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DBMS > EventStoreDB vs. KairosDB vs. openGemini vs. TempoIQ

System Properties Comparison EventStoreDB vs. KairosDB vs. openGemini vs. TempoIQ

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Editorial information provided by DB-Engines
NameEventStoreDB  Xexclude from comparisonKairosDB  Xexclude from comparisonopenGemini  Xexclude from comparisonTempoIQ infoformerly TempoDB  Xexclude from comparison
TempoIQ seems to be decommissioned. It will be removed from the DB-Engines ranking.
DescriptionIndustrial-strength, open-source database solution built from the ground up for event sourcing.Distributed Time Series DBMS based on Cassandra or H2An open source distributed Time Series DBMS with high concurrency, high performance, and high scalabilityScalable analytics DBMS for sensor data, provided as a service (SaaS)
Primary database modelEvent StoreTime Series DBMSTime Series DBMSTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.10
Rank#179  Overall
#1  Event Stores
Score0.62
Rank#239  Overall
#20  Time Series DBMS
Score0.01
Rank#375  Overall
#39  Time Series DBMS
Websitewww.eventstore.comgithub.com/­kairosdb/­kairosdbwww.opengemini.org
github.com/­openGemini
tempoiq.com (offline)
Technical documentationdevelopers.eventstore.comkairosdb.github.iodocs.opengemini.org/­guide
DeveloperEvent Store LimitedHuawei and openGemini communityTempoIQ
Initial release2012201320222012
Current release21.2, February 20211.2.2, November 20181.1, July 2023
License infoCommercial or Open SourceOpen SourceOpen Source infoApache 2.0Open Source infoApache Version 2.0commercial
Cloud-based only infoOnly available as a cloud servicenononoyes
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaGo
Server operating systemsLinux
Windows
Linux
OS X
Windows
Linux
Windows
Data schemeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or dateyesInteger, Float, Boolean, Stringyes
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 indexesnoyes
SQL infoSupport of SQLnoSQL-like query languageno
APIs and other access methodsGraphite protocol
HTTP REST
Telnet API
HTTP RESTHTTP API
Supported programming languagesJava
JavaScript infoNode.js
PHP
Python
C
C++
Go
Java
JavaScript (Node.js)
Python
Rust
C#
Java
JavaScript infoNode.js
Python
Ruby
Server-side scripts infoStored proceduresnonono
Triggersnonoyes infoRealtime Alerts
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 Cassandrayes
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
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 persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesno
User concepts infoAccess controlsimple password-based access controlAdministrators and common users accountssimple authentication-based access control

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More resources
EventStoreDBKairosDBopenGeminiTempoIQ infoformerly TempoDB
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