Server Load Balancer:CLB quotas

Prerequisite

By default, only Alibaba Cloud accounts are authorized to manage quotas in Quota Center. For RAM users to manage quotas, you must grant RAM users the AliyunQuotasFullAccess permission.

View quotas

Request a quota increase

Create a quota alert

For some CLB quota items, you can create alerts by setting a threshold for quota usage or the remaining available quota. When the quota usage or remaining available quota reaches the preset threshold, the system sends an alert message to a specified callback URL by using an HTTP POST request. You can use the alert message to proactively apply for a quota increase and prevent your business from being affected.

Create a quota alert in Quota Center

1. Log on to the Quota Center console.

2. In the left-side navigation pane, click Quota Alert.

3. On the Alarm Rules page, select the General Quotas or API Rate Limits tab, and then click Create Quota Alert.

4. On the Create Alarm Rule page, configure the alarm rule parameters and click Confirm.

   Parameter	Description	Example
   Alarm Rule Name	The name of the alarm rule.	vCPU quota alert for preemptible instances
   Alarm Metric	The metric that triggers the quota alert. Valid values: Quotas Used Quotas Usage Percentage of Available Quotas	Usage
   Threshold and Alarm Level	The alert level and its corresponding threshold. The notification methods for each alert level are as follows: Critical: email and alert callback. Warning: email and alert callback. Info: email and alert callback. You must also specify the number of times the metric must reach the threshold before an alert is triggered. Valid values: 1, 3, 5, 10, 15, 30, 60, 70, 90, 120, and 180 consecutive cycles. CloudMonitor uses different notification channels for each level. The level is triggered when the metric value falls into the corresponding threshold range.	Alert level: Info. The default notification method for this level is email and alert callback. Threshold: >=80%.
   Mute For	The mute period for a triggered alert. If the alert condition persists after this period, another notification is sent. Valid values: 5 minutes, 15 minutes, 30 minutes, 60 minutes, 3 hours, 6 hours, 12 hours, and 24 hours. When a metric triggers an alert, CloudMonitor sends a notification. During the Mute For period, no new notifications are sent for the same alert. If the metric has not returned to normal after the period ends, CloudMonitor sends another notification. For example, if you set Mute For to 24 hours, CloudMonitor sends another alert notification after 24 hours if the alert is not cleared.	5 minutes
   Effective Time	The period during which the alarm rule is active. An alarm rule sends notifications only within the specified effective period from Monday to Sunday.	Period: Monday to Sunday Time: 00:00 to 23:59
   Alarm Contact Group	The contact group that receives alert notifications. Alert notifications are sent to the alert contacts in the specified alert contact group. An alert contact group can contain one or more alert contacts. For more information about how to create alert contacts and alert contact groups, see Create an alert contact or an alert contact group.	ECS Instance Quota Administrator
   Alarm Callback	A publicly accessible URL that receives alert notifications from CloudMonitor via HTTP POST requests. Only the HTTP protocol is supported. To test the connectivity of the alert callback URL, perform the following steps: Click Test next to the callback URL. On the Test Result page, you can check the connectivity of the alert callback URL based on the status code and details returned by the webhook. Note You can also set the Language for the webhook and click Test again to obtain the test result details in the selected language. Click Close.	http://alert.aliyun.com:8080/callback
   Labels	The labels of the alarm rule. You can add up to six labels.	k1,v1
   Push Channel	The delivery channel for alert information. Valid values: Simple Log Service If you enable Simple Log Service, alert information is sent to a Logstore in Simple Log Service when an alert is triggered. You must specify the Region, ProjectName, and Logstore. For more information about how to create a Project and a Logstore, see Use Logtail to collect and analyze text logs from ECS instances. Message Service MNS — topic If you enable Message Service MNS — topic, alert information is sent to a topic of Simple Message Queue (formerly MNS) when an alert is triggered. You must specify the region and topic for Simple Message Queue (formerly MNS). For more information about how to create a topic, see Create a topic. Function Compute If you enable Function Compute, alert notifications are sent to Function Compute for formatting when an alert is triggered. You must specify the region, service, and function. For more information about how to create a service and a function, see Create a function.	Turn off this feature.
   Recovery Notification	If enabled, sends a notification when an alert is cleared. This feature is on by default.	Turn on this feature.
   Method for Handling No Data	The action to take when monitoring data is unavailable. Valid values: Do not do anything (Default) Send alarm notification Treated as normal	Do not do anything

5. (Optional) View alert callback results.

   If you configured an alert callback, you can view the callback records and automatically submitted quota increase applications after a callback is successful.

   1. In the left-side navigation pane, click Alert History to view the alert callback records.

      If Callback is included in the Notification Methods column for an alert, the callback was successful.

   2. In the left-side navigation pane, click Application Records to view automatically submitted quota increase applications.

Create a quota alert in the SLB console

1. Log on to the Quota Management page in the Server Load Balancer (SLB) console.

2. On the Quota Center page, find the target quota and click Create Alert in the Actions column.

3. In the Create Alarm Rule panel, configure the alarm rule parameters and click Confirm.

   1. Basic Information: Enter a custom rule name.

   2. Alarm Object: Information about the corresponding quota item.

   3. Alarm Condition:

      1. Alarm Metric: Select a metric to monitor, such as Quota, Used Quota, Usage, or Availability.

      2. Set the Threshold and Alert Level. Specify thresholds for the Critical, Warning, and Info levels. Different notification methods are used for different levels.

   4. Notification Method:

      1. Select a Mute For period. This is the interval at which a new alert notification is sent if the alert is not cleared.

      2. Configure the Effective Time and Alarm Contact Group.

      3. Alarm Callback: When an alarm rule is triggered, CloudMonitor sends an alert message to the URL that you specify.

4. In the Actions column of the target general quota, click the icon and select Alarm Rules.

5. On the Alarm Rules page, you can view the newly created alarm rule. You can also click View, Modify, or Delete in the Actions column to manage it.

Add a quota to a quota template

Prerequisites

Before you use a quota template, make sure that the following requirements are met:

• An enterprise management account is used.

• Resource directory and the quota template feature are enabled.

Add to a quota template in Quota Center

1. Log on to the Quota Center console.

2. In the left-side navigation pane, click Quota Templates. On the Quota Templates page, click Enable Quota Template.

3. In the Enable Quota Template dialog box, click OK.

4. In the left-side navigation pane, choose Products > General Quotas.

5. Under the Network section, select Server Load Balancer.

6. On the General Quotas page, find the target quota and click Create Quota Template in the Actions column.

7. In the Create Quota Template dialog box, set the Applied Quotas for the quota and click OK.

Add to quota templates in the SLB console

1. Log on to the Quota Management page in the Server Load Balancer (SLB) console.

2. On the Quota Center page, find the target quota and click Create Quota Template in the Actions column.

3. In the Create Quota Template dialog box, set the Applied Quotas for the quota and click OK.