Take a look at the opensource leanstore repository. https://github.com/leanstore/leanstore https://github.com/leanstore/leanstore Very different approach from

Take a look at the opensource leanstore repository. https://github.com/leanstore/leanstore https://github.com/leanstore/leanstore Very different approach from lmdb's mmap though. Not limited to single writer. Explicit buffer pool. Big difference from Umbra is fixed sized pages.