Improving Espresso availability with preemptive Helix-managed traffic shift

1 · LinkedIn · Aug. 11, 2020, 6:44 p.m.
Co-authors: Gaurav Mishra, Song Lu, Antony Curtis, Shuangyang Yang Espresso is LinkedIn's horizontally scalable, highly-available, and elastic data-as-a-service platform that serves nearly 95% of our online storage traffic. Given its position in our tech stack, an optimization in Espresso availability can have a major impact on our members’ experience. In this blog, we explore an improvement in availability by using a Helix CurrentStates-based Router. We’ll discuss its implementation, compare it...