From the FoundationDB paper ..
"Currently, the storage engine on each StorageServer is a modified version of SQLite [41], with enhancements that make range clears faster, defer deletion to a background task, and add support for asynchronous programming."
TIL: we have a version of SQLite embedded on each StorageServer with support for asynchronous programming ..
Inspired by
@AlexMillerDB's blog post on transactional systems, here's my Sunday paper reading - the foundational paper on FoundationDB .. (find the link in the original blog post) ..