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tagged with all of: performance + distributed-systems
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Quicksilver V2 represents the evolution of a globally distributed key-value store designed by Cloudflare, focusing on enhanced performance and reliability. The article discusses the architectural changes and improvements made in this version, emphasizing its ability to handle increased data loads and provide better consistency across distributed systems.
A web crawler successfully crawled over 1 billion pages in 25.5 hours for approximately $462, utilizing a cluster of 12 optimized nodes. The design focused on high concurrency, fault tolerance, and adherence to web crawling etiquette, while primarily fetching HTML content and avoiding modern JavaScript-heavy pages. The project aimed to explore the feasibility of large-scale web crawling given advancements in technology since earlier benchmarks.
The article discusses the complexities and performance considerations of implementing a distributed database cache. It highlights the challenges of cache synchronization, data consistency, and the trade-offs between speed and accuracy in data retrieval. Additionally, it offers insights into strategies for optimizing caching methods to enhance overall system performance.
Scalability and performance are often confused, but they represent different concepts in distributed systems. While performance typically refers to throughput, scalability is the ability to adjust system capacity according to demand. Achieving scalability is crucial and often leads organizations to rely on cloud providers, even at a higher cost, to manage varying workloads effectively.