Episode 2 of 9 · Uber
Geospatial indexing: how a million pings a second answer 'who is nearby'
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Geospatial indexing: how a million pings a second answer 'who is nearby'. This one subsystem does two incompatible things at once. It absorbs more than a million location writes every second, and it answers, in milliseconds, which drivers are within two
Based on the board Location Firehose & Geo-Index.
Covered in Uber - the case study.
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