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DBMS > AllegroGraph vs. etcd vs. Google Cloud Spanner vs. Titan

System Properties Comparison AllegroGraph vs. etcd vs. Google Cloud Spanner vs. Titan

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Editorial information provided by DB-Engines
NameAllegroGraph  Xexclude from comparisonetcd  Xexclude from comparisonGoogle Cloud Spanner  Xexclude from comparisonTitan  Xexclude from comparison
Titan has been decommisioned after the takeover by Datastax. It will be removed from the DB-Engines ranking. A fork has been open-sourced as JanusGraph.
DescriptionHigh performance, persistent RDF store with additional support for Graph DBMSA distributed reliable key-value storeA horizontally scalable, globally consistent, relational database service. It is the externalization of the core Google database that runs the biggest aspects of Google, like Ads and Google Play.Titan is a Graph DBMS optimized for distributed clusters.
Primary database modelDocument store infowith version 6.5
Graph DBMS
RDF store
Key-value storeRelational DBMSGraph DBMS
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.33
Rank#148  Overall
#25  Document stores
#13  Graph DBMS
#7  RDF stores
Score9.42
Rank#47  Overall
#5  Key-value stores
Score2.81
Rank#95  Overall
#49  Relational DBMS
Websiteallegrograph.cometcd.io
github.com/­etcd-io/­etcd
cloud.google.com/­spannertitan.thinkaurelius.com
Technical documentationfranz.com/­agraph/­support/­documentation/­current/­agraph-introduction.htmletcd.io/­docs
github.com/­etcd-io/­etcd/­tree/­master/­Documentation
cloud.google.com/­spanner/­docsgithub.com/­thinkaurelius/­titan/­wiki
DeveloperFranz Inc.GoogleAurelius, owned by DataStax
Initial release200420172012
Current release7.0.0, April 20203.4, August 2019
License infoCommercial or Open Sourcecommercial infoLimited community edition freeOpen Source infoApache Version 2.0commercialOpen Source infoApache license, version 2.0
Cloud-based only infoOnly available as a cloud servicenonoyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageGoJava
Server operating systemsLinux
OS X
Windows
FreeBSD
Linux
Windows infoexperimental
hostedLinux
OS X
Unix
Windows
Data schemeyes infoRDF schemasschema-freeyesyes
Typing infopredefined data types such as float or dateyesnoyesyes
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.no infobulk load of XML files possiblenono
Secondary indexesyesnoyesyes
SQL infoSupport of SQLSPARQL is used as query languagenoyes infoQuery statements complying to ANSI 2011no
APIs and other access methodsRESTful HTTP API
SPARQL
gRPC
JSON over HTTP
gRPC (using protocol buffers) API
JDBC infoAt present, JDBC supports read-only queries. No support for DDL or DML statements.
RESTful HTTP API
Java API
TinkerPop Blueprints
TinkerPop Frames
TinkerPop Gremlin
TinkerPop Rexster
Supported programming languagesC#
Clojure
Java
Lisp
Perl
Python
Ruby
Scala
.Net
C
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
Rust
Scala
Tcl
Go
Java
JavaScript (Node.js)
Python
Clojure
Java
Python
Server-side scripts infoStored proceduresyes infoJavaScript or Common Lispnonoyes
Triggersyesyes, watching key changesnoyes
Partitioning methods infoMethods for storing different data on different nodeswith FederationShardingyes infovia pluggable storage backends
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication
Source-replica replication
Using Raft consensus algorithm to ensure data replication with strong consistency among multiple replicas.Multi-source replication with 3 replicas for regional instances.yes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyes infousing Google Cloud Dataflowyes infovia Faunus, a graph analytics engine
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency or Eventual Consistency depending on configurationImmediate ConsistencyImmediate ConsistencyEventual Consistency
Immediate Consistency
Foreign keys infoReferential integritynonoyes infoby using interleaved tables, this features focuses more on performance improvements than on referential integrityyes infoRelationships in graph
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoACID infoStrict serializable isolationACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyes infoSupports various storage backends: Cassandra, HBase, Berkeley DB, Akiban, Hazelcast
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonono
User concepts infoAccess controlUsers with fine-grained authorization concept, user roles and pluggable authenticationnoAccess rights for users, groups and roles based on Google Cloud Identity and Access Management (IAM)User authentification and security via Rexster Graph Server
More information provided by the system vendor
AllegroGraphetcdGoogle Cloud SpannerTitan
Specific characteristicsKnowledge Graph Platform Leader FedShard - Designed for Entity-Event Knowledge Graph...
» more
Competitive advantagesAllegroGraph is uniquely suited to support adhoc queries through SPARQL, Prolog and...
» more
News

Gartner Case Study: Entity-Event Knowledge Graph for Powering AI Solutions (Montefiore)
15 March 2021

Understanding What Matters With Text Analytics and NLP
9 March 2021

KMWorld 100 Companies that Matter Most – Franz Inc.
9 March 2021

Maximizing Your Data Fabric’s ROI via Entity Data Modeling
24 February 2021

Data-Centric Architecture Forum – DCAF 2021
1 February 2021

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
AllegroGraphetcdGoogle Cloud SpannerTitan
DB-Engines blog posts

Graph DBMS increased their popularity by 500% within the last 2 years
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Recent citations in the news

Franz Announces Allegro NFS Server 7.0 for Windows
16 February 2021, Business Wire

Franz Releases AllegroGraph 7.1
12 February 2021, Database Trends and Applications

Using speech technology to make real-time decisions at KMWorld Connect 2020
17 November 2020, KMWorld Magazine

Franz Inc. Named a 2021 KMWorld 100 Company that Matters in Knowledge Management
22 March 2021, Business Wire

Franz's AllegroGraph 7 Gains Broad Recognition in 2020 as a Leading Knowledge Graph Solution
9 December 2020, Business Wire

provided by Google News

Distributed Key-Value Store etcd Graduates at CNCF
29 November 2020, InfoQ.com

etcd Data Store Project Key to Scaling Kubernetes Clusters
8 September 2020, Container Journal

Kubernetes' etcd data store becomes top-level CNCF project
24 November 2020, SiliconANGLE News

How Kubernetes works
6 May 2021, InfoWorld

Kubermatic Kubernetes Platform 2.17 intros automated backup and restore • DEVCLASS
30 April 2021, DevClass

provided by Google News

Google upgrades Cloud Spanner's encryption capabilities
22 April 2021, SiliconANGLE News

Google Cloud and Workspace get new batch of cybersecurity features
28 April 2021, SiliconANGLE News

Google launches a new Cloud region in Warsaw
15 April 2021, VanillaPlus

Google launches new Cloud region in Warsaw
14 April 2021, Information Age

Ready to be a GCP architect? Try this quiz and see - TechTarget
16 April 2021, TechTarget

provided by Google News

Graph Database Market Current Status and 2027 Future Projections- SAP, Franz Inc(AllegroGraph), Datastax, Marklogic, triAGENS GmbH(Arango DB), Microsoft – Test & Measurement
13 May 2021, Test & Measurement

Graph Database Market Size, Share, Growth, Trends and Forecast To 2026 – Clark County Blog
6 May 2021, Clark County Blog

Beyond Titan: The Evolution of DataStax's New Graph Database
21 June 2016, Datanami

JanusGraph Picks Up Where TitanDB Left Off
13 January 2017, Datanami

DataStax acquires Aurelius, the startup behind the Titan graph database
3 February 2015, VentureBeat

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