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DBMS > Cachelot.io vs. Dolt vs. eXtremeDB vs. NebulaGraph

System Properties Comparison Cachelot.io vs. Dolt vs. eXtremeDB vs. NebulaGraph

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Editorial information provided by DB-Engines
NameCachelot.io  Xexclude from comparisonDolt  Xexclude from comparisoneXtremeDB  Xexclude from comparisonNebulaGraph  Xexclude from comparison
DescriptionIn-memory caching systemA MySQL compatible DBMS with Git-like versioning of data and schemaNatively in-memory DBMS with options for persistency, high-availability and clusteringA distributed, linear scalable, high perfomant Graph DBMS
Primary database modelKey-value storeRelational DBMSRelational DBMS
Time Series DBMS
Graph DBMS
Secondary database modelsDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.00
Rank#383  Overall
#60  Key-value stores
Score0.96
Rank#193  Overall
#90  Relational DBMS
Score0.74
Rank#223  Overall
#103  Relational DBMS
#18  Time Series DBMS
Score2.14
Rank#120  Overall
#10  Graph DBMS
Websitecachelot.iogithub.com/­dolthub/­dolt
www.dolthub.com
www.mcobject.comgithub.com/­vesoft-inc/­nebula
www.nebula-graph.io
Technical documentationdocs.dolthub.comwww.mcobject.com/­docs/­extremedb.htmdocs.nebula-graph.io
DeveloperDoltHub IncMcObjectVesoft Inc.
Initial release2015201820012019
Current release8.2, 2021
License infoCommercial or Open SourceOpen Source infoSimplified BSD LicenseOpen Source infoApache Version 2.0commercialOpen Source infoApache Version 2.0 + Common Clause 1.0
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++GoC and C++C++
Server operating systemsFreeBSD
Linux
OS X
Linux
macOS
Windows
AIX
HP-UX
Linux
macOS
Solaris
Windows
Linux
Data schemeschema-freeyesyesStrong typed schema
Typing infopredefined data types such as float or datenoyesyesyes
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.nonono infosupport of XML interfaces availableno
Secondary indexesnoyesyesyes infoNebula Graph internally uses the Key-Value store RocksDB for persistency. The vertices, edges, and their properties are stored as Key while their values are stored as Value. The primary indexes are per Key and secondary indexes are per Value.
SQL infoSupport of SQLnoyesyes infowith the option: eXtremeSQLSQL-like query language
APIs and other access methodsMemcached protocolCLI Client
HTTP REST
.NET Client API
JDBC
JNI
ODBC
Proprietary protocol
RESTful HTTP API
Browser interface
console (shell)
Cypher Query Language
GO Object Graph Mapper
Java Object Graph Mapper
NGBatis infoORM framework for NebulaGraph and Spring-Boot
Proprietary native API
Python Object Graph Mapper
Query language nGQL
Supported programming languages.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
OCaml
Perl
PHP
Python
Ruby
Ada
C
C#
C++
D
Delphi
Eiffel
Erlang
Haskell
Java
JavaScript (Node.js)
Objective-C
OCaml
Perl
PHP
Python
Ruby
Scheme
Tcl
.Net
C
C#
C++
Java
Lua
Python
Scala
.Net
C++
Go
Java
PHP
Python
Server-side scripts infoStored proceduresnoyes infocurrently in alpha releaseyesuser defined functions
Triggersnoyesyes infoby defining events
Partitioning methods infoMethods for storing different data on different nodesnonenonehorizontal partitioning / shardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneA database can be cloned to multiple locations and be used there in isolation. Data/schema changes can be pushed/pulled explicitly between locations.Active Replication Fabric™ for IoT
Multi-source replication infoby means of eXtremeDB Cluster option
Source-replica replication infoby means of eXtremeDB High Availability option
Causal Clustering using Raft protocol
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesyesyes infoRelationships in graphs
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes infoOptimistic (MVCC) and pessimistic (locking) strategies availableyes
Durability infoSupport for making data persistentnoyesyesyes infousing RocksDB
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyes
User concepts infoAccess controlnoOnly one user is configurable, and must be specified in the config file at startupRole-based access control
More information provided by the system vendor
Cachelot.ioDolteXtremeDBNebulaGraph
Specific characteristicseXtremeDB is an in-memory and/or persistent database system that offers an ultra-small...
» more
NebulaGraph is a truly distributed, linearly scalable, lightning-fast graph database,...
» more
Competitive advantageseXtremeDB databases can be modeled relationally or as objects and can utilize SQL...
» more
NebulaGraph boasts the world's only graph database solution that is able to host...
» more
Typical application scenariosIoT application across all markets: Industrial Control, Netcom, Telecom, Defense,...
» more
Social networking Fraud detection Knowledge graph Data warehouse management Anti...
» more
Key customersSchneider Electronics, F5 Networks, TNS, Boeing, Northrop Grumman, GoPro, ViaSat,...
» more
Companies from a variety of industries have implemented NebulaGraph Database in production,...
» more
Market metricsWith hundreds of customers and over 30 million devices/applications using the product...
» more
At our very early stage, NebulaGraph has already received over 10,000 stars on GitHub...
» more
Licensing and pricing modelsFor server use cases, there is a simple per-server license irrespective of the number...
» more
NebulaGraph is open source and free to use under Apache 2.0 license.
» more

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More resources
Cachelot.ioDolteXtremeDBNebulaGraph
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