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DBMS > Graph Engine vs. Memcached vs. OpenMLDB

System Properties Comparison Graph Engine vs. Memcached vs. OpenMLDB

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Editorial information provided by DB-Engines
NameGraph Engine infoformer name: Trinity  Xexclude from comparisonMemcached  Xexclude from comparisonOpenMLDB  Xexclude from comparison
DescriptionA distributed in-memory data processing engine, underpinned by a strongly-typed RAM store and a general distributed computation engineIn-memory key-value store, originally intended for cachingAn open-source machine learning database that provides a feature platform for training and inference
Primary database modelGraph DBMS
Key-value store
Key-value storeTime Series DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.58
Rank#239  Overall
#21  Graph DBMS
#34  Key-value stores
Score15.47
Rank#34  Overall
#4  Key-value stores
Score0.05
Rank#358  Overall
#38  Time Series DBMS
Websitewww.graphengine.iowww.memcached.orgopenmldb.ai
Technical documentationwww.graphengine.io/­docs/­manualgithub.com/­memcached/­memcached/­wikiopenmldb.ai/­docs/­zh/­main
DeveloperMicrosoftDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournal4 Paradigm Inc.
Initial release201020032020
Current release1.6.29, June 20242024-2 February 2024
License infoCommercial or Open SourceOpen Source infoMIT LicenseOpen Source infoBSD licenseOpen Source
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation language.NET and CCC++, Java, Scala
Server operating systems.NETFreeBSD
Linux
OS X
Unix
Windows
Linux
Data schemeyesschema-freeFixed schema
Typing infopredefined data types such as float or dateyesnoyes
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 SQLnonoyes
APIs and other access methodsRESTful HTTP APIProprietary protocolJDBC
SQLAlchemy
Supported programming languagesC#
C++
F#
Visual Basic
.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
C++
Go
Java
Python
Scala
Server-side scripts infoStored proceduresyesnono
Triggersnonono
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningnonehorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoRepcached, a Memcached patch, provides this functionallitySource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
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 persistentoptional: either by committing a write-ahead log (WAL) to the local persistent storage or by dumping the memory to a persistent storagenoyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlyes infousing SASL (Simple Authentication and Security Layer) protocolfine grained access rights according to SQL-standard

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More resources
Graph Engine infoformer name: TrinityMemcachedOpenMLDB
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