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DBMS > Cassandra vs. CouchDB vs. MongoDB vs. RavenDB vs. Redis

System Properties Comparison Cassandra vs. CouchDB vs. MongoDB vs. RavenDB vs. Redis

Editorial information provided by DB-Engines
NameCassandra  Xexclude from comparisonCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"  Xexclude from comparisonMongoDB  Xexclude from comparisonRavenDB  Xexclude from comparisonRedis  Xexclude from comparison
DescriptionWide-column store based on ideas of BigTable and DynamoDB infoOptimized for write accessA native JSON - document store inspired by Lotus Notes, scalable from globally distributed server-clusters down to mobile phones.One of the most popular document stores.NET-based Document StoreIn-memory data structure store, used as database, cache and message broker infoRedis focuses on performance so most of its design decisions prioritize high performance and very low latencies.
Database modelWide column storeDocument storeDocument storeDocument storeKey-value store infoMultiple data types and a rich set of operations, as well as configurable data expiration, eviction and persistence
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score124.12
Rank#8  Overall
#1  Wide column stores
Score22.15
Rank#27  Overall
#4  Document stores
Score332.77
Rank#5  Overall
#1  Document stores
Score3.50
Rank#62  Overall
#12  Document stores
Score121.51
Rank#9  Overall
#1  Key-value stores
Websitecassandra.apache.orgcouchdb.apache.orgwww.mongodb.comravendb.netredis.io
Technical documentationwww.datastax.com/­docswiki.apache.org/­couchdbdocs.mongodb.com/­manualravendb.net/­docsredis.io/­documentation
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MongoDB: MongoDB Atlas
Jetware: MongoDB 3.4
mLab: mLab
DeveloperApache Software Foundation infoApache top level project, originally developped by FacebookApache Software Foundation infoApache top-level project, originally developed by Damien Katz, a former Lotus Notes developerMongoDB, IncHibernating RhinosSalvatore Sanfilippo infoDevelopment sponsored by Redis Labs
Initial release20082005200920102009
Current release3.11.0, June 20172.0.0, September 20163.4.6, July 20174.0.0, July 2017
License infoCommercial or Open SourceOpen Source infoApache version 2Open Source infoApache version 2Open Source infoAGPL version 3, commercial license availableOpen Source infoAGPL version 3, commercial license availableOpen Source infoBSD 3-Clause, commercial license available
Cloud-based infoOnly available as a cloud servicenonononono
Implementation languageJavaErlangC++.NET languagesC
Server operating systemsBSD
Linux
OS X
Windows
Android
BSD
Linux
OS X
Solaris
Windows
Linux
OS X
Solaris
Windows
Linux infoplanned for mid 2017
Windows
BSD
Linux
OS X
Windows infoported and maintained by Microsoft Open Technologies, Inc.
Data schemeschema-freeschema-freeschema-free infoAlthough schema-free, documents of the same collection often follow the same structureschema-freeschema-free
Typing infopredefined data types such as float or dateyesnoyes infostring, integer, double, boolean, date, object_idnopartial infoSupported data types are strings, hashes, lists, sets and sorted sets, bit arrays, hyperloglogs and geospatial indexes
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 infovia viewsyesyesno
SQL infoSupport of (almost entire) SQL standard (DML, DDL and DCL statements)nonononono
APIs and other access methodsProprietary protocol infoCQL (Cassandra Query Language, an SQL-like language) and an API based on Apache ThriftRESTful HTTP/JSON APIproprietary protocol using JSON.NET Client API
Java Client API
Python Client API
RESTful HTTP API
proprietary protocol infoRESP - REdis Serialization Protocol
Supported programming languagesC#
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript infoNode.js
Perl
PHP
Python
Ruby
Scala
C
C#
ColdFusion
Erlang
Haskell
Java
JavaScript
Lisp
Lua
Objective-C
OCaml
Perl
PHP
PL/SQL
Python
Ruby
Smalltalk
Actionscript infoinofficial driver
C
C#
C++
Clojure infoinofficial driver
ColdFusion infoinofficial driver
D infoinofficial driver
Dart infoinofficial driver
Delphi infoinofficial driver
Erlang
Go infoinofficial driver
Groovy infoinofficial driver
Haskell
Java
JavaScript
Lisp infoinofficial driver
Lua infoinofficial driver
MatLab infoinofficial driver
Perl
PHP
PowerShell infoinofficial driver
Prolog infoinofficial driver
Python
R infoinofficial driver
Ruby
Scala
Smalltalk infoinofficial driver
.Net
Java
Python
C
C#
C++
Clojure
Crystal
D
Dart
Elixir
Erlang
Fancy
Go
Haskell
Haxe
Java
JavaScript (Node.js)
Lisp
Lua
MatLab
Objective-C
OCaml infoNode.js
Perl
PHP
Prolog
Pure Data
Python
R
Rebol
Ruby
Rust
Scala
Scheme
Smalltalk
Tcl
Server-side scripts infoStored proceduresnoView functions in JavaScriptJavaScriptyesLua
Triggersyesyesnoyesno
Partitioning methods infoMethods for storing different data on different nodesSharding infono "single point of failure"Sharding infoimproved architecture with release 2.0ShardingShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infoRepresentation of geographical distribution of servers is possibleMaster-master replication
Master-slave replication
Master-slave replicationMaster-master replication infowith client-side conflict resolutionMaster-slave replication infoChained replication is supported
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesyesyesyes infoMapReduce functions can be defined in Linqno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency infocan be individually decided for each write operation
Eventual ConsistencyEventual Consistency
