Newbies What Next ? News Forums Calendar


News Sections
General News (3987/0)
Reviews (637/0)
Press Releases (465/0)
Distributions (197/0)
Software (915/0)
Hardware (537/0)
Security (192/0)
Tutorials (356/0)
Off Topic (181/0)

User Functions


Don't have an account yet? Sign up as a New User

There are no upcoming events



ElasticSearch is a flexible and powerful open source, distributed RESTful search engine and analytics engine for the cloud. It is developed in Java. Elasticsearch allows you to start small, but will grow with your business. It is built to scale horizontally out of the box.

ElasticSearch is a highly available and distributed search engine. Each index is broken down into shards, and each shard can have one or more replica. By default, an index is created with 5 shards and 1 replica per shard (5/1). There are many topologies that can be used, including 1/10 (improve search performance), or 20/1 (improve indexing performance, with search executed in a map reduce fashion across shards).

Elasticsearch is API driven. Almost any action can be peformed using a simple RESTful API using JSON over HTTP.

 ElasticSearch 1.7.0

Free to download


Apache License 2.0

Shay Banon and ElasticSearch


System Requirements

Documentation, Blog, Mailing List, Twitter, StumbleUpon

Selected Reviews:
Sematext Blog, Socialcast, An Experiment to Compare ElasticSearch with Apache Solr

Features include:

  • Distributed and highly available search engine
  • Replicas are near real-time
  • Each index is fully sharded with a configurable number of shards
  • Each shard can have one or more replicas
  • Read / Search operations performed on either one of the replica shard
  • Multi tenant with multi types
  • Support for more than one index
  • Support for more than one type per index
  • Index level configuration (number of shards, index storage, ...)
  • Various set of APIs
  • Native Java API
  • All APIs perform automatic node operation rerouting
  • Document oriented
  • No need for upfront schema definition
  • Schema can be defined per type for customization of the indexing process
  • Reliable, Asynchronous Write Behind for long term persistency
  • Fully supports the near real time search of Apache Lucene. Search comes with multi-language support, a powerful query language, support for geolocation, context aware did-you-mean suggestions, autocomplete and search snippets
  • Built on top of Lucene
  • Each shard is a fully functional Lucene index
  • All the power of Lucene easily exposed through simple configuration / plugins
  • Per operation consistency
  • Gateway, which handles the long term persistence of the index. This makes full backups easier
  • Supports real-time GET requests, which makes it suitable as a NoSQL solution,
  • Single document level operations are atomic, consistent, isolated and durable
  • Store complex real world entities in Elasticsearch as structured JSON documents. All fields are indexed by default, and all the indices can be used in a single query, to return results at breath taking speed

Return to Search Engines for Big Data Home Page

Bookmark and Share

Last Updated Sunday, July 26 2015 @ 12:40 PM EDT

We have written a range of guides highlighting excellent free books for popular programming languages. Check out the following guides: C, C++, C#, Java, JavaScript, CoffeeScript, HTML, Python, Ruby, Perl, Haