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DBMS > Memcached vs. Redis

System Properties Comparison Memcached vs. Redis

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Our visitors often compare Memcached and Redis with NCache, Ehcache and Hazelcast.

Editorial information provided by DB-Engines
NameMemcached  Xexclude from comparisonRedis  Xexclude from comparison
DescriptionIn-memory key-value store, originally intended for cachingIn-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.
Primary database modelKey-value storeKey-value store infoMultiple data types and a rich set of operations, as well as configurable data expiration, eviction and persistence
Secondary database modelsDocument 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
Score24.81
Rank#27  Overall
#4  Key-value stores
Score145.64
Rank#8  Overall
#1  Key-value stores
Websitewww.memcached.orgredis.io
Technical documentationgithub.com/­memcached/­memcached/­wikiredis.io/­documentation
DeveloperDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalSalvatore Sanfilippo infoDevelopment sponsored by Redis Labs
Initial release20032009
Current release1.6.0, March 20206.0.1, May 2020
License infoCommercial or Open SourceOpen Source infoBSD licenseOpen Source infoBSD 3-Clause, commercial license available
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCC
Server operating systemsFreeBSD
Linux
OS X
Unix
Windows
BSD
Linux
OS X
Windows infoported and maintained by Microsoft Open Technologies, Inc.
Data schemeschema-freeschema-free
Typing infopredefined data types such as float or datenopartial 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.no
Secondary indexesnoyes infowith RediSearch module
SQL infoSupport of SQLnono
APIs and other access methodsProprietary protocolproprietary protocol infoRESP - REdis Serialization Protocol
Supported programming languages.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
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
Server-side scripts infoStored proceduresnoLua
Triggersnono
Partitioning methods infoMethods for storing different data on different nodesnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoRepcached, a Memcached patch, provides this functionallityMaster-slave replication infoChained replication is supported
Multi-master replication infowith Redis Enterprise Pack
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Strong eventual consistency with CRDTs
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoOptimistic locking, atomic execution of commands blocks and scripts
Concurrency infoSupport for concurrent manipulation of datayesyes infoData access is serialized by the server
Durability infoSupport for making data persistentnoyes 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.yes
User concepts infoAccess controlyes infousing SASL (Simple Authentication and Security Layer) protocolSimple password-based access control infoAccess control lists and SSL are available in the commercial version

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More resources
MemcachedRedis
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Recent citations in the news

Google Cloud launches a managed Memcached service
2 April 2020, TechCrunch

Google Cloud rolls out Memcached database caching – Blocks and Files
4 April 2020, Blocks and Files

AWS, Microsoft and Google should retire these cloud services
2 June 2020, TechTarget

Khan Academy's Scaling Story to 2.5x Traffic Using a Serverless Architecture and CDN
24 May 2020, InfoQ.com

Buffer Overflow in Memcached Fixed | Decipher
24 March 2020, Decipher

provided by Google News

Database Week: Microsoft OEMs Redis Enterprise for Azure
12 May 2020, ZDNet

Redis Labs expands database to real-time data processing
13 May 2020, TechTarget

Redis Labs Releases Platform with Real-Time AI Capabilities
27 May 2020, Database Trends and Applications

Business Intelligence and Analytics News, Trends, Analysis
3 June 2020, Database Trends and Applications

Live analytics without vendor lock-in? It's more likely than you think, says Redis Labs
26 May 2020, The Register

provided by Google News

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