LevelDB vs libmdbx

LevelDB

LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values. (by google)

Database

Source Code

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libmdbx

One of the fastest embeddable key-value ACID database without WAL. libmdbx surpasses the legendary LMDB in terms of reliability, features and performance. (by erthink)

Database NoSQL storage-engine Performance Lmdb mdbx mvcc Key-Value Iiot Transaction

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LevelDB		libmdbx
	Project
27	Mentions	2
35,007	Stars	1,030
1.1%	Growth	-
0.0	Activity	9.6
10 days ago	Latest Commit	about 2 years ago
C++	Language	C
BSD 3-clause "New" or "Revised" License	License	GNU General Public License v3.0 or later

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

LevelDB

Posts with mentions or reviews of LevelDB. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-12-05.

Codebases to read
5 projects | /r/cpp | 5 Dec 2023

I'm partial to how cleanly written https://github.com/google/leveldb is. It is a reasonable size to fully read & grok in not too long.
Unpacking LSM-Trees: The Powerhouse Behind Modern Databases
1 project | dev.to | 2 Dec 2023

[4] leveldb/doc/impl.md at main · google/leveldb. GitHub. Retrieved October 21, 2023 from https://github.com/google/leveldb/blob/main/doc/impl.md
Bloom filter support to leveldb by Sanjay Ghemawat
1 project | news.ycombinator.com | 2 Aug 2023
SQLite performance tuning: concurrent reads, multiple GBs and 100k SELECTs/s
5 projects | news.ycombinator.com | 12 Apr 2023
The Witty Guide to Installing LevelDB on Ubuntu: HostRooster® Edition
1 project | /r/domainrooster | 28 Mar 2023

git clone https://github.com/google/leveldb.git
Is there a lightweight, stable and embedded database library?
7 projects | /r/golang | 19 Dec 2022

leveldb?
Ask HN: What's the best source code you've read?
46 projects | news.ycombinator.com | 10 Sep 2022
LevelDB VS ZoneTree - a user suggested alternative
2 projects | 22 Aug 2022
Is Mongo as popular in the job world as it is with tutorial makers?
1 project | /r/node | 29 Jun 2022
Open Source Databases in Go
52 projects | /r/golang | 8 Jun 2022

goleveldb - Implementation of the LevelDB key/value database in Go.

libmdbx

Posts with mentions or reviews of libmdbx. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-04-16.

Daily General Discussion - April 16, 2022
4 projects | /r/ethfinance | 16 Apr 2022

What the actual f. Is there any kind of explanation for this from Microsoft? I did notice this is giving 404 https://github.com/erthink/libmdbx
Citrix has removed CVE acknowledgements of Positive Technologies researchers
1 project | news.ycombinator.com | 24 Aug 2021

https://github.com/erthink/libmdbx (works for Positive Technologies)
> This is a mirror of the origin repository that was moved to abf.io because of discriminatory restrictions for Russian Crimea.

What are some alternatives?

When comparing LevelDB and libmdbx you can also consider the following projects:

RocksDB - A library that provides an embeddable, persistent key-value store for fast storage.

LMDB++ - C++11 wrapper for the LMDB embedded B+ tree database library.

MongoDB - The MongoDB Database

LMDB - Read-only mirror of official repo on openldap.org. Issues and pull requests here are ignored. Use OpenLDAP ITS for issues.

SQLite - Unofficial git mirror of SQLite sources (see link for build instructions)

Redis - Redis is an in-memory database that persists on disk. The data model is key-value, but many different kind of values are supported: Strings, Lists, Sets, Sorted Sets, Hashes, Streams, HyperLogLogs, Bitmaps.

FlashDB - An ultra-lightweight database that supports key-value and time series data | 一款支持 KV 数据和时序数据的超轻量级数据库

CouchDB - Seamless multi-master syncing database with an intuitive HTTP/JSON API, designed for reliability

upscaledb - A very fast lightweight embedded database engine with a built-in query language.