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DBMS > Memcached vs. Memgraph vs. NebulaGraph vs. Neo4j vs. OpenQM

System Properties Comparison Memcached vs. Memgraph vs. NebulaGraph vs. Neo4j vs. OpenQM

Editorial information provided by DB-Engines
NameMemcached  Xexclude from comparisonMemgraph  Xexclude from comparisonNebulaGraph  Xexclude from comparisonNeo4j  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparison
DescriptionIn-memory key-value store, originally intended for cachingAn open source graph database built for real-time streaming and compatible with Neo4jA distributed, linear scalable, high perfomant Graph DBMSScalable, ACID-compliant graph database designed with a high-performance distributed cluster architecture, available in self-hosted and cloud offeringsQpenQM is a high-performance, self-tuning, multi-value DBMS
Primary database modelKey-value storeGraph DBMSGraph DBMSGraph DBMSMultivalue DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score18.08
Rank#32  Overall
#4  Key-value stores
Score3.19
Rank#94  Overall
#8  Graph DBMS
Score2.23
Rank#116  Overall
#10  Graph DBMS
Score44.89
Rank#21  Overall
#1  Graph DBMS
Score0.34
Rank#284  Overall
#10  Multivalue DBMS
Websitewww.memcached.orgmemgraph.comgithub.com/­vesoft-inc/­nebula
www.nebula-graph.io
neo4j.comwww.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qm
Technical documentationgithub.com/­memcached/­memcached/­wikimemgraph.com/­docsdocs.nebula-graph.ioneo4j.com/­docs
Social network pagesLinkedInTwitterFacebookGitHubDiscord
DeveloperDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalMemgraph LtdVesoft Inc.Neo4j, Inc.Rocket Software, originally Martin Phillips
Initial release20032017201920071993
Current release1.6.27, May 20245.20, May 20243.4-12
License infoCommercial or Open SourceOpen Source infoBSD licenseOpen Source infoBSL 1.1; commercial license for enterprise edition availableOpen Source infoApache Version 2.0 + Common Clause 1.0Open Source infoGPL version3, commercial licenses availableOpen Source infoGPLv2, extended commercial license available
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Neo4j Aura: Neo4j’s fully managed cloud service: The zero-admin, always-on graph database for cloud developers.
Implementation languageCC and C++C++Java, Scala
Server operating systemsFreeBSD
Linux
OS X
Unix
Windows
LinuxLinuxLinux infoCan also be used server-less as embedded Java database.
OS X
Solaris
Windows
AIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
Data schemeschema-freeschema-free and schema-optionalStrong typed schemaschema-free and schema-optionalyes infowith some exceptions
Typing infopredefined data types such as float or datenoyesyesyes
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.nonoyes
Secondary indexesnoyes infoNebula Graph internally uses the Key-Value store RocksDB for persistency. The vertices, edges, and their properties are stored as Key while their values are stored as Value. The primary indexes are per Key and secondary indexes are per Value.yes infopluggable indexing subsystem, by default Apache Luceneyes
SQL infoSupport of SQLnonoSQL-like query languagenono
APIs and other access methodsProprietary protocolBolt protocol
Cypher query language
Browser interface
console (shell)
Cypher Query Language
GO Object Graph Mapper
Java Object Graph Mapper
NGBatis infoORM framework for NebulaGraph and Spring-Boot
Proprietary native API
Python Object Graph Mapper
Query language nGQL
Bolt protocol
Cypher query language
Java API
Neo4j-OGM infoObject Graph Mapper
RESTful HTTP API
Spring Data Neo4j
TinkerPop 3
Supported programming languages.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
.Net
C
C++
Elixir
Go
Haskell
Java
JavaScript
PHP
Python
Ruby
Scala
.Net
C++
Go
Java
PHP
Python
.Net
Clojure
Elixir
Go
Groovy
Haskell
Java
JavaScript
Perl
PHP
Python
Ruby
Scala
.Net
Basic
C
Java
Objective C
PHP
Python
Server-side scripts infoStored proceduresnouser defined functionsyes infoUser defined Procedures and Functionsyes
Triggersnoyes infovia event handleryes
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infodynamic graph partitioningShardingyes using Neo4j Fabricyes
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoRepcached, a Memcached patch, provides this functionallityMulti-source replication using RAFTCausal Clustering using Raft protocolCausal Clustering using Raft protocol infoavailable in in Enterprise Version onlyyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyCausal and Eventual Consistency configurable in Causal Cluster setup
Immediate Consistency in stand-alone mode
Immediate Consistency
Foreign keys infoReferential integritynoyes inforelationships in graphsyes infoRelationships in graphsyes infoRelationships in graphsno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACID infowith snapshot isolationACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyes, multi-version concurrency control (MVCC)yesyesyes
Durability infoSupport for making data persistentnoyes infowith periodic snapshot and write-ahead logging (WAL) of changesyes infousing RocksDByesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlyes infousing SASL (Simple Authentication and Security Layer) protocolUsers, roles and permissionsRole-based access controlUsers, roles and permissions. Pluggable authentication with supported standards (LDAP, Active Directory, Kerberos)Access rights can be defined down to the item level
More information provided by the system vendor
MemcachedMemgraphNebulaGraphNeo4jOpenQM infoalso called QM
Specific characteristicsMemgraph directly connects to your streaming infrastructure so you and your team...
» more
NebulaGraph is a truly distributed, linearly scalable, lightning-fast graph database,...
» more
Neo4j delivers graph technology that has been battle tested for performance and scale...
» more
Competitive advantagesBusiness Source License ensures a future for the Memgraph community MAGE algorithm...
» more
NebulaGraph boasts the world's only graph database solution that is able to host...
» more
Neo4j is the market leader, graph database category creator, and the most widely...
» more
Typical application scenariosGraph algorithms in bioinformatics Social network analysis Cryptocurrency network...
» more
Social networking Fraud detection Knowledge graph Data warehouse management Anti...
» more
Real-Time Recommendations Master Data Management Identity and Access Management Network...
» more
Key customersCompanies from a variety of industries have implemented NebulaGraph Database in production,...
» more
Over 800 commercial customers and over 4300 startups use Neo4j. Flagship customers...
» more
Market metricsAt our very early stage, NebulaGraph has already received over 10,000 stars on GitHub...
» more
Neo4j boasts the world's largest graph database ecosystem with more than 140 million...
» more
Licensing and pricing modelsYou can check out our pricing model and licenses on the company website .
» more
NebulaGraph is open source and free to use under Apache 2.0 license.
» more
GPL v3 license that can be used all the places where you might use MySQL. Neo4j Commercial...
» more
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