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Identifying and Addressing the gRPC Client Bottleneck in Low-Latency Networks

By

eivanov89

10mo ago· 10 min readenInsight

Summary

The article discusses the discovery of a bottleneck in gRPC clients in low-latency networks, leading to increased client-side latency as cluster size decreases. Solutions to mitigate this bottleneck are explored.

Key quotes

· 3 pulled
Improving anything but the bottleneck is an illusion.
The fewer cluster nodes we have, the harder it is for the benchmark to load the cluster.
We identified the root cause as a bottleneck on the client side of gRPC.
Snippet from the RSS feed
At YDB, we use gRPC to expose our database API to clients. Therefore, all our load generators and benchmarks are gRPC clients. Recently, we discovered that the fewer cluster nodes we have, the harder…

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