Dev Tools · 2h ago
Binary search balances 4M-item crawl in 40 API calls
A developer needed to crawl 4 million registry items in one day. Uneven key distribution caused one shard to handle 71% of the work. Using the API's built-in rank function, they binary-searched keys to create balanced shards, achieving near-perfect parallelism.
Meridian48 take
A clever exploitation of monotonic rank—not new tech, but a sharp reminder that the best optimizations often come from understanding your data source's hidden properties.
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The ten-line binary search that balanced a four-million-item crawl →
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