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DBMS > OpenTSDB vs. RDFox vs. Realm

System Properties Comparison OpenTSDB vs. RDFox vs. Realm

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Editorial information provided by DB-Engines
NameOpenTSDB  Xexclude from comparisonRDFox  Xexclude from comparisonRealm  Xexclude from comparison
DescriptionScalable Time Series DBMS based on HBaseHigh performance knowledge graph and semantic reasoning engineA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core Data
Primary database modelTime Series DBMSGraph DBMS
RDF store
Document store
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.68
Rank#146  Overall
#12  Time Series DBMS
Score0.23
Rank#308  Overall
#25  Graph DBMS
#14  RDF stores
Score7.60
Rank#52  Overall
#9  Document stores
Websiteopentsdb.netwww.oxfordsemantic.techrealm.io
Technical documentationopentsdb.net/­docs/­build/­html/­index.htmldocs.oxfordsemantic.techrealm.io/­docs
Developercurrently maintained by Yahoo and other contributorsOxford Semantic TechnologiesRealm, acquired by MongoDB in May 2019
Initial release201120172014
Current release6.0, Septermber 2022
License infoCommercial or Open SourceOpen Source infoLGPLcommercialOpen Source
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaC++
Server operating systemsLinux
Windows
Linux
macOS
Windows
Android
Backend: server-less
iOS
Windows
Data schemeschema-freeyes infoRDF schemasyes
Typing infopredefined data types such as float or datenumeric data for metrics, strings for tagsyesyes
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 indexesnoyes
SQL infoSupport of SQLnonono
APIs and other access methodsHTTP API
Telnet API
RESTful HTTP API
SPARQL 1.1
Supported programming languagesErlang
Go
Java
Python
R
Ruby
C
Java
.Net
Java infowith Android only
Objective-C
React Native
Swift
Server-side scripts infoStored proceduresnono inforuns within the applications so server-side scripts are unnecessary
Triggersnoyes infoChange Listeners
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on HBasenone
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on HBasereplication via a shared file systemnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency infobased on HBaseImmediate Consistency in stand-alone mode, Eventual Consistency in replicated setupsImmediate Consistency
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACID
Concurrency infoSupport for concurrent manipulation of datayes
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.noyesyes infoIn-Memory realm
User concepts infoAccess controlnoRoles, resources, and access typesyes

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More resources
OpenTSDBRDFoxRealm
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