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DBMS > Heroic vs. LokiJS vs. OpenQM vs. OpenTSDB

System Properties Comparison Heroic vs. LokiJS vs. OpenQM vs. OpenTSDB

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Editorial information provided by DB-Engines
NameHeroic  Xexclude from comparisonLokiJS  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparisonOpenTSDB  Xexclude from comparison
DescriptionTime Series DBMS built at Spotify based on Cassandra or Google Cloud Bigtable, and ElasticSearchIn-memory JavaScript DBMSQpenQM is a high-performance, self-tuning, multi-value DBMSScalable Time Series DBMS based on HBase
Primary database modelTime Series DBMSDocument storeMultivalue DBMSTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.57
Rank#250  Overall
#21  Time Series DBMS
Score0.48
Rank#262  Overall
#42  Document stores
Score0.33
Rank#286  Overall
#10  Multivalue DBMS
Score1.73
Rank#147  Overall
#12  Time Series DBMS
Websitegithub.com/­spotify/­heroicgithub.com/­techfort/­LokiJSwww.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qmopentsdb.net
Technical documentationspotify.github.io/­heroictechfort.github.io/­LokiJSopentsdb.net/­docs/­build/­html/­index.html
DeveloperSpotifyRocket Software, originally Martin Phillipscurrently maintained by Yahoo and other contributors
Initial release2014201419932011
Current release3.4-12
License infoCommercial or Open SourceOpen Source infoApache 2.0Open SourceOpen Source infoGPLv2, extended commercial license availableOpen Source infoLGPL
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJavaScriptJava
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)AIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
Linux
Windows
Data schemeschema-freeschema-freeyes infowith some exceptionsschema-free
Typing infopredefined data types such as float or dateyesnonumeric data for metrics, strings for tags
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.nonoyesno
Secondary indexesyes infovia Elasticsearchyes infovia viewsyesno
SQL infoSupport of SQLnononono
APIs and other access methodsHQL (Heroic Query Language, a JSON-based language)
HTTP API
JavaScript APIHTTP API
Telnet API
Supported programming languagesJavaScript.Net
Basic
C
Java
Objective C
PHP
Python
Erlang
Go
Java
Python
R
Ruby
Server-side scripts infoStored proceduresnoView functions in JavaScriptyesno
Triggersnoyesyesno
Partitioning methods infoMethods for storing different data on different nodesShardingnoneyesSharding infobased on HBase
Replication methods infoMethods for redundantly storing data on multiple nodesyesnoneyesselectable replication factor infobased on HBase
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency
noneImmediate ConsistencyImmediate Consistency infobased on HBase
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanono infoatomic operations within a single collection possibleACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.yesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesno
User concepts infoAccess controlnoAccess rights can be defined down to the item levelno

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More resources
HeroicLokiJSOpenQM infoalso called QMOpenTSDB
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Recent citations in the news

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7 September 2016, InfoWorld

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