tests also show that OpenLDAP LightningDB is much faster (~10 times in some scenarios) in read operations and some write types (e.g. batch and synchronous writes, see the link above), and is almost equal in the rest of the test. All the above benchmarks date back from 2011 to 2014, and may only be of historical significance as SQLite, for instance, became significantly more efficient. Bugs and reliability LevelDB has history of database corruption bugs. A study from 2014 has found that, on older (non-checksummed) file systems, the database could become corrupted after a crash or power failure. See also Lightning Memory-Mapped Database RocksDB References External links 2011 software Bigtable implementations C++ libraries Google software Key-value databases NoSQL Database engines Embedded databases Software using the BSD license