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DBMS > KairosDB vs. RisingWave vs. VelocityDB

System Properties Comparison KairosDB vs. RisingWave vs. VelocityDB

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Editorial information provided by DB-Engines
NameKairosDB  Xexclude from comparisonRisingWave  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionDistributed Time Series DBMS based on Cassandra or H2A distributed RDBMS for stream processing, wire-compatible with PostgreSQLA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelTime Series DBMSRelational DBMSGraph DBMS
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.62
Rank#239  Overall
#20  Time Series DBMS
Score0.58
Rank#242  Overall
#111  Relational DBMS
Score0.05
Rank#358  Overall
#36  Graph DBMS
#16  Object oriented DBMS
Websitegithub.com/­kairosdb/­kairosdbwww.risingwave.com/­databasevelocitydb.com
Technical documentationkairosdb.github.iodocs.risingwave.com/­docs/­current/­introvelocitydb.com/­UserGuide
DeveloperRisingWave LabsVelocityDB Inc
Initial release201320222011
Current release1.2.2, November 20181.2, September 20237.x
License infoCommercial or Open SourceOpen Source infoApache 2.0Open Source infoApache Version 2.0commercial
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaRustC#
Server operating systemsLinux
OS X
Windows
Docker
Linux
macOS
Any that supports .NET
Data schemeschema-freeyesyes
Typing infopredefined data types such as float or dateyesStandard SQL-types and JSONyes
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
Secondary indexesnoyesyes
SQL infoSupport of SQLnoyesno
APIs and other access methodsGraphite protocol
HTTP REST
Telnet API
JDBC
PostgreSQL wire protocol
.Net
Supported programming languagesJava
JavaScript infoNode.js
PHP
Python
Go
Java
JavaScript (Node.js)
Python
.Net
Server-side scripts infoStored proceduresnoUDFs in Python or Javano
TriggersnonoCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on CassandraSharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on Cassandra
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyesyes
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 controlUsers and RolesBased on Windows Authentication

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More resources
KairosDBRisingWaveVelocityDB
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