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LMDB vs. AllegroGraph

LMDB AllegroGraph + Add column
Preference (57% global votes) (40% global votes)
Website symas.​com/​mdb www.​franz.​com/​agraph/​allegrograph/​
Database model
Data storage
Embeddable Yes No
Query language
Data types
Conditional entry updates No ?
Map and reduce No No
Unicode No Yes
TTL for entries No Yes
Compression No Yes
Integrity model
Atomicity Yes Yes
Consistency Yes Yes
Isolation Yes Yes
Durability (data storage) Yes Yes
Transactions Yes Yes
Referential integrity No Yes
Revision control No No
Locking model
Secondary Indexes No Yes
Composite keys No No
Full text search No Yes
Geospatial Indexes No Yes
Graph support No Yes
Graph type ?
Horizontal scalable No Yes
Replication No Yes
Replication mode
Sharding No No
Shared nothing architecture ? Yes
Value size max. 4 GB ?
System requirements
Operating system
Native driver
Memory minimum 64 kB ?
Programming language
Description Memory-Mapped, Copy-on-Write AllegroGraph® is a modern, high-performance, persistent graph database.
Multi-user system Yes Yes
Price rating ★★★★★ ★★★★☆
Software distribution
Release Date September 2011 ?
Documentation level ★★★★★ ★★★★☆
Lines of code 7 k ?
Free to use Yes Conditional
Active Yes Yes
Real time analytics Yes Yes
Creation Date 2009 ?
Community Driven Good No
API Basic ?
Online backup Yes Yes
Function Based Index No No
Implementation flexibility (50% global votes) (0% global votes)
Download gitorious.​org/​mdb franz.​com/​agraph/​downloads/​
Backup functionality Good Good
Query Cache No Yes
Ease of use ★★★★☆ ★★★★☆
In-Place Update Yes ?
Free for commercial use Yes No
Sorts Yes Yes
Read preferences No ?
Open Source Yes No
Maximum size 9.2 EB ?
Perfomance ★★★★★ ★★★★☆
JSON Yes Yes
Batch Loading Yes Yes
Corruption Resistant Yes ?
Extension/Plug-in ? No
Standard compliance ? Yes
Synchronisation ?
Object-Relational Mapping (ORM) ? Yes
RESTful ? Yes
Database Connection Pooling ? Yes
WSDL ? Yes
Web interface ? Yes
Data encryption ? Conditional
XML Aware ? Good
Cloud platform support ?
Log ? Yes
Tuneable write concerns ? Yes
Triggers ? Yes
Server side custom code ? Yes
Spring Data Support ? No
Geospatial ? Yes
Server Side Java Script ? Yes
Flexible Table(Schema) ? Yes
Geo-distributed ? Yes
Ajax ? Yes
Clustering over WAN ? Yes
Fully Distributed ? No
Stored Procedure ? Yes
Auto-Sharding ? No
+ Add row ++
LMDB AllegroGraph
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