Note: The following content references Chapter 6 of “Building High-Availability Linux Servers” by Fuqin Zhujiu. Setting up a load-balancing high-availability environment is relatively simple; the key is understanding the principles. This article describes the pros and cons of three types of load balancers to help you make informed trade-offs based on your needs in real-world production deployments. Currently, in live …
First, look at the website architecture diagram: The architecture above is widely used in medium and large-scale websites. This article analyzes the mainstream technologies and solutions used at each layer of the architecture, helping newcomers to website operations and maintenance further understand website architecture, so they can develop their own architectural concepts. Layer 1: CDNThe domestic network distribution is mainly China Telecom in the south and China Unicom in the north …
How Much Traffic Can Your Website Handle? A common concern when setting up a website with a VPS or dedicated server is just how much user traffic it can actually withstand. Many people also enjoy tweaking LNMP or LAMP stacks to boost web performance, but how effective are those optimizations? That’s where I…
A PTS user reported that system performance couldn’t scale up, CPU utilization only reached 12%, TPS plummeted after running for one minute, and it kept getting slower with significant fluctuations. The transaction only involved a single PHP page request, the backend system architecture was apache2.2+PHP5.3+mysql+windows2003, and the stress test requests had no s …
Both LVS and Nginx can be used as multi-machine load balancing solutions. Each has its own advantages and disadvantages, and in production environments, careful analysis of the actual situation is needed to make good use of them.
First of all, a reminder: in technology, never blindly follow what others say, repeating what you hear without thinking; at the same time, don’t lean too conservative, overly trusting old methods while waiting for others to do the testing for you …
With more web applications, IT admins face growing challenges. Traffic spikes, hardware failures, and CD/deployments threaten web service reliability. Load balancing solves these issues…
Want to host public/private repositories anywhere for free? You can choose GitLab.com, where we have already hosted a single-instance GitLab, with nearly 20,000 people actively using GitLab to host repositories, and a single server has already hosted over 100,000 repositories. Before the single server, GitLa …
Apache comes with the built-in ab command for stress testing services, while Nginx does not have a built-in command and requires third-party software to test. Today, we’ll briefly introduce how to perform stress testing on Nginx using Webbench. Stress testing is essential for system administrators and operations personnel, as it provides a clear view of server …
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1. Introduction to webbench Webbench is a well-known website stress testing tool developed by Lionbridge (http://www.lio …
Keepalived provides health checks for RealServers and failover between master/backup hosts. It manages IPVS rules in the kernel on dual or multi-node setups…
