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DBMS > FatDB vs. openGemini vs. OpenTSDB

System Properties Comparison FatDB vs. openGemini vs. OpenTSDB

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Editorial information provided by DB-Engines
NameFatDB  Xexclude from comparisonopenGemini  Xexclude from comparisonOpenTSDB  Xexclude from comparison
FatDB/FatCloud has ceased operations as a company with February 2014. FatDB is discontinued and excluded from the ranking.
DescriptionA .NET NoSQL DBMS that can integrate with and extend SQL Server.An open source distributed Time Series DBMS with high concurrency, high performance, and high scalabilityScalable Time Series DBMS based on HBase
Primary database modelDocument store
Key-value store
Time Series DBMSTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.01
Rank#375  Overall
#39  Time Series DBMS
Score1.68
Rank#146  Overall
#12  Time Series DBMS
Websitewww.opengemini.org
github.com/­openGemini
opentsdb.net
Technical documentationdocs.opengemini.org/­guideopentsdb.net/­docs/­build/­html/­index.html
DeveloperFatCloudHuawei and openGemini communitycurrently maintained by Yahoo and other contributors
Initial release201220222011
Current release1.1, July 2023
License infoCommercial or Open SourcecommercialOpen Source infoApache Version 2.0Open Source infoLGPL
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC#GoJava
Server operating systemsWindowsLinux
Windows
Linux
Windows
Data schemeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or dateyesInteger, Float, Boolean, Stringnumeric data for metrics, strings for tags
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 indexesyesyesno
SQL infoSupport of SQLno infoVia inetgration in SQL ServerSQL-like query languageno
APIs and other access methods.NET Client API
LINQ
RESTful HTTP API
RPC
Windows WCF Bindings
HTTP RESTHTTP API
Telnet API
Supported programming languagesC#C
C++
Go
Java
JavaScript (Node.js)
Python
Rust
Erlang
Go
Java
Python
R
Ruby
Server-side scripts infoStored proceduresyes infovia applicationsnono
Triggersyes infovia applicationsnono
Partitioning methods infoMethods for storing different data on different nodesShardingShardingSharding infobased on HBase
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factoryesselectable replication factor infobased on HBase
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency
Immediate Consistency infobased on HBase
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonono
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.yesno
User concepts infoAccess controlno infoCan implement custom security layer via applicationsAdministrators and common users accountsno

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More resources
FatDBopenGeminiOpenTSDB
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