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DBMS > Cassandra vs. GRAKN.AI

System Properties Comparison Cassandra vs. GRAKN.AI

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Editorial information provided by DB-Engines
NameCassandra  Xexclude from comparisonGRAKN.AI  Xexclude from comparison
DescriptionWide-column store based on ideas of BigTable and DynamoDB infoOptimized for write accessGrakn is a distributed, hyper-relational database for managing complex data that serves as a knowledge base for cognitive/AI systems.
Primary database modelWide column storeGraph DBMS
Relational DBMS infoOften described as a 'hyper-relational' database, since it implements the 'Entity-Relationship Paradigm' to manage complex data structures and ontologies.
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score123.23
Rank#10  Overall
#1  Wide column stores
Score0.20
Rank#256  Overall
#21  Graph DBMS
#120  Relational DBMS
Websitecassandra.apache.orggrakn.ai
Technical documentationcassandra.apache.org/­doc/­latestdev.grakn.ai/­docs
DeveloperApache Software Foundation infoApache top level project, originally developped by FacebookGrakn Labs Ltd
Initial release20082016
Current release3.11.5, October 20191.5.8, August 2019
License infoCommercial or Open SourceOpen Source infoApache version 2Open Source infoGPL Version 3, commercial licenses available
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJava
Server operating systemsBSD
Linux
OS X
Windows
Linux
OS X
Windows
Data schemeschema-freeyes
Typing infopredefined data types such as float or dateyesyes
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 indexesrestricted infoonly equality queries, not always the best performing solutionyes
SQL infoSupport of SQLSQL-like SELECT, DML and DDL statements (CQL)no
APIs and other access methodsProprietary protocol infoCQL (Cassandra Query Language, an SQL-like language)
Thrift
console (shell)
gRPC protocol
Workbase (visualisation software)
Supported programming languagesC#
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript infoNode.js
Perl
PHP
Python
Ruby
Scala
All JVM based languages
Groovy
Java
JavaScript (Node.js)
Python
Scala
Server-side scripts infoStored proceduresnono
Triggersyesno
Partitioning methods infoMethods for storing different data on different nodesSharding infono "single point of failure"Sharding infoby using Cassandra
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infoRepresentation of geographical distribution of servers is possibleMaster-master replication infoby using Cassandra
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesyes infoby using Apache Kafka and Apache Zookeeper
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency infocan be individually decided for each write operation
Immediate Consistency
Foreign keys infoReferential integritynono infosubstituted by the relationship feature
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infoAtomicity and isolation are supported for single operationsACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nono
User concepts infoAccess controlAccess rights for users can be defined per objectyes infoat REST API level; other APIs in progress
More information provided by the system vendor
CassandraGRAKN.AI
Specific characteristicsApache Cassandra is the leading NoSQL, distributed database management system, well...
» more
Grakn is the knowledge graph to organise complex networks of data and making it queryable,...
» more
Competitive advantagesNo single point of failure ensures 100% availability . Operational simplicity for...
» more
Expressive and flexible data model: The meta-schema of Grakn allows for modelling...
» more
Typical application scenariosInternet of Things (IOT), fraud detection applications, recommendation engines, product...
» more
Life sciences : Grakn makes working with biological data much easier and accelerates...
» more
Key customersApple, Netflix, Uber, ING,, Intuit,Fidelity, NY Times, Outbrain, BazaarVoice, Best...
» more
Market metricsCassandra is used by 40% of the Fortune 100.
» more
Licensing and pricing modelsApache license  Pricing for commercial distributions provided by DataStax and available...
» more
AGPL and Commercial . The commercial license is priced based on cluster resources...
» more
Related products and services
3rd partiesDataStax Enterprise: Apache Cassandra for enterprises.
» more

CData: Connect to Big Data & NoSQL through standard Drivers.
» more

Instaclustr: Fully Hosted and Managed Apache Cassandra
» more

We invite representatives of vendors of related products to contact us for presenting information about their offerings here.

More resources
CassandraGRAKN.AI
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Conferences and events

DataStax Accelerate
San Diego, California, USA, 11-13 May 2020

Grakn Cosmos, the universal conference of technologies built using Grakn
London, UK, 6-7 February 2020

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All things database: Q&A with DataStax's Jonathan Ellis
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15 March 2017, DZone News

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20 September 2017, Cloud Pro

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