[cryptonector]

Note that the LMDB approach, and especially if you want MDB_FIXEDMAP, limits DB size to the largest mmap()ing you can get at a fixed location. That's not good in a world of 48-bit address spaces.

[nuopnu]

Practically it's even less than 47 bits. :) But sure, know your limits.

[cryptonector]

Yes, I know :)