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DBMS > DataFS vs. Hazelcast vs. SpaceTime vs. Trafodion

System Properties Comparison DataFS vs. Hazelcast vs. SpaceTime vs. Trafodion

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Editorial information provided by DB-Engines
NameDataFS  Xexclude from comparisonHazelcast  Xexclude from comparisonSpaceTime  Xexclude from comparisonTrafodion  Xexclude from comparison
Apache Trafodion has been retired in 2021. Therefore it is 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.A widely adopted in-memory data gridSpaceTime is a spatio-temporal DBMS with a focus on performance.Transactional SQL-on-Hadoop DBMS
Primary database modelObject oriented DBMSKey-value storeSpatial DBMSRelational DBMS
Secondary database modelsGraph DBMSDocument store infoJSON support with IMDG 3.12Relational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.09
Rank#360  Overall
#17  Object oriented DBMS
Score5.46
Rank#61  Overall
#7  Key-value stores
Score0.03
Rank#392  Overall
#8  Spatial DBMS
Websitenewdatabase.comhazelcast.comwww.mireo.com/­spacetimetrafodion.apache.org
Technical documentationdev.mobiland.com/­Overview.xsphazelcast.org/­imdg/­docstrafodion.apache.org/­documentation.html
DeveloperMobiland AGHazelcastMireoApache Software Foundation, originally developed by HP
Initial release2018200820202014
Current release1.1.263, October 20225.3.6, November 20232.3.0, February 2019
License infoCommercial or Open SourcecommercialOpen Source infoApache Version 2; commercial licenses availablecommercialOpen Source infoApache 2.0
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaC++C++, Java
Server operating systemsWindowsAll OS with a Java VMLinuxLinux
Data schemeClasses, Structs, and Lists are written in proprietary DataTypeDefinitionLanguage (.dtdl) and Objects consisting of those are written in proprietary DataAccessDefinitionLanguage (.dadl)schema-freeyesyes
Typing infopredefined data types such as float or dateyesyesyesyes
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.noyes infothe object must implement a serialization strategynono
Secondary indexesnoyesnoyes
SQL infoSupport of SQLnoSQL-like query languageA subset of ANSI SQL is implementedyes
APIs and other access methods.NET Client API
Proprietary client DLL
WinRT client
JCache
JPA
Memcached protocol
RESTful HTTP API
RESTful HTTP APIADO.NET
JDBC
ODBC
Supported programming languages.Net
C
C#
C++
VB.Net
.Net
C#
C++
Clojure
Go
Java
JavaScript (Node.js)
Python
Scala
C#
C++
Python
All languages supporting JDBC/ODBC/ADO.Net
Server-side scripts infoStored proceduresyes infoEvent Listeners, Executor ServicesnoJava Stored Procedures
Triggersno, except callback-events from server when changes happenedyes infoEventsnono
Partitioning methods infoMethods for storing different data on different nodesProprietary Sharding systemShardingFixed-grid hypercubesSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoReplicated MapReal-time block device replication (DRBD)yes, via HBase
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnoyes infovia user defined functions and HBase
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency or Eventual Consistency selectable by user infoRaft Consensus AlgorithmImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDone or two-phase-commit; repeatable reads; read commitednoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesnono
User concepts infoAccess controlWindows-ProfileRole-based access controlyesfine grained access rights according to SQL-standard

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More resources
DataFSHazelcastSpaceTimeTrafodion
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