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LMDB vs. RethinkDB

LMDB RethinkDB + Add column
Preference (57% global votes) (48% global votes)
Website symas.​com/​mdb rethinkdb.​com
Database model
Data storage
Embeddable Yes No
Query language
Data types
Conditional entry updates No Yes
Map and reduce No Yes
Unicode No Yes
TTL for entries No No
Compression No No
Integrity model
Atomicity Yes Conditional
Consistency Yes Yes
Isolation Yes Yes
Durability (data storage) Yes Yes
Transactions Yes No
Referential integrity No No
Revision control No Yes
Locking model
Secondary Indexes No Yes
Composite keys No Yes
Full text search No No
Geospatial Indexes No Yes
Graph support No No
Horizontal scalable No Yes
Replication No Yes
Replication mode
Sharding No Yes
Shared nothing architecture ? Yes
Value size max. 4 GB 71 MB
System requirements
Operating system
Native driver
Memory minimum 64 kB 2 GB
Programming language
Description Memory-Mapped, Copy-on-Write RethinkDB is an open-source, scalable, distributed database built to store JSON documents.
Multi-user system Yes Yes
Price rating ★★★★★ ★★★★★
Software distribution
Release Date September 2011 6ᵗʰ April 2016
Documentation level ★★★★★ ★★★★★
Lines of code 7 k 2 402 k
Free to use Yes Yes
Active Yes Yes
Real time analytics Yes Yes
Creation Date 2009 ?
Community Driven Good Good
API Basic ?
Online backup Yes Yes
Function Based Index No Yes
Implementation flexibility (50% global votes) (17% global votes)
Download gitorious.​org/​mdb rethinkdb.​com/​docs/​install
Backup functionality Good Good
Query Cache No Yes
Ease of use ★★★★☆ ★★★★★
In-Place Update Yes Yes
Free for commercial use Yes Yes
Sorts Yes Yes
Read preferences No ?
Open Source Yes Yes
Maximum size 9.2 EB ?
Perfomance ★★★★★ ★★★★☆
JSON Yes Yes
Batch Loading Yes ?
Corruption Resistant Yes ?
Standard compliance ? No
Object-Relational Mapping (ORM) ? Yes
RESTful ? Yes
Database Connection Pooling ? Yes
Web interface ? Yes
Data encryption ? No
Cloud platform support ?
Partial Index ? Yes
Key length max ? 127
Log ? Yes
Tuneable write concerns ? Yes
Triggers ? Yes
Geospatial ? Yes
Server Side Java Script ? Yes
Flexible Table(Schema) ? Yes
Geo-distributed ? Yes
Clustering over WAN ? Yes
Fully Distributed ? Yes
Stored Procedure ? Yes
Concurrency ? Yes
Auto-Sharding ? Yes
Contributors ? 126
Free edition ? Yes
SQL Queries ? No
Monitoring UI ? Yes
CLI` ? Yes
+ Add row ++
LMDB RethinkDB
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