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DBMS > etcd vs. Memcached

System Properties Comparison etcd vs. Memcached

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Our visitors often compare etcd and Memcached with Redis, Cassandra and Amazon DynamoDB.

Editorial information provided by DB-Engines
Nameetcd  Xexclude from comparisonMemcached  Xexclude from comparison
DescriptionA distributed reliable key-value storeIn-memory key-value store, originally intended for caching
Primary database modelKey-value storeKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score10.19
Rank#46  Overall
#5  Key-value stores
Score26.02
Rank#31  Overall
#4  Key-value stores
Websiteetcd.io
github.com/­etcd-io/­etcd
www.memcached.org
Technical documentationetcd.io/­docs
github.com/­etcd-io/­etcd/­tree/­master/­Documentation
github.com/­memcached/­memcached/­wiki
DeveloperDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournal
Initial release2003
Current release3.4, August 20191.6.9, November 2020
License infoCommercial or Open SourceOpen Source infoApache Version 2.0Open Source infoBSD license
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 languageGoC
Server operating systemsFreeBSD
Linux
Windows infoexperimental
FreeBSD
Linux
OS X
Unix
Windows
Data schemeschema-freeschema-free
Typing infopredefined data types such as float or datenono
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 indexesnono
SQL infoSupport of SQLnono
APIs and other access methodsgRPC
JSON over HTTP
Proprietary protocol
Supported programming languages.Net
C
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
Rust
Scala
Tcl
.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
Server-side scripts infoStored proceduresnono
Triggersyes, watching key changesno
Partitioning methods infoMethods for storing different data on different nodesnone
Replication methods infoMethods for redundantly storing data on multiple nodesUsing Raft consensus algorithm to ensure data replication with strong consistency among multiple replicas.none infoRepcached, a Memcached patch, provides this functionallity
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanono
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesno
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.no
User concepts infoAccess controlnoyes infousing SASL (Simple Authentication and Security Layer) protocol

More information provided by the system vendor

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More resources
etcdMemcached
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Recent citations in the news

Service Discovery Software Market Size, Application Analysis, Regional Outlook | HashiCorp, traefik, Apache, etcd, GRPC, etc – Puck77
20 October 2021, Puck77

All about performance: etcd 3.5 looks to make Kubernetes users happy • DEVCLASS
17 June 2021, DevClass

Common Kubernetes terminology you should know
8 October 2021, TechTarget

Cloud Native Computing Foundation Announces Agenda for KubeCon + CloudNativeCon + Open Source Summit China Virtual 2021
28 September 2021, Yahoo Finance

Distributed Key-Value Store etcd Graduates at CNCF
29 November 2020, InfoQ.com

provided by Google News

Google Releases Memorystore for Memcached into General Availability
9 March 2021, InfoQ.com

Microsoft Azure fends off huge DDoS Attack
12 October 2021, ZDNet

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

Memcached DDoS Attacks Slow Down as Patching Ramps Up | eWEEK
9 March 2018, eWeek

What are memcached servers, and why are they being used to launch record-setting DDoS attacks?
6 March 2018, GeekWire

provided by Google News

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