Quizlet Tests Cloud Spanner – The Most Sophisticated Cloud Database(quizlet.com)
quizlet.com
Quizlet Tests Cloud Spanner – The Most Sophisticated Cloud Database
https://quizlet.com/blog/quizlet-cloud-spanner
3 comments
MySQL and Spanner performance flips as QPS climbs. MySQL latencies are lower (better) at 3000 QPS and higher (worse) at 9000 QPS, than Spanner. Spanner latency is basically unchanged, while MySQL latency has jumped.
"We've eliminated most of the joins we do, so we haven't tested Cloud Spanner's join performance."
Makes sense given Quizlet's scale and sharding approach. Anyone else have early experience to share with joins?
Makes sense given Quizlet's scale and sharding approach. Anyone else have early experience to share with joins?
Yes, I would expect that, and it does sound annoying. So, what is it about the INSERT and UPDATE that can't work given the other elements of Cloud Spanner's design?