(co-author here) Thanks for sharing this post! We've elaborated the various issues we encountered trying to use a concurrent LRU cache in Dgraph and our dissatisfaction at existing choices which fail to provide memory management, high concurrency and hit ratios.
With guidance from Ben Manes, we're planning to work on a new concurrent Go cache based on Caffeine (Java). If you're interested in helping (or already have something similar), do reach out to us!
With guidance from Ben Manes, we're planning to work on a new concurrent Go cache based on Caffeine (Java). If you're interested in helping (or already have something similar), do reach out to us!
Meanwhile, check out Dgraph, our distributed graph database which is what keeps us busy: https://github.com/dgraph-io/dgraph