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Riak vs. LMDB

Riak LMDB + Add column
Category
Preference (43% global votes) (57% global votes)
Website docs.​basho.​com symas.​com/​mdb
License
Design
Database model
Data storage
Embeddable No Yes
Features
Query language
Data types
Conditional entry updates No No
Map and reduce Yes No
Unicode Yes No
TTL for entries Yes No
Compression Yes No
Integrity
Integrity model
Atomicity No Yes
Consistency Yes Yes
Isolation Yes Yes
Durability (data storage) Yes Yes
Transactions No Yes
Referential integrity No No
Revision control Yes No
Locking model No
Indexing
Secondary Indexes Yes No
Composite keys Yes No
Full text search Yes No
Geospatial Indexes No No
Graph support No No
Distribution
Horizontal scalable Yes No
Replication Yes No
Replication mode
Sharding ? No
Shared nothing architecture Yes ?
Restrictions
Value size max. 64 MB 4 GB
System requirements
Operating system
Native driver
Memory minimum 4 GB 64 kB
Architecture
Programming language
More
Description High performance key-value/document store. Memory-Mapped, Copy-on-Write
Brand
Multi-user system Yes Yes
Database
Standard compliance No ?
Software distribution
Release Date 17ᵗʰ August 2009 September 2011
Documentation level ★★★★★ ★★★★★
RESTful Yes ?
Lines of code 4.5 k 7 k
Distributed Counter Yes ?
Free to use Yes Yes
Active Yes Yes
Database Connection Pooling Yes ?
Real time analytics Yes Yes
Creation Date 17ᵗʰ November 2009 2009
Community Driven Good Good
Web interface No ?
API Good Basic
Cloud platform support ?
Online backup Yes Yes
Log Yes ?
Implementation flexibility (67% global votes) (50% global votes)
Download basho.​com/​resources/​downloads/​ gitorious.​org/​mdb
Backup functionality Good Good
Query Cache Yes No
Ease of use ★★★★★ ★★★★☆
Siblings Yes ?
In-Place Update Yes Yes
Free for commercial use Yes Yes
Sorts Yes Yes
Tuneable write concerns Yes ?
Read preferences Yes No
Open Source Yes Yes
Perfomance ★★★★★ ★★★★★
JSON Yes Yes
Flexible Table(Schema) Yes ?
Geo-distributed Yes ?
Re-Reduce Yes ?
Free edition Yes ?
Monitoring UI Yes ?
Price rating ? ★★★★★
Function Based Index ? No
Maximum size ? 9.2 EB
Batch Loading ? Yes
Corruption Resistant ? Yes
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Riak LMDB
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