Immediate Consistency infocan be individually decided for each write operation
Eventual ConsistencyEventual Consistency
Foreign keys infoReferential integritynonono infotypically not used, however similar functionality with DBRef possiblenono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infoAtomicity and isolation are supported for single operationsno infoatomic operations within a single document possibleno infoatomic operations within a single document possibleACIDOptimistic locking, atomic execution of commands blocks and scripts
Concurrency infoSupport for concurrent manipulation of datayesyes infostrategy: optimistic lockingyesyesyes infoData access is serialized by the server
Durability infoSupport for making data persistentyesyesyes infooptionalyesyes infoConfigurable mechanisms for persistency via snapshots and/or operations logs
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes infoIn-memory storage engine introduced with MongoDB version 3.2yes
User concepts infoAccess controlAccess rights for users can be defined per objectAccess rights for users can be defined per databaseAccess rights for users and rolesAccess control on document level using the Authorization BundleSimple password-based access control infoAccess control lists and SSL are available in the commercial version
More information provided by the system vendor
CassandraCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"MongoDBRavenDBRedis
Specific characteristicsApache Cassandra is the leading NoSQL, distributed database management system driving...
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MongoDB is the next-generation database that helps businesses transform their industries...
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Self Tuning, Built-in Auto Indexing, Automatic Batching, Client-Server Chatter Protection,...
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Redis, benchmarked as the world’s fastest database, reduces application complexity,...
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Competitive advantagesNo single point of failure ensures 100% availability . Operational simplicity for...
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By offering the best of traditional databases as well as the flexibility, scale,...
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Fully Transactional ACID
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Redis is an in-memory database platform offering native support of wide range of...
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Typical application scenariosInternet of Things (IOT), fraud detection applications, recommendation engines, product...
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Internet of Things (Bosch, Silver Spring Networks) Mobile (The Weather Channel, ADP,...
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ecommerce, financial , CRM, Travel, healthcare
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Redis powers personalization, real-time fraud detection, IoT, e-commerce, real-time...
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Key customersBarracuda Networks, NY Times, Outbrain, BazaarVoice, Best Buy, Comcast, eBay, Hulu,...
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ADP, Adobe, AstraZeneca, BBVA, Bosch, Cisco, CERN, Department of Veteran Affairs,...
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Toyota, Vodafone, Medicaid, Nomura, RMS Automotive, MSNBC, Pluralsight, JetBrains
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Verizon, Vodafone, Atlassian, Trip Advisor, Jet.com, Nokia, Samsung, HTC, Docker,...
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Market metricsCassandra is used by a quarter of the Fortune 100
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20 million downloads (growing at thousands downloads per day). 2,000+ customers including...
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Redis Labs serves over 60,000 customers globally and is consistently ranked as a...
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Licensing and pricing modelsApache license  Pricing for commercial distributions provided by DataStax and available...
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MongoDB database server: Free Software Foundation’s GNU AGPL v3.0. Commercial licenses...
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The licensing model is subscription based. Redis Enterprise Cloud is priced according...
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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.

3rd party products and services
3rd partiesInstaclustr: Fully Hosted and Managed Apache Cassandra
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CData: Connect to Big Data & NoSQL through standard Drivers.
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Progress DataDirect: Data connectivity across standard SQL and REST
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Studio 3T: The world's favorite IDE for working with MongoDB
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CData: Connect to Big Data & NoSQL through standard Drivers.
» more

Progress DataDirect: Data connectivity across standard SQL and REST
» more
Redis Labs is the open source home and the provider of enterprise-class Redis.
» more

We invite representatives of 3rd party vendors to contact us for presenting information about their offerings here.

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CassandraCouchDB infostands for "Cluster Of Unreliable Commodity Hardware"MongoDBRavenDBRedis
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