DB-EnginesExtremeDB: hybrid in-memory and persistent storage based on a true IMDSEnglish
Deutsch
Knowledge Base of Relational and NoSQL Database Management Systemsprovided by solid IT

DBMS > Apache Druid vs. Elasticsearch vs. Firebase Realtime Database vs. RocksDB

System Properties Comparison Apache Druid vs. Elasticsearch vs. Firebase Realtime Database vs. RocksDB

Please select another system to include it in the comparison.

Editorial information provided by DB-Engines
NameApache Druid  Xexclude from comparisonElasticsearch  Xexclude from comparisonFirebase Realtime Database  Xexclude from comparisonRocksDB  Xexclude from comparison
DescriptionOpen-source analytics data store designed for sub-second OLAP queries on high dimensionality and high cardinality dataA distributed, RESTful modern search and analytics engine based on Apache Lucene infoElasticsearch lets you perform and combine many types of searches such as structured, unstructured, geo, and metricCloud-hosted realtime document store. iOS, Android, and JavaScript clients share one Realtime Database instance and automatically receive updates with the newest data.Embeddable persistent key-value store optimized for fast storage (flash and RAM)
Primary database modelRelational DBMS
Time Series DBMS
Search engineDocument storeKey-value store
Secondary database modelsDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.00
Rank#95  Overall
#49  Relational DBMS
#6  Time Series DBMS
Score157.08
Rank#8  Overall
#1  Search engines
Score17.95
Rank#38  Overall
#5  Document stores
Score3.72
Rank#87  Overall
#14  Key-value stores
Websitedruid.apache.orgwww.elastic.co/­elasticsearchfirebase.google.com/­products/­realtime-databaserocksdb.org
Technical documentationdruid.apache.org/­docs/­latest/­designwww.elastic.co/­guide/­en/­elasticsearch/­reference/­current/­index.htmlfirebase.google.com/­docs/­databasegithub.com/­facebook/­rocksdb/­wiki
DeveloperApache Software Foundation and contributorsElasticGoogle infoacquired by Google 2014Facebook, Inc.
Initial release2012201020122013
Current release0.21.0, April 20217.8.0, June 20206.22.1, July 2021
License infoCommercial or Open SourceOpen Source infoApache license v2Open Source infoApache Version 2; Elastic LicensecommercialOpen Source infoBSD
Cloud-based only infoOnly available as a cloud servicenonoyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaJavaC++
Server operating systemsLinux
OS X
Unix
All OS with a Java VMhosted
Data schemeyes infoschema-less columns are supportedschema-free infoFlexible type definitions. Once a type is defined, it is persistentschema-freeschema-free
Typing infopredefined data types such as float or dateyesyesyesno
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.nononono
Secondary indexesyesyes infoAll search fields are automatically indexedyesno
SQL infoSupport of SQLSQL for queryingSQL-like query languagenono
APIs and other access methodsJDBC
RESTful HTTP/JSON API
Java API
RESTful HTTP/JSON API
Android
iOS
JavaScript API
RESTful HTTP API
C++ API
Java API
Supported programming languagesClojure
JavaScript
PHP
Python
R
Ruby
Scala
.Net
Groovy
Community Contributed Clients
Java
JavaScript
Perl
PHP
Python
Ruby
Java
JavaScript
Objective-C
C++
Java
Server-side scripts infoStored proceduresnoyeslimited functionality with using 'rules'no
Triggersnoyes infoby using the 'percolation' featureCallbacks are triggered when data changesno
Partitioning methods infoMethods for storing different data on different nodesSharding infomanual/auto, time-basedShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesyes, via HDFS, S3 or other storage enginesyesnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoES-Hadoop Connectornono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency infoSynchronous doc based replication. Get by ID may show delays up to 1 sec. Configurable write consistency: one, quorum, allEventual Consistency infoif the client is offline
Immediate Consistency infoif the client is online
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoyesyes
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
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.noMemcached and Redis integrationyes
User concepts infoAccess controlRBAC using LDAP or Druid internals for users and groups for read/write by datasource and systemyes, based on authentication and database rulesno

More information provided by the system vendor

We invite representatives of system vendors to contact us for updating and extending the system information,
and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

Related products and services

We invite representatives of vendors of related products to contact us for presenting information about their offerings here.

