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Architecture excerpt
46. Design a Web Crawler
Ten billion pages in five days, politely, without losing progress: fetchers and parsers, domain locks, bandwidth math, deduplication and a crawl that stays fresh. One-hour boards for junior, senior and staff.
ClassicMedium
Queues Object storage AWS
+5
Crawling Deduplication Politeness Amazon S3 Amazon SQS
Worked design
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