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DBMS > Microsoft Azure Cosmos DB vs. RocksDB vs. TerarkDB

System Properties Comparison Microsoft Azure Cosmos DB vs. RocksDB vs. TerarkDB

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Editorial information provided by DB-Engines
NameMicrosoft Azure Cosmos DB infoformer name was Azure DocumentDB  Xexclude from comparisonRocksDB  Xexclude from comparisonTerarkDB  Xexclude from comparison
DescriptionGlobally distributed, horizontally scalable, multi-model database serviceEmbeddable persistent key-value store optimized for fast storage (flash and RAM)A key-value store forked from RocksDB with advanced compression algorithms. It can be used standalone or as a storage engine for MySQL and MongoDB
Primary database modelDocument store
Graph DBMS
Key-value store
Wide column store
Key-value storeKey-value store
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score41.38
Rank#27  Overall
#4  Document stores
#2  Graph DBMS
#3  Key-value stores
#3  Wide column stores
Score4.29
Rank#87  Overall
#15  Key-value stores
Score0.00
Rank#357  Overall
#56  Key-value stores
Websiteazure.microsoft.com/­services/­cosmos-dbrocksdb.orggithub.com/­Terark/­terarkdb
Technical documentationdocs.microsoft.com/­azure/­cosmos-dbgithub.com/­facebook/­rocksdb/­wikigithub.com/­Terark/­terarkdb/­wiki
DeveloperMicrosoftFacebook, Inc.Terark
Initial release201420132016
Current release7.3.1, June 2022
License infoCommercial or Open SourcecommercialOpen Source infoBSDcommercial inforestricted open source version available
Cloud-based only infoOnly available as a cloud serviceyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++C++
Server operating systemshostedLinux
Data schemeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or dateyes infoJSON typesnono
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 indexesyes infoAll properties auto-indexed by defaultnono
SQL infoSupport of SQLSQL-like query languagenono
APIs and other access methodsDocumentDB API
Graph API (Gremlin)
MongoDB API
RESTful HTTP API
Table API
C++ API
Java API
C++ API
Java API
Supported programming languages.Net
C#
Java
JavaScript
JavaScript (Node.js)
MongoDB client drivers written for various programming languages
Python
C
C++
Go
Java
Perl
Python
Ruby
C++
Java
Server-side scripts infoStored proceduresJavaScriptnono
TriggersJavaScriptnono
Partitioning methods infoMethods for storing different data on different nodesSharding infoImplicit feature of the cloud servicenonenone
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoImplicit feature of the cloud servicenonenone
MapReduce infoOffers an API for user-defined Map/Reduce methodswith Hadoop integration infoIntegration with Hadoop/HDInsight on Azure*nono
Consistency concepts infoMethods to ensure consistency in a distributed systemBounded Staleness
Consistent Prefix
Eventual Consistency
Immediate Consistency infoConsistency level configurable on request level
Session Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataMulti-item ACID transactions with snapshot isolation within a partitionyesno
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlAccess rights can be defined down to the item levelnono

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More resources
Microsoft Azure Cosmos DB infoformer name was Azure DocumentDBRocksDBTerarkDB
Recent citations in the news

Defender for Azure Cosmos DB Preview Announced by Microsoft
2 March 2022, Redmondmag.com

Researchers discover critical flaw in Azure Cosmos DB
27 August 2021, TechTarget

Xoriant X⋅CELERATE IoT Now Available in the Microsoft Azure Marketplace
25 July 2022, PR Newswire

Microsoft Defender for Cosmos DB is Now Available in Preview
3 March 2022, Petri.com

Microsoft Warns Customers about a Critical Vulnerability in Azure Cosmos DB
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30 April 2019, EJ Insight

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3 July 2017, TechNode

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