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DBMS > DataFS vs. GeoSpock vs. Memcached vs. OpenQM vs. ReductStore

System Properties Comparison DataFS vs. GeoSpock vs. Memcached vs. OpenQM vs. ReductStore

Editorial information provided by DB-Engines
NameDataFS  Xexclude from comparisonGeoSpock  Xexclude from comparisonMemcached  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparisonReductStore  Xexclude from comparison
GeoSpock seems to be discontinued. Therefore it will be excluded from the DB-Engines ranking.
DescriptionAll data is stored inside objects which are linked by so-called link attributes. Objects consist of classes which can be extended and de-extended at runtime. Graphs can be defined with a struct.Spatial and temporal data processing engine for extreme data scaleIn-memory key-value store, originally intended for cachingQpenQM is a high-performance, self-tuning, multi-value DBMSDesigned to manage unstructured time-series data efficiently, providing unique features such as storing time-stamped blobs with labels, customizable data retention policies, and a straightforward FIFO quota system.
Primary database modelObject oriented DBMSRelational DBMSKey-value storeMultivalue DBMSTime Series DBMS
Secondary database modelsGraph DBMSTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.09
Rank#360  Overall
#17  Object oriented DBMS
Score18.08
Rank#32  Overall
#4  Key-value stores
Score0.34
Rank#284  Overall
#10  Multivalue DBMS
Score0.05
Rank#384  Overall
#44  Time Series DBMS
Websitenewdatabase.comgeospock.comwww.memcached.orgwww.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qmgithub.com/­reductstore
www.reduct.store
Technical documentationdev.mobiland.com/­Overview.xspgithub.com/­memcached/­memcached/­wikiwww.reduct.store/­docs
DeveloperMobiland AGGeoSpockDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalRocket Software, originally Martin PhillipsReductStore LLC
Initial release2018200319932023
Current release1.1.263, October 20222.0, September 20191.6.27, May 20243.4-121.9, March 2024
License infoCommercial or Open SourcecommercialcommercialOpen Source infoBSD licenseOpen Source infoGPLv2, extended commercial license availableOpen Source infoBusiness Source License 1.1
Cloud-based only infoOnly available as a cloud servicenoyesnonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJava, JavascriptCC++, Rust
Server operating systemsWindowshostedFreeBSD
Linux
OS X
Unix
Windows
AIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
Docker
Linux
macOS
Windows
Data schemeClasses, Structs, and Lists are written in proprietary DataTypeDefinitionLanguage (.dtdl) and Objects consisting of those are written in proprietary DataAccessDefinitionLanguage (.dadl)yesschema-freeyes infowith some exceptions
Typing infopredefined data types such as float or dateyesyesno
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.nonoyes
Secondary indexesnotemporal, categoricalnoyes
SQL infoSupport of SQLnoANSI SQL for query only (using Presto)nono
APIs and other access methods.NET Client API
Proprietary client DLL
WinRT client
JDBCProprietary protocolHTTP API
Supported programming languages.Net
C
C#
C++
VB.Net
.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
.Net
Basic
C
Java
Objective C
PHP
Python
C++
JavaScript (Node.js)
Python
Rust
Server-side scripts infoStored proceduresnonoyes
Triggersno, except callback-events from server when changes happenednonoyes
Partitioning methods infoMethods for storing different data on different nodesProprietary Sharding systemAutomatic shardingnoneyes
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoRepcached, a Memcached patch, provides this functionallityyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnonoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesnoyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nono
User concepts infoAccess controlWindows-ProfileAccess rights for users can be defined per tableyes infousing SASL (Simple Authentication and Security Layer) protocolAccess rights can be defined down to the item level

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More resources
DataFSGeoSpockMemcachedOpenQM infoalso called QMReductStore
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