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Auto Scaling

Product Introduction
Overview
Strengths
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Service Limits
Access Management
Purchase Guide
Getting Started
Creating a Scaling Plan in 5 Minutes
Step 1:Creating a Launch Configuration
Step 2:Creating a Scaling Group
Step 3:Creating a Scaling Policy
Tutorial
Creating Web Services
Creating High-performance Computing Cluster
Creating Servers for Sending Requests
Configuring For High Availability Services
Launch Configuration
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Creating a Launch Configuration
Viewing Launch Configuration List
Modifying Launch Configurations
Exception Detection
Scaling Groups
Scaling Group Overview
Creating a Scaling Group
Viewing Scaling Group List
Modifying Scaling Groups
Modifying Bound Instances
Adding CLBs
Delete scaling group
Creating Notifications
Creating Scaling Activity Notifications
Specifying Notification Recipients
Expanding and Reducing Capacity
Auto Scaling Lifecycle Hook
Managing Scheduled Actions
Managing an Alarm-triggered Policy
Instance Health Check
Expanding Capacity Manually
Scale-in Process
Viewing Scaling Activities
Suspending and Resuming Scaling
Scale-in Removal Protection
Scaling Activity Cancelled
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Scaling Group Doesn't Work
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Setting a Fixed Outbound IP Address for Scaling Groups
Deploying Elastic Web Application Service
Enabling Services Upon CVM Start-up
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Glossary
DocumentaçãoAuto ScalingTutorialCreating Web Services

Creating Web Services

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Última atualização: 2024-01-08 17:53:29

Use Case

Auto Scaling (AS) is applicable to servers used for common Web services. It helps you to manage servers easily and increase the business robustness.
For e-commerce websites, video websites, and online education websites, requests from clients are directs to the application server through load balancers. In case of rapid changes in the access volume, Auto Scaling can flexibly scale in and out application CVMs based on the volume of requests.


How to Use

Add the following clusters to the scaling group to provide further protection for the cluster:
Frontend server cluster (access layer)
Application server cluster (logic layer)
Cache server cluster (data layer)
You can also configure scheduled scaling policy for expected business peaks (such as online promotions).
Note:
Add CVM instances in the cluster to the scaling group, and enable Removal Protection for certain CVM instances to ensure the normal operations of the cluster. You can also configure the alarm scaling policy to prevent burst traffic or CC attacks.

Benefits of AS

1. AS can help deal with unexpected request traffic and avoid single point of failures.
2. You only need to estimate the resident resources, AS can dynamically adjust elastic resources to reduce IT costs.
3. Scale out quickly in case of CC attacks to avoid request packet loss.

Applicable industries

This solution is applicable to all websites, especially to those with large load fluctuations:
E-commerce websites
Online education websites
Video websites
Live streaming websites

FAQs

Is this scheme suitable for common web services, such as internal systems or websites with steady traffic?

Yes. Common websites will also encounter unexpected situations, such as CC attacks, or piled access due to unexpected incidents.
This solution does no incur any additional cost. You only need to enable Removal Protection for the necessary servers, and don’t need to change the structure and operation of websites.
It’s recommended to take this solution as the best practice for your websites.
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