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DBMS > AllegroGraph

AllegroGraph Systemeigenschaften

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NameAllegroGraph
KurzbeschreibungHoch performanter, persistenter RDF Store mit Erweiterungen für Graph DBMS
Primäres DatenbankmodellGraph DBMS
RDF Store
DB-Engines Ranking infomisst die Popularität von Datenbankmanagement- systemenranking trend
Trend Chart
Punkte0,66
Rang#159  Overall
#10  Graph DBMS
#5  RDF Stores
Websitefranz.com/­agraph/­allegrograph
Technische Dokumentationfranz.com/­agraph/­support/­documentation/­current/­agraph-introduction.html
EntwicklerFranz Inc.
Erscheinungsjahr2004
Aktuelle Version6.4.2, Juni 2018
Lizenz infoCommercial or Open Sourcekommerziell infoLimitierte Community Edition gratis
Ausschließlich ein Cloud-Service infoNur als Cloud-Service verfügbarnein
Server BetriebssystemeLinux
OS X
Windows
Datenschemaja infoRDF schemas
Typisierung infovordefinierte Datentypen, z.B. float oder dateja
XML Unterstützung infoVerarbeitung von Daten in XML Format, beispielsweise Speicherung von XML-Strukturen und/oder Unterstützung von XPath, XQuery, XSLTnein infoBulk load from XML files möglich
Sekundärindizesja
SQL infoSupport of SQLSPARQL is used as query language
APIs und andere ZugriffskonzepteRESTful HTTP API
SPARQL
Unterstützte ProgrammiersprachenC#
Clojure
Java
Lisp
Perl
Python
Ruby
Scala
Server-seitige Scripts infoStored Proceduresja infoJavaScript or Common Lisp
Triggersja
Partitionierungsmechanismen infoMethoden zum Speichern von unterschiedlichen Daten auf unterschiedlichen Knotenmittels Federation
Replikationsmechanismen infoMethoden zum redundanten Speichern von Daten auf mehreren KnotenMaster-Slave Replikation
Multi-Master Replikation
MapReduce infoBietet ein API für Map/Reduce Operationennein
Konsistenzkonzept infoMethoden zur Sicherstellung der Konsistenz in einem verteilten SystemImmediate Consistency or Eventual Consistency depending on configuration
Fremdschlüssel inforeferenzielle Integritätnein
Transaktionskonzept infoUnterstützung zur Sicherstellung der Datenintegrität bei nicht-atomaren DatenmanipulationenACID
Concurrency infoUnterstützung von gleichzeitig ausgeführten Datenmanipulationenja
Durability infoDauerhafte Speicherung der Datenja
In-Memory Unterstützung infoGibt es Möglichkeiten einige oder alle Strukturen nur im Hauptspeicher zu haltennein
Berechtigungskonzept infoZugriffskontrolleBenutzer mit feingranularem Berechtigungskonzept und Benutzerrollen
Weitere Informationen bereitgestellt vom Systemhersteller
AllegroGraph
Specific characteristics
  • Knowledge Graph Platform Leader

  • AllegroGraph is 100 percent ACID, supporting Transactions: Commit, Rollback, and Checkpointing.

  • Industry Leading Security - Triple Level Security with Triple Attributes and Security Filters

  • Gruff - Graph Visualization, Generate SPARQL and Prolog queries visually.

  • AllegroGraph server can be scripted using the JavaScript API

  • Full and Fast Recoverability

  • 100% Read Concurrency, Near Full Write Concurrency

  • Online BackupsPoint-in-Time RecoveryReplication, Warm Standby

  • Dynamic and Automatic Indexing – All committed triples are always indexed (7 indices)

  • Advanced Text Indexing – Text indexing per predicate

  • SOLR and MongoDB Integration

  • SPIN support (SPARQL Inferencing Notation). The SPIN API allows you to define a function in terms of a SPARQL query and then call that function in other SPARQL queries. These SPIN functions can appear in FILTERs and can also be used to compute values in assignment and select expressions.

  • All Clients based on REST Protocol â€“ Java SesameJava JenaPythonC#ClojurePerlRubyScala, and Lisp clients

  • Completely multi-processing based (SMP) – Automatic Resource Management for all processors and disks, and optimized memory use. See the performance tuning guide here, and server configuration guide here

  • Column-based compression of indices – reduced paging, better performance

  • Cloud-Hosted AllegroGraph - Amazon EC2

  • AllegroGraph provides a novel mechanism for efficient storage and retrieval of multi-dimensional data, and spatial data in particular - N-dimensional Features

Competitive advantages

​​AllegroGraph is uniquely suited to support adhoc queries through SPARQL, Prolog and languages like JavaScript. AllegroGraph uses sorted quintuple indices that will index every primary and non-primary field. So users never have to worry about whether a certain field is indexed or not. There are 6 default indices that are in general sufficient for set based query index to execute almost any adhoc query.

One of the most powerful features of AllegroGraph is that it is possible to mix Geospatial, Temporal, Social Network Analytics, and Reasoning, all in the same query (SPARQL or Prolog). An example:

“Find whether the most important friend of Sonya (using the SNA centrality statistic) made a payment within a 100 miles of Rotterdam, NY (using geospatial) within the last 10 years (temporal).” 

This would be impossible in any other graph database, RDF store, document store or Hadoop like solution in such a concise way.

  • AllegroGraph - Combines GeospatialTemporal, and SNA into a single â€œGolden” query.

  • W3C standards based query language and data format via SPARQL and RDF.

  • ​GRUFF - Data explorer, Graph Visualization, Graphical Query Generation

  • AllegroGraph has a built-in Rule Based System on top of an ISO compliant Prolog.  Users can write rules and stored procedures in Prolog and make them available to other rules and/or users.

  • ​Triple Level Security

  • True Durability in AllegroGraph - Many RDF and Graph DBMS systems to NOT write transaction logs for every transaciton, so in essence these databases are NOT durable.   Experiment - Perform multiple commits per second and run monitor "vmstat 1" to look at blocks in and out (column - io bi/bo).​

Neuigkeiten

Triple Attributes
2. Mai 2018

Allegro "Knowledge" Graph News - March 2018
7. März 2018

AllegroGraph v6.4 - Now Available
23. Januar 2018

AllegroGraph News - December 2017
20. Dezember 2017

AllegroGraph News - November 2017
2. November 2017

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Weitere Ressourcen
AllegroGraph
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Know the Graph Database Report on Global and United States Market Growth by 2025 with Type and Application ...
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Franz Inc.'s AllegroGraph 6 to be Available on Cloudera Certified Technology Program
24. Februar 2016, CIOReview (press release)

Semantic data lake architecture in healthcare and beyond
21. August 2017, ZDNet

Franz launches Triple Attributes graph database security
7. November 2017, CryptoNinjas

bereitgestellt von Google News

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