HardDesign: Ride-Sharing Service (Uber/Lyft)

How do you scale the location service to handle 500,000 driver updates per second?

Tests your understanding of this concept.

Answer Options

ASingle Redis server with fast hardware
BRedis Cluster partitioned by geohash prefix, with each shard handling a geographic region
CStore all locations in a SQL database with geospatial index
DUse Elasticsearch with geo_point fields

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This question is from the Design: Ride-Sharing Service (Uber/Lyft) topic (System Design Cases).

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