LMDB is an ultra-fast, ultra-compact key-value data store developed by Symas for the OpenLDAP Project. It uses memory-mapped files, so it has the read performance of a pure in-memory database while still offering the persistence of standard disk-based databases, and is only limited to the size of the virtual address space (it is not limited to the size of physical RAM).
Release Notes: A NOTLS mode was added to allow multiple reader transactions per thread. Several new informational/administrative functions were added. The internal hard-coded limit on transaction sizes was removed; write transactions no longer have any fixed size limit.
Tags: Database, Software Development, Libraries
Licenses: OpenLDAP
Software page:
Lightning MDB 0.9.7