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DBMS > atoti vs. KairosDB vs. SiteWhere vs. VelocityDB

System Properties Comparison atoti vs. KairosDB vs. SiteWhere vs. VelocityDB

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Editorial information provided by DB-Engines
Nameatoti  Xexclude from comparisonKairosDB  Xexclude from comparisonSiteWhere  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionAn in-memory DBMS combining transactional and analytical processing to handle the aggregation of ever-changing data.Distributed Time Series DBMS based on Cassandra or H2M2M integration platform for persisting/querying time series dataA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelObject oriented DBMSTime Series DBMSTime Series DBMSGraph DBMS
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.61
Rank#243  Overall
#10  Object oriented DBMS
Score0.67
Rank#233  Overall
#20  Time Series DBMS
Score0.06
Rank#383  Overall
#43  Time Series DBMS
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Websiteatoti.iogithub.com/­kairosdb/­kairosdbgithub.com/­sitewhere/­sitewherevelocitydb.com
Technical documentationdocs.atoti.iokairosdb.github.iositewhere1.sitewhere.io/­index.htmlvelocitydb.com/­UserGuide
DeveloperActiveViamSiteWhereVelocityDB Inc
Initial release201320102011
Current release1.2.2, November 20187.x
License infoCommercial or Open Sourcecommercial infofree versions availableOpen Source infoApache 2.0Open Source infoCommon Public Attribution License Version 1.0commercial
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 languageJavaJavaJavaC#
Server operating systemsLinux
OS X
Windows
Linux
OS X
Windows
Any that supports .NET
Data schemeschema-freepredefined schemeyes
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.nonono
Secondary indexesnonoyes
SQL infoSupport of SQLMultidimensional Expressions (MDX)nonono
APIs and other access methodsGraphite protocol
HTTP REST
Telnet API
HTTP REST.Net
Supported programming languagesJava
JavaScript infoNode.js
PHP
Python
.Net
Server-side scripts infoStored proceduresPythonnono
TriggersnoCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesSharding, horizontal partitioningSharding infobased on CassandraSharding infobased on HBaseSharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on Cassandraselectable replication factor infobased on HBase
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
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACID
Concurrency infoSupport for concurrent manipulation of datayes, multi-version concurrency control (MVCC)yesyesyes
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.yesnonoyes
User concepts infoAccess controlsimple password-based access controlUsers with fine-grained authorization conceptBased on Windows Authentication

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More resources
atotiKairosDBSiteWhereVelocityDB
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