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DBMS > EJDB vs. KairosDB vs. Newts vs. STSdb

System Properties Comparison EJDB vs. KairosDB vs. Newts vs. STSdb

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Editorial information provided by DB-Engines
NameEJDB  Xexclude from comparisonKairosDB  Xexclude from comparisonNewts  Xexclude from comparisonSTSdb  Xexclude from comparison
DescriptionEmbeddable document-store database library with JSON representation of queries (in MongoDB style)Distributed Time Series DBMS based on Cassandra or H2Time Series DBMS based on CassandraKey-Value Store with special method for indexing infooptimized for high performance using a special indexing method
Primary database modelDocument storeTime Series DBMSTime Series DBMSKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.30
Rank#294  Overall
#44  Document stores
Score0.71
Rank#230  Overall
#20  Time Series DBMS
Score0.00
Rank#396  Overall
#42  Time Series DBMS
Score0.06
Rank#365  Overall
#55  Key-value stores
Websitegithub.com/­Softmotions/­ejdbgithub.com/­kairosdb/­kairosdbopennms.github.io/­newtsgithub.com/­STSSoft/­STSdb4
Technical documentationgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mdkairosdb.github.iogithub.com/­OpenNMS/­newts/­wiki
DeveloperSoftmotionsOpenNMS GroupSTS Soft SC
Initial release2012201320142011
Current release1.2.2, November 20184.0.8, September 2015
License infoCommercial or Open SourceOpen Source infoGPLv2Open Source infoApache 2.0Open Source infoApache 2.0Open Source infoGPLv2, commercial license available
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCJavaJavaC#
Server operating systemsserver-lessLinux
OS X
Windows
Linux
OS X
Windows
Windows
Data schemeschema-freeschema-freeschema-freeyes
Typing infopredefined data types such as float or dateyes infostring, integer, double, bool, date, object_idyesyesyes infoprimitive types and user defined types (classes)
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 indexesnononono
SQL infoSupport of SQLnononono
APIs and other access methodsin-process shared libraryGraphite protocol
HTTP REST
Telnet API
HTTP REST
Java API
.NET Client API
Supported programming languagesActionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
Java
JavaScript infoNode.js
PHP
Python
JavaC#
Java
Server-side scripts infoStored proceduresnononono
Triggersnononono
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infobased on CassandraSharding infobased on Cassandranone
Replication methods infoMethods for redundantly storing data on multiple nodesnoneselectable replication factor infobased on Cassandraselectable replication factor infobased on Cassandranone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Eventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Foreign keys infoReferential integrityno infotypically not needed, however similar functionality with collection joins possiblenonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanononono
Concurrency infoSupport for concurrent manipulation of datayes infoRead/Write Lockingyesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nono
User concepts infoAccess controlnosimple password-based access controlnono

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More resources
EJDBKairosDBNewtsSTSdb
Recent citations in the news

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