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DBMS > Druid vs. LokiJS

System Properties Comparison Druid vs. LokiJS

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Editorial information provided by DB-Engines
NameDruid  Xexclude from comparisonLokiJS  Xexclude from comparison
DescriptionOpen-source analytics data store designed for OLAP queries on timeseries dataIn-memory JavaScript DBMS
Primary database modelRelational DBMS
Time Series DBMS
Document store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.73
Rank#111  Overall
#55  Relational DBMS
#7  Time Series DBMS
Score0.32
Rank#229  Overall
#32  Document stores
Websitedruid.iolokijs.org
Technical documentationdruid.io/­docs/­latest/­design/­index.htmllokijs.org/­#/­docs
DeveloperMetamarkets Group and contributors
Initial release20122014
License infoCommercial or Open SourceOpen Source infoApache license v2Open Source
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaJavaScript
Server operating systemsLinux
OS X
Unix
server-less, requires a JavaScript environment (browser, Node.js)
Data schemeyes infoschema-less columns are supportedschema-free
Typing infopredefined data types such as float or dateyesno
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 indexesyesyes infovia views
SQL infoSupport of SQLSQL support via Apache Calcite adapterno
APIs and other access methodsJSON over HTTPJavaScript API
Supported programming languagesClojure
JavaScript
PHP
Python
R
Ruby
Scala
JavaScript
Server-side scripts infoStored proceduresnoView functions in JavaScript
Triggersnoyes
Partitioning methods infoMethods for storing different data on different nodesShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesyes, via HDFS, S3 or other storage enginesnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistencynone
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanono infoatomic operations within a single collection possible
Concurrency infoSupport for concurrent manipulation of datayes
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.
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlno infoavailable via extensionsno

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More resources
DruidLokiJS
DB-Engines blog posts

New kids on the block: database management systems implemented in JavaScript
1 December 2014, Matthias Gelbmann

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Recent citations in the news

Imply launches with $2M to commercialize the Druid open-source data store
19 October 2015, VentureBeat

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10 May 2019, Datanami

Hadoop Creator Yahoo Finds It's Not Enough, Turns to Druid
30 July 2015, ADT Magazine

Yahoo Casts Real-Time OLAP Queries with Druid
4 August 2015, Datanami

Azure HDInsight Brings Next Generation Hadoop 3.0 and Enterprise Security to the Cloud
24 September 2018, HPCwire

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Fast, Lightweight Data Storage for Cordova Apps with LokiJS
26 January 2016, SitePoint

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18 November 2014, iProgrammer

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12 July 2016, InfoQ.com

LokiJS Reaches 1.4
8 July 2016, iProgrammer

LinkedIn open-sources URL-Detector Java library, LokiJS 1.4, and Bulgaria's new open-source law—SD Times news digest: July 5, 2016
5 July 2016, SDTimes.com

provided by Google News

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