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DBMS > Dgraph vs. Neo4j vs. Solr

System Properties Comparison Dgraph vs. Neo4j vs. Solr

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Editorial information provided by DB-Engines
NameDgraph  Xexclude from comparisonNeo4j  Xexclude from comparisonSolr  Xexclude from comparison
DescriptionDistributed and scalable native Graph DBMSOpen source graph databaseA widely used enterprise search engine based on Apache Lucene
Primary database modelGraph DBMSGraph DBMSSearch engine
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.04
Rank#145  Overall
#9  Graph DBMS
Score51.66
Rank#22  Overall
#1  Graph DBMS
Score56.57
Rank#17  Overall
#3  Search engines
Websitedgraph.ioneo4j.comlucene.apache.org/­solr
Technical documentationdocs.dgraph.ioneo4j.com/­docslucene.apache.org/­solr/­resources.html
DeveloperDgraph Labs, Inc.Neo4j, Inc.Apache Software Foundation
Initial release201620072004
Current release4.0.0, January 20208.3.1, December 2019
License infoCommercial or Open SourceOpen Source infoApache 2.0Open Source infoGPL version3, commercial licenses availableOpen Source infoApache Version 2
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageGoJava, ScalaJava
Server operating systemsLinux
OS X
Windows
Linux infoCan also be used server-less as embedded Java database.
OS X
Solaris
Windows
All OS with a Java VM and a servlet container inforuns as a servlet in servlet container (e.g. Tomcat, Jetty is included)
Data schemeschema-freeschema-free and schema-optionalyes infoDynamic Fields enables on-the-fly addition of new fields
Typing infopredefined data types such as float or dateyesyesyes infosupports customizable data types and automatic typing
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.nono
Secondary indexesyesyes infopluggable indexing subsystem, by default Apache Luceneyes infoAll search fields are automatically indexed
SQL infoSupport of SQLnonono infosupports limited query time joins
APIs and other access methodsGraphQL query language
gRPC (using protocol buffers) API
HTTP API
Bolt protocol
Cypher query language
Java API
Neo4j-OGM infoObject Graph Mapper
RESTful HTTP API
Spring Data Neo4j
TinkerPop 3
Java API
RESTful HTTP API
Supported programming languagesC#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
.Net
Clojure
Elixir
Go
Groovy
Haskell
Java
JavaScript
Perl
PHP
Python
Ruby
Scala
.Net
Erlang
Java
JavaScript
any language that supports sockets and either XML or JSON
Perl
PHP
Python
Ruby
Scala
Server-side scripts infoStored proceduresnoyes infoUser defined Procedures and FunctionsJava plugins
Triggersnoyes infovia event handleryes infoUser configurable commands triggered on index changes
Partitioning methods infoMethods for storing different data on different nodesyesnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesSynchronous replication via RaftCausal Clustering using Raft protocol infoavailable in in Enterprise Version onlycloud/distributed (via Zookeeper)
Master-slave replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyCausal and Eventual Consistency configurable in Causal Cluster setup
Immediate Consistency in stand-alone mode
Eventual Consistency infoslaves poll the master in predefined intervalls
Foreign keys infoReferential integritynoyes infoRelationships in graphsno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDoptimistic locking infoSolr 4
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.no
User concepts infoAccess controlno infoPlanned for future releasesUsers, roles and permissions. Pluggable authentication with supported standards (LDAP, Active Directory, Kerberos)
More information provided by the system vendor
DgraphNeo4jSolr
Specific characteristicsNeo4j is a native graph database platform that is built to store, query, analyze...
» more
Competitive advantagesHorizontally scalable transactional graph database with fast arbitrary-depth joins...
» more
Neo4j database is the only transactional database that combines everything you need...
» more
Typical application scenariosReal-Time Recommendations Master Data Management Identity and Access Management Network...
» more
Key customersOver 300 commercial customers and over 750 startups use Neo4j. Flagship customers...
» more
Market metricsNeo4j boasts the world's largest graph database ecosystem with more than a 15 million...
» more
Licensing and pricing modelsGPL v3 license that can be used all the places where you might use MySQL. Neo4j Commercial...
» more
News

This Week in Neo4j – Managing Multiple Databases, When and how to implement Sharding, Building Possibility Spaces with Neo4j and ReactJS, Australian Open Graph
25 January 2020

This Week in Neo4j – Discovering the Soul of a Product, UK Singles Chart Graph, Building Real-Time UIs with Kafka and Vue.js
18 January 2020

Creating Aha Moments for Developers: The 5-Minute Interview with Jennifer Reif, Developer Relations Engineer at Neo4j
17 January 2020

Graphs to Fight Diabetes
15 January 2020

This Week in Neo4j – Analyzing .NET Dependencies, Coloring a Sudoku Graph, Christmas Messages Graph, Making Graph Algorithms ‘Clique’
11 January 2020

We invite representatives of system vendors to contact us for updating and extending the system information,
and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

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More resources
DgraphNeo4jSolr
DB-Engines blog posts

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Elasticsearch replaced Solr as the most popular search engine
12 January 2016, Paul Andlinger

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2 July 2014, Paul Andlinger

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4 February 2013, Paul Andlinger

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Conferences and events

GraphConnect 2020
New York, USA, 20-22 April 2020

Recent citations in the news

Dgraph raises $11.5 million for scalable graph database solutions
31 July 2019, VentureBeat

Dgraph Labs Secures $11.5 Million in Latest Funding Round
31 July 2019, Database Trends and Applications

Startup Dgraph Labs growing graph database technology
1 August 2019, TechTarget

Dgraph raises $3M for its open-source distributed graph database, hits 1.0 release
19 December 2017, TechCrunch

Dgraph releases Ristretto, a fast, concurrent and memory-bound Go cache library
24 September 2019, Packt Hub

provided by Google News

Neo4j the graph database
14 January 2020, App Developer Magazine

Neo4j introduces new cloud service to simplify building a graph database
6 November 2019, TechCrunch

TigerGraph Improves Graph Database As A Service
9 January 2020, iProgrammer

Neo4j is the Graph Database of Choice for World's Top Financial Services Organizations
22 October 2019, PRNewswire

Graph for the mass market: Neo4j launches Aura on Google Cloud
7 November 2019, ZDNet

provided by Google News

Is Solar Alliance Energy Inc. (CVE:SOLR) A Volatile Stock?
23 January 2020, Yahoo Finance

Do Insiders Own Shares In Solar Alliance Energy Inc. (CVE:SOLR)?
17 January 2020, Simply Wall St

New Research: Apache Solr Parameter Injection
14 August 2019, Security Boulevard

Exploit code published for two dangerous Apache Solr remote code execution flaws
26 November 2019, ZDNet

Apache Solr Bug Gets Bumped Up to High Severity
20 November 2019, Threatpost

provided by Google News

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