Technical Guide: How to Crawl a Billion Web Pages in 24 Hours
By
pseudolus
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Summary
This article provides a detailed technical guide on how to crawl a billion web pages in just over 24 hours, updating previous benchmarks from 2012. It covers the technological advancements that make this possible today, including multi-core CPUs, NVMe SSDs, improved network bandwidth, and modern cloud infrastructure like EC2. The author explains the practical considerations, tools, and architecture needed for large-scale web crawling, discussing challenges like bandwidth limitations, storage requirements, and distributed computing approaches.
Key quotes
· 4 pulledFor some reason, nobody's written about what it takes to crawl a big chunk of the web in a while: the last point of reference I saw was Michael Nielsen's post from 2012.
Obviously lots of things have changed since then. Most bigger, better, faster: CPUs have gotten a lot more cores, spinning disks have been replaced by NVMe solid state drives with near-RAM I/O bandwidth, network pipe widths have exploded, EC2 has gone from a tasting menu of instance types to a whole rolodex's worth.
Crawling a billion web pages in just over 24 hours is now feasible with modern hardware and cloud infrastructure.
The article provides practical guidance on the architecture, tools, and considerations for large-scale web crawling projects.
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