FYI. This is the slides of the bookkeeper talk JV and me gave at #lfvault. You can check it out if you are interested in.
https://vault2017.sched.com/event/A4wM/apache-bookkeeper-a-high-performance-and-low-latency-cloud-storage-service-sijie-guo-twitter http://www.slideshare.net/hustlmsp/apache-bookkeeper-a-high-performance-and-low-latency-storage-service - Sijie