What is Tencent cloud lightweight application server? What are the differences between CVM and ECS?

contrast  ​ ​ Cloud server CVM​​, Lightweight application servers TencentCloud Lighthouse More focus on small and medium-sized enterprises 、 developer 、 Cloud computing entrants 、 User groups such as students . Compared with ECS CVM It's easier to use , Streamlining the ECS CVM High order concepts and functions of , Provide high bandwidth traffic packages and sell basic cloud resources in the form of cost-effective packages , Integrate and package popular open source software to build applications with one click , More suitable for supporting small and medium-sized websites 、Web application 、 Blog 、 Forum 、 Applet / Little games 、 Online retailers 、 Cloud disk / Picture bed 、 Lightweight technologies such as cloud development, testing and learning environments 、 Application scenarios with low load and moderate traffic .

explain

• When creating a lightweight application server, it is not supported to specify the name of the underlying physical server CPU model , Tencent cloud will randomly allocate physical services that meet the package specifications CPU model .
• With the same specification ​ ​ Standard ECs CVM​​  comparison , Lightweight application server CPU、 Memory performance is at the same level as it is .

Compared with cloud servers, lightweight application servers CVM Please refer to the following table for the main differences and advantages of ：

	Product advantage	Lightweight application servers TencentCloud Lighthouse	Cloud server CVM
More focused user groups	Small and medium-sized enterprises (smes) 、 developer	It is more suitable for medium and large enterprise users
Lighter business scenarios	Lightweight application scenarios , Typical scenes are as follows ： Official website of the enterprise 、 Blog 、 Forum 、 information 、 Commodity display and other websites Universal Web application Wechat applet 、 Little games Mobile App、H5、 official account Cross border e-commerce store management 、 Independent station construction Cloud disk 、 Picture bed service Cloud development test environment 、 learning environment	Complex application scenarios , Typical scenes are as follows ： High concurrency websites Big game Complex distributed cluster applications Video codec Big data analysis machine learning 、 Deep learning
More favorable billing mode	Way of sale	Cost effective package sale , Better overall （ Calculation / The Internet / Optimized combination of storage resources ）	Flexible matching calculation / Storage / Network resources , Independent overlay billing
Network billing	High bandwidth traffic packet mode	Fixed bandwidth / Flow consumption
Simpler use experience	Administrative console	One stop Integration , Independent and simplified console	For the whole business , involve CVM、VPC、EIP And security team
Application build	High quality image out of the box , Preset the optimal combination of software stacks required by the application system 1 Build an application with one click in minutes , Automatically complete the application software 、 Dependent runtime installation and initialization configuration	Users need to build their own applications
The Internet	Automatically create network resources , No user manual management is required	Users create their own 、 To configure 、 Manage the network

explain

• Compared with cloud servers, lightweight application servers CVM The main limitations at the functional level include ：
  The instance supports configuration in the unit of package （ Calculation 、 Storage and networking ） The overall upgrade of , But it does not support the downgrade package .
• Lightweight application servers also have certain limitations on Intranet connectivity
• Lightweight application server ​ ​ Cloud drive ​​  And cloud servers CVM Of ​ ​ Cloud drive ​​  Are independent of each other . Cloud disk drives of lightweight application servers only support attaching to lightweight application server instances , Unable to mount to ECS CVM.

If you need to use richer instance types , Such as memory optimized 、 high IO type 、 Big data 、 Bare metal 、GPU/FPGA Heterogeneous computing type, etc , Support highly concurrent websites 、 Video codec 、 Big game 、 Complex distributed cluster applications and other business scenarios , Please use ECS CVM product , For details, please refer to  ​ ​ Cloud server - Example specifications ​​.