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DBMS > KairosDB vs. Kdb vs. NebulaGraph

System Properties Comparison KairosDB vs. Kdb vs. NebulaGraph

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Editorial information provided by DB-Engines
NameKairosDB  Xexclude from comparisonKdb  Xexclude from comparisonNebulaGraph  Xexclude from comparison
DescriptionDistributed Time Series DBMS based on Cassandra or H2High performance Time Series DBMSA distributed, linear scalable, high perfomant Graph DBMS
Primary database modelTime Series DBMSTime Series DBMS
Vector DBMS
Graph DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.62
Rank#239  Overall
#20  Time Series DBMS
Score7.55
Rank#53  Overall
#3  Time Series DBMS
#1  Vector DBMS
Score2.14
Rank#120  Overall
#10  Graph DBMS
Websitegithub.com/­kairosdb/­kairosdbkx.comgithub.com/­vesoft-inc/­nebula
www.nebula-graph.io
Technical documentationkairosdb.github.iocode.kx.comdocs.nebula-graph.io
DeveloperKx Systems, a division of First Derivatives plcVesoft Inc.
Initial release20132000 infokdb was released 2000, kdb+ in 20032019
Current release1.2.2, November 20183.6, May 2018
License infoCommercial or Open SourceOpen Source infoApache 2.0commercial infofree 32-bit versionOpen Source infoApache Version 2.0 + Common Clause 1.0
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaqC++
Server operating systemsLinux
OS X
Windows
Linux
OS X
Solaris
Windows
Linux
Data schemeschema-freeyesStrong typed schema
Typing infopredefined data types such as float or dateyesyesyes
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.noyesno
Secondary indexesnoyes infotable attribute 'grouped'yes 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 SQLnoSQL-like query language (q)SQL-like query language
APIs and other access methodsGraphite protocol
HTTP REST
Telnet API
HTTP API
JDBC
Jupyter
Kafka
ODBC
WebSocket
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 languagesJava
JavaScript infoNode.js
PHP
Python
C
C#
C++
Go
J
Java
JavaScript
Lua
MatLab
Perl
PHP
Python
R
Scala
.Net
C++
Go
Java
PHP
Python
Server-side scripts infoStored proceduresnouser defined functionsuser defined functions
Triggersnoyes infowith views
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on Cassandrahorizontal partitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on CassandraSource-replica replicationCausal Clustering using Raft protocol
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono infosimilar paradigm used for internal processingno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesyes infoRelationships in graphs
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes 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 controlsimple password-based access controlrights management via user accountsRole-based access control
More information provided by the system vendor
KairosDBKdbNebulaGraph
Specific characteristicsIntegrated columnar database & programming system for streaming, real time and historical...
» more
NebulaGraph is a truly distributed, linearly scalable, lightning-fast graph database,...
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Competitive advantagesprovides seamless scalability; runs on industry standard server platforms; is top-ranked...
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NebulaGraph boasts the world's only graph database solution that is able to host...
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Typical application scenariostick database streaming sensor data massive intelligence applications oil and gas...
» more
Social networking Fraud detection Knowledge graph Data warehouse management Anti...
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Key customersGoldman Sachs Morgan Stanley Merrill Lynch J.P. Morgan Deutsche Bank IEX Securities...
» more
Companies from a variety of industries have implemented NebulaGraph Database in production,...
» more
Market metricskdb+ performance and reliability proven by our customers in critical infrastructure...
» more
At our very early stage, NebulaGraph has already received over 10,000 stars on GitHub...
» more
Licensing and pricing modelsupon request
» more
NebulaGraph is open source and free to use under Apache 2.0 license.
» more

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KairosDBKdbNebulaGraph
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