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DBMS > Amazon DynamoDB vs. Memcached vs. RocksDB

System Properties Comparison Amazon DynamoDB vs. Memcached vs. RocksDB

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Editorial information provided by DB-Engines
NameAmazon DynamoDB  Xexclude from comparisonMemcached  Xexclude from comparisonRocksDB  Xexclude from comparison
DescriptionHosted, scalable database service by Amazon with the data stored in Amazons cloudIn-memory key-value store, originally intended for cachingEmbeddable persistent key-value store optimized for fast storage (flash and RAM)
Primary database modelDocument store
Key-value store
Key-value storeKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score85.40
Rank#15  Overall
#2  Document stores
#2  Key-value stores
Score24.45
Rank#33  Overall
#4  Key-value stores
Score4.61
Rank#86  Overall
#14  Key-value stores
Websiteaws.amazon.com/­dynamodbwww.memcached.orgrocksdb.org
Technical documentationdocs.aws.amazon.com/­dynamodbgithub.com/­memcached/­memcached/­wikigithub.com/­facebook/­rocksdb/­wiki
DeveloperAmazonDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalFacebook, Inc.
Initial release201220032013
Current release1.6.17, August 20227.3.1, June 2022
License infoCommercial or Open Sourcecommercial infofree tier for a limited amount of database operationsOpen Source infoBSD licenseOpen Source infoBSD
Cloud-based only infoOnly available as a cloud serviceyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCC++
Server operating systemshostedFreeBSD
Linux
OS X
Unix
Windows
Linux
Data schemeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or dateyesnono
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 indexesyesnono
SQL infoSupport of SQLnonono
APIs and other access methodsRESTful HTTP APIProprietary protocolC++ API
Java API
Supported programming languages.Net
ColdFusion
Erlang
Groovy
Java
JavaScript
Perl
PHP
Python
Ruby
.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
C
C++
Go
Java
Perl
Python
Ruby
Server-side scripts infoStored proceduresnonono
Triggersyes infoby integration with AWS Lambdanono
Partitioning methods infoMethods for storing different data on different nodesShardingnonenone
Replication methods infoMethods for redundantly storing data on multiple nodesyesnone infoRepcached, a Memcached patch, provides this functionallitynone
MapReduce infoOffers an API for user-defined Map/Reduce methodsno infomay be implemented via Amazon Elastic MapReduce (Amazon EMR)nono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency infocan be specified for read operations
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID infoACID across one or more tables within a single AWS account and regionnoyes
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesnoyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes
User concepts infoAccess controlAccess rights for users and roles can be defined via the AWS Identity and Access Management (IAM)yes infousing SASL (Simple Authentication and Security Layer) protocolno

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Related products and services
3rd partiesCData: Connect to Big Data & NoSQL through standard Drivers.
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Speedb: A high performance RocksDB-compliant key-value store optimized for write-intensive workloads.
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We invite representatives of vendors of related products to contact us for presenting information about their offerings here.

More resources
Amazon DynamoDBMemcachedRocksDB
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Recent citations in the news

DynamoDB Data Transformation Safety: from Manual Toil to Automated and Open Source
23 November 2022, InfoQ.com

Founded by Former AWS DynamoDB Engineering Leadership, Momento Reinvents Caching for Cloud Databases With $15 Million in Seed Funding Led by Bain Capital Ventures
2 November 2022, GlobeNewswire

Amazon DynamoDB - Evolution of a Hyper-Scale Cloud Database Service: Akshat Vig at QCon SF 2022
3 November 2022, InfoQ.com

Meet the database that supports Amazon.com
14 November 2022, The Register

Momento Announces Serverless Cache Service
13 November 2022, InfoQ.com

provided by Google News

How Pinterest Tuned Memcached for Big Performance Gains
16 May 2022, thenewstack.io

Momento accelerates databases with serverless data caching
3 November 2022, TechTarget

Business email platform Zimbra patches memcached injection flaw that imperils user credentials
16 June 2022, The Daily Swig

Memcached DDoS: The biggest, baddest denial of service attacker yet
1 March 2018, ZDNet

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

provided by Google News

Pliops Unveils Accelerated Key-Value Store That Boosts RocksDB Performance by 20x at OCP Global Summit
18 October 2022, GlobeNewswire

Meta’s Velox Means Database Performance Is Not Subject To Interpretation
31 August 2022, The Next Platform

Did Rockset Just Solve Real-Time Analytics?
25 August 2021, Datanami

Swim Maintains a Steady State Amid Fast-Moving Data
8 August 2022, Datanami

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