More resources
Apache DruidElasticsearchFirebase Realtime DatabaseRocksDB
DB-Engines blog posts

PostgreSQL is the DBMS of the Year 2017
2 January 2018, Paul Andlinger, Matthias Gelbmann

Elasticsearch moved into the top 10 most popular database management systems
3 July 2017, Matthias Gelbmann

MySQL, PostgreSQL and Redis are the winners of the March ranking
2 March 2016, Paul Andlinger

show all

Cloud-based DBMS's popularity grows at high rates
12 December 2019, Paul Andlinger

show all

Recent citations in the news

SD Times news digest: TypeScript 4.4 beta, Rust support improvements in Linux kernel, Sauce Labs acquires Backtrace
6 July 2021, SDTimes.com

Druid-Backer Imply Lands $70M to Drive Analytics in Motion
17 June 2021, Datanami

Introducing Apache Druid
17 January 2020, insideBIGDATA

Imply Closes $70 Million Series C at $700M Valuation to Extend Leadership as Foundational Platform for Analytics-in-Motion
16 June 2021, Business Wire

The Apache Software Foundation Announces Apache®
3 February 2021, GlobeNewswire

provided by Google News

Amazon’s Elasticsearch fork OpenSearch hits prime time
13 July 2021, VentureBeat

AWS Elasticsearch fork exits beta, but legal battle rages on
14 July 2021, TechRadar

OpenSearch, the AWS-sponsored Elasticsearch fork, reaches 1.0 milestone
13 July 2021, The Register

How to deploy an Elasticsearch cluster on Ubuntu Server 20.04
15 July 2021, TechRepublic

Elastic Introduces the Industry's First Free and Open Limitless XDR
3 August 2021, Business Wire

provided by Google News

What is Firebase?
2 August 2021, VentureBeat

Top 5 Advantages of Using Firebase for Mobile Apps Development
14 July 2021, PC Tech Magazine

2021 Stack Overflow Survey: React.js takes the web framework crown, Python is in-demand, and devs still love Rust
3 August 2021, Developer Tech

Algolia Collaborates with Firebase to Offer Database Search Globe
18 May 2021, GlobeNewswire

Introduction to the Firebase Database Database Journal
9 March 2020, Database Journal

provided by Google News

Toshiba Memory America Optimizes RocksDB for SSDs
1 August 2019, Business Wire

Running Mongorocks In Production
27 April 2016, DZone News

All 51 startups that debuted at Y Combinator W17 Demo Day 2
22 March 2017, TechCrunch

Alluxio Bolsters Data Orchestration for Hybrid Cloud World
11 July 2019, Datanami

Information Builders Bets on Kafka for Real-Time Analytics
7 June 2019, RTInsights

provided by Google News

Job opportunities

Director of Security and Operations
Meteor Development Group, San Francisco, CA

Senior Solutions Consultant
Cloudera, Newark, NJ

Software Engineer, Real-Time Analytics
Uber, Sunnyvale, CA

Data Scientist
Infosys Limited, Richardson, TX

Head of Engineering
Ganit, Jersey City, NJ

Front End Web Developer (PHP/MySQL)
Advanced Technologies Central, LLC, Los Angeles, CA

Elasticsearch Developer
Summit Racing Equipment, Tallmadge, OH

Full Stack Developers
Quisitive, United States

Full Stack Developer
Vintage Software, LLC, Jackson, MO

Director of Engineering
Activate Care Technologies, Boston, MA

Database Product Manager, Firebase, Core Developer
Google, San Francisco, CA

Vice President, Data Strategy
Hathway, Remote

[Parade] Full-Stack Engineer
RocketPower, Remote

Data Analytics Engineer: REMOTE Position
The Tapping Solution, Remote

Jr. Mobile Developer
Bonneville Phoenix, Salt Lake City, UT

Software Engineer, AR Server Infrastructure
Niantic, Sunnyvale, CA

Software Engineer
DataDog, New York, NY

Data Engineer III
Mind Fast Find, Seattle, WA

Database Adminstrator
TradingScreen, New York, NY

Applied Data Scientist III
Discovery, New York, NY

jobs by Indeed



Share this page

Featured Products

MariaDB logo

SkySQL, the ultimate
MariaDB cloud, is here.

Get started with SkySQL today!

Neo4j logo

See for yourself how a graph database can make your life easier.
Use Neo4j online for free.

AllegroGraph logo

Graph Database Leader for AI Knowledge Graph Applications - The Most Secure Graph Database Available.
Free Download

Couchbase logo

The modern database for enterprise applications. Build fast. Scale Big. Save more.
Get started today.

Datastax Astra logo

Build cloud-native apps fast with Astra, the open-source, multi-cloud stack for
modern data apps.
Get started with 5 GB free..

Present your product here