Software2 hOctober 7, 2026, 21:30

Grab moves Counter Service to Aerospike, cuts p99 latency by 50%

Grab migrated its Counter Service storage from a wide-column database to Aerospike, redesigning the data model and using staged traffic migration to avoid downtime. The service backs Grab's anti-fraud platform, handling tens of thousands of queries per second and about one billion requests a day. Grab reports roughly 50% lower production p99 read latency, on-disk data down from about 3 TB to 1 TB, and 45–50% lower cost per node.

InfoQ

Open source

Grab moves Counter Service to Aerospike, cuts p99 latency by 50%

Production p99 read latency dropped by roughly 50%
On-disk data shrank from about 3 TB to 1 TB
Cost per node fell by 45–50%
Traffic shifted gradually, with shadow reads rising from 5% to 100%

#Grab#Aerospike

Perplexity launches Photon: Rust retrieval engine cuts p99 latency from 800 ms to 65 ms

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Hardware

Grab moves Counter Service to Aerospike, cuts p99 latency by 50%

Perplexity launches Photon: Rust retrieval engine cuts p99 latency from 800 ms to 65 ms

Uber Eats Rebuilds Search Pipeline, Cuts Latency by 50%

Perplexity replaces DynamoDB with in-house CobbleDB, cutting read latency 5x

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