On the Overview page, click the Actions tab, and then click Add an action.

2. On the New action page, configure the following parameters, and then click Save.

   Parameter	Description
   Action Name	A name for the action.
   Triggers	The trigger to associate with this action.
   Action	The notification channel. Valid values: - Send email: Deliver notifications by email. - Send PagerDuty notification: Deliver notifications through PagerDuty. For setup details, see Services and Integrations. - Send Slack notification: Deliver notifications through Slack incoming webhooks. For setup details, see Sending messages using incoming webhooks.
   Subject	Email addresses of one or more alert contacts, separated by commas. Required only when Action is set to Send email. Each time the action runs, an email is sent to the specified addresses.
   Max send rate	Maximum number of times the action runs within a given frequency. Use with the Frequency parameter. For example, set this to 1 and Frequency to Per day to limit notifications to once per day.
   Frequency	The time interval for the send rate limit. Valid values: Per minute, Per hour, Per 4 hours, Per 8 hours, Per day. Default: Per hour.

After you create the action, click the action name on the Actions tab to modify or delete it.

Pause and resume all alert actions

During maintenance or troubleshooting, pause all alert actions to suppress notifications temporarily. Pausing does not change individual action settings. Each action retains its enabled or disabled state.

While paused, trigger conditions that are met are ignored and all enabled actions associated with those triggers are suppressed.

After you resume actions, triggers fire and send notifications when conditions are met again.

Disable or enable an alert action

Actions are enabled by default when created. Disable an action to prevent it from running without deleting it. Pausing and resuming respects the disabled state -- resuming paused alerts does not reactivate disabled actions.

1. On the Overview page, click the Actions tab.

2. Click the action to manage.

3. On the action details page, click Edit and turn off the Enabled switch.

To re-enable the action, repeat these steps and turn on the Enable switch.

Alert metrics reference

Control Center provides four categories of trigger metrics. Each metric monitors a specific aspect of your Kafka infrastructure.

Related information

For more information about Control Center alert capabilities, see Control Center Alerts for Confluent Platform.