Keepalived + HAProxy for High Availability Load Balancing
In modern internet architectures, high availability is a crucial consideration in system design. This article will detail how to use Keepalived and HAProxy to build a highly available load balancing cluster, ensuring service continuity and reliability.
A Unexpected Software Uninstall Journey
After reinstalling my system, I’ve consistently been missing a decent PDF reader. Within the 360 Software Center, I saw Xundu PDF recommended, even with a “special edition.” I had already formed a slight impression of this brand at that point, wondering how a niche software like a PDF reader could possibly generate profits – surely the promotional costs wouldn’t pay off. Later, I encountered it again through Xunlei’s promotion, and my computer did indeed need one, so I conveniently installed it.
ByteDance AI’s SOLO encoding new paradigm
Previously used products, during code development, were largely satisfactory, but Byte’s SOLO introduced significant differences. Initially, participation in beta testing was through invitation codes, and now it involves submitting an email address for review. After approval, the product can be used. I’ve forgotten when I submitted the application, but today I received a notification from Trae indicating that my application had been approved.
ByteSolo’s Advantages Following a standard project development process, it incorporates UI design, requirements analysis, functional design, technical solution implementation, and finally code development.
Win11 Pro Professional, Remote Desktop login error: Login failed
The host unexpectedly crashed with a blue screen, preventing it from booting. It’s using UEFI boot format and the system consistently fails to load properly. Switching to an MBR boot format (the older one) allows the system to start normally.
Following standard troubleshooting steps, we enabled remote desktop access, and another machine tested successfully – all network components were functioning correctly. Users log in as usual with their Microsoft accounts.
However, when attempting to log in via remote desktop, the error message “Login Failed” appears without any further information.
Recent Usage Experiences of Large Models
Currently, no large model stands out as particularly superior; each company has its own strengths and preferred use cases.
Technical Documentation For feeding code or asking IT technical questions: ChatGPT and Gemini
Write Code Gather requirements and request code modifications: Claude
Where can I find backtest data?
Backtesting requires: proportionate method (price-weighted return method), a simple explanation, and examples. Also, why cannot use add-subtract method for adjustment, and recommendations for Python historical data sources using the proportionate method. Okay, let’s explain the “proportionate method (price-weighted return method)” in an easy-to-understand way, along with why the “add-subtract method”
Cross-machine computation time difference
The existing communication protocol within the group uses steady_clock as a timestamp to calculate the latency for each individual node. In a specific scenario, a message packet’s built-in timestamp was used, and this timestamp originated from another machine – resulting in an anomalous latency calculation.
As a side note: Gemini2.5 Pro shows promise of completely surpassing GPT-4.
Breadcrumb Navigation
Continuing AI’s random writing, Local Comic Browser, at the end, I discovered there was no return to homepage function; I extracted the issue and fed it to AI. The solution was to add breadcrumb navigation.
What is Breadcrumb Navigation? Breadcrumb navigation is a common user interface design pattern typically used to help users understand their location within a website or application and provide quick paths to return to the previous level or homepage.