可扩展性和弹性
SaaS 中的可扩展性和弹性是什么?
发布时间: 10 月 14, 2024
What are scalability and elasticity?
Scalability is about adapting to changing long-term demands. It’s often associated with increasing resources, but the term sometimes also refers to decreasing them.
Elasticity is more short-term. It’s about increasing or decreasing resources automatically, depending on customer trends.
You need scalability and elasticity so that your SaaS platform can handle changing trends in a cost-effective manner.
现实生活中可扩展性和弹性应用的例子包括:
- 可扩展性: 预测正常运行时间并增加服务器数量,例如夏季的旅游网站或圣诞节前的电子商务网站。
- 弹性: 增加资源以应对新闻报道后突然增加的流量;新冠疫情初期,洗手液和口罩就是一个例子。
Why is scalability important in SaaS?
可扩展性意味着SaaS平台即使在客户群不断增长的情况下也能继续平稳运行;许多没有提前准备的程序会措手不及,并遭受用户体验问题。
团队应在每个阶段测试其平台的可扩展性 growth stage 并在必要时进行更改。
在SaaS中实施可扩展性和弹性有哪些挑战?
可扩展性和弹性是有益的,但它们通常会导致成本增加。您还需要技术知识来实施您所做的任何更改。
如果您的SaaS工具没有为可扩展性或弹性做好充分准备,其性能可能会下降,但了解预期情况将使这两种情况都更容易管理。
如何扩展SaaS平台?
在扩展时,您应该考虑规划并选择满足您需求的软件。
请遵循以下提示:
- Choose a scalable cloud provider: Before deciding on a platform, prioritize built-in scaling and elasticity to minimize manual work. Amazon Web Services (AWS) and Google Cloud are two starting points.
- Design for scalability: Use modular architectures that you can scale up or down. Start with microservices if you aren’t too experienced.
- Automate: You should look for tools that 自动化扩展性 或根据您设置的指标进行弹性调整。需要考虑的指标包括 CPU 使用率、网络流量和响应时间。
- 监控和优化: 查看后端性能,并在需要时进行调整。
专业提示:
- 负载测试: 经常用超出您预期的负载测试您的平台,并在需要时进行扩展性和弹性改进。
- 成本管理: 提前设定您的预算。您还应该创建警报来跟踪扩展成本。
咨询专家: 寻求第三方协助,例如SaaS专业架构师和云顾问。
结论
If you want to adapt to changing demand, you need both scalability and elasticity. Elasticity is short-term, and you must have it to respond to sudden demand changes. Scalability, meanwhile, is required to prepare for predictable long-term changes. Once you understand the difference between scalability and elasticity, consider costs, your cloud infrastructure, and testing protocols.