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DBMS > MemSQL vs. Redis vs. VoltDB

System Properties Comparison MemSQL vs. Redis vs. VoltDB

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Editorial information provided by DB-Engines
NameMemSQL  Xexclude from comparisonRedis  Xexclude from comparisonVoltDB  Xexclude from comparison
DescriptionMySQL wire-compliant distributed RDBMS that combines an in-memory row-oriented and a disc-based column-oriented storageIn-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.Distributed In-Memory NewSQL RDBMS infoUsed for OLTP applications with a high frequency of relatively simple transactions, that can hold all their data in memory
Primary database modelRelational DBMSKey-value store infoMultiple data types and a rich set of operations, as well as configurable data expiration, eviction and persistenceRelational DBMS
Secondary database modelsDocument storeDocument store infowith Redis Modules
Graph DBMS infowith Redis Modules
Search engine infowith Redis Modules
Time Series DBMS infowith Redis Modules
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.73
Rank#76  Overall
#40  Relational DBMS
Score146.38
Rank#7  Overall
#1  Key-value stores
Score2.25
Rank#107  Overall
#55  Relational DBMS
Websitewww.memsql.comredis.iowww.voltdb.com
Technical documentationdocs.memsql.comredis.io/­documentationdocs.voltdb.com
DeveloperMemSQL Inc.Salvatore Sanfilippo infoDevelopment sponsored by Redis LabsVoltDB Inc.
Initial release201320092010
Current release6.7, November 20185.0.4, March 20198.4, January 2019
License infoCommercial or Open Sourcecommercial infofree developer edition availableOpen Source infoBSD 3-Clause, commercial license availableOpen Source infoAGPL for Community Edition, commercial license for Enterprise, AWS, and Pro Editions
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++CJava, C++
Server operating systemsLinux info64 bit version requiredBSD
Linux
OS X
Windows infoported and maintained by Microsoft Open Technologies, Inc.
Linux
OS X infofor development
Data schemeyesschema-freeyes
Typing infopredefined data types such as float or dateyespartial infoSupported data types are strings, hashes, lists, sets and sorted sets, bit arrays, hyperloglogs and geospatial indexesyes
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 indexesyesyes infowith RediSearch moduleyes
SQL infoSupport of SQLyes, but no triggers and foreign keysnoyes infoonly a subset of SQL 99
APIs and other access methodsJDBC
ODBC
proprietary protocol infoRESP - REdis Serialization ProtocolJava API
RESTful HTTP/JSON API
JDBC
Supported programming languagesBash
C
C#
Java
JavaScript (Node.js)
Python
C
C#
C++
Clojure
Crystal
D
Dart
Elixir
Erlang
Fancy
Go
Haskell
Haxe
Java
JavaScript (Node.js)
Lisp
Lua
MatLab
Objective-C
OCaml
Pascal
Perl
PHP
Prolog
Pure Data
Python
R
Rebol
Ruby
Rust
Scala
Scheme
Smalltalk
Swift
Tcl
Visual Basic
C#
C++
Erlang infonot officially supported
Go
Java
JavaScript infoNode.js
PHP
Python
Server-side scripts infoStored proceduresyesLuaJava
Triggersnonono
Partitioning methods infoMethods for storing different data on different nodesShardingShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesMaster-slave replicationMaster-slave replication infoChained replication is supported
Multi-master replication infowith Redis Enterprise Pack
Master-master replication
Master-slave replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency only within each nodeStrong eventual consistency with CRDTs
Eventual Consistency
Foreign keys infoReferential integritynonono infoFOREIGN KEY constraints are not supported
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID infoOnly isolation level: READ COMMITEDOptimistic locking, atomic execution of commands blocks and scriptsACID infoTransactions are executed single-threaded within stored procedures
Concurrency infoSupport for concurrent manipulation of datayes, multi-version concurrency control (MVCC)yes infoData access is serialized by the serveryes infoData access is serialized by the server
Durability infoSupport for making data persistentyesyes infoConfigurable mechanisms for persistency via snapshots and/or operations logsyes infoSnapshots and command logging
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlfine grained access rights according to SQL-standardSimple password-based access control infoAccess control lists and SSL are available in the commercial versionUsers and roles with access to stored procedures
More information provided by the system vendor
MemSQLRedisVoltDB
Specific characteristicsMemSQL is The No Limits Databaseā„¢, powering modern applications and analytical systems...
» more
Redis, benchmarked as the world's fastest database, reduces application complexity,...
» more
Competitive advantagesPerformance - Shattering the Trillion-Rows-Per-Second Barrier Fast data ingest -...
» more
Redis is an in-memory database platform offering native support of wide range of...
» more
Typical application scenariosReal-Time Analytics Internet of Things Personalization and Recommendations Risk Management...
» more
Redis powers personalization, real-time fraud detection, IoT, e-commerce, real-time...
» more
Key customersComcast - Real-time Stream Processing Architecture DellEMC - Getting it Right Exactly...
» more
Verizon, Vodafone, Atlassian, Trip Advisor, Jet.com, Nokia, Samsung, HTC, Docker,...
» more
Market metricsCustomers in various industries worldwide -- US and International Industry Solutions:...
» more
Licensing and pricing modelsF ree Tier and Enterprise Edition
» more
The licensing model is subscription based. Redis Enterprise Cloud is priced according...
» more

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and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

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3rd partiesRedis Labs is the open source home and the provider of enterprise-class Redis.
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ScaleGrid: Fully managed Redis-as-a-Service in the cloud.
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More resources
MemSQLRedisVoltDB
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Recent citations in the news

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