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Apache Accumulo vs. Virtuoso

Apache Accumulo Virtuoso + Add column
Apache Accumulo OpenLink Virtuoso
Preference (43% global votes) (64% global votes)
Website accumulo.​apache.​org virtuoso.​openlinksw.​com
Database model
Data storage
Embeddable No Yes
Query language
Data types
Conditional entry updates Yes Yes
Map and reduce Yes Yes
Unicode Yes Yes
TTL for entries Yes Yes
Compression Yes Yes
Integrity model
Atomicity Conditional Yes
Consistency Yes Yes
Isolation Yes Yes
Durability (data storage) Yes Yes
Transactions No Yes
Referential integrity No Yes
Revision control Yes Yes
Locking model
Secondary Indexes Yes Yes
Composite keys Yes Yes
Full text search No Yes
Geospatial Indexes No Yes
Graph support Yes Yes
Graph type
Horizontal scalable Yes Yes
Replication Yes Yes
Replication mode
Sharding Yes Yes
Shared nothing architecture Yes Yes
Value size max. 1 EB 4 GB
System requirements
Operating system
Native driver
Memory minimum 8 GB 73 MB
Programming language
Description A distributed database featuring cell level security and server-side computation Hybrid Co-Relational (Tables & Property Graph) Database Management System
Multi-user system Yes Yes
Extension/Plug-in Yes Yes
Multilingual content Yes Yes
Price rating ★★★★★ ★★★★☆
Multiple projects Yes Yes
Standard compliance Yes Yes
Software distribution
Release Date September 2011 1998
Documentation level ★★★☆☆ ★★★★★
RESTful No Yes
Distributed Counter Yes Yes
Free to use Yes Conditional
Active Yes Yes
Database Connection Pooling Yes Yes
Real time analytics Yes Conditional
Community Driven Basic Good
API Basic Good
Log Yes Yes
Implementation flexibility (50% global votes) (100% global votes)
Download accumulo.​apache.​org/​downloads/​ virtuoso.​openlinksw.​com/​download/​
Level of access authorization
Query Cache Yes Yes
Ease of use ★★★☆☆ ★★★★☆
Free for commercial use Yes Yes
Sorts Yes Yes
Open Source Yes Yes
Perfomance ★★★★☆ ★★★★★
Server Side Java Script No Yes
JSON Yes Yes
Flexible Table(Schema) No Yes
Fully Distributed Yes Yes
Stored Procedure No Yes
Concurrency Yes ?
Auto-Sharding Yes Yes
Free edition Yes Yes
Kafka Integration Yes ?
SQL Queries No ?
420 Friendly? Yes ?
Recursive queries No Yes
CLI` Yes Yes
Hadoop Integration Yes ?
WYSIWYG-Editor ? Yes
Template language ?
Target audience ?
Scaffolding ? Yes
Synchronisation ?
Object-Relational Mapping (ORM) ? Yes
Dynamic typing ? Yes
Programming paradigm ?
WSDL ? Yes
Web interface ? Yes
Data encryption ? Yes
XML Aware ? Good
Data Access Standard ?
Cloud platform support ?
Online backup ? Yes
Partial Index ? Yes
Function Based Index ? Yes
Backup functionality ? Good
In-Place Update ? Yes
Tuneable write concerns ? Yes
XQuery Support ? Yes
Triggers ? Yes
Server side custom code ? Yes
Minimal memory footprint ? 64 MB
Geospatial ? Yes
Text Analytics ? Yes
Geo-distributed ? Yes
Ajax ? Yes
Batch Loading ? Yes
Re-Reduce ? Yes
Clustering over WAN ? Yes
Visualizer ? Yes
In business since ? May 1992
24/7 support ? Yes
Multi-statement Transactions ? Yes
Monitoring UI ? Yes
Original Release Date ? 1998
Latest Release Date ? 26ᵗʰ April 2016
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Apache Accumulo Virtuoso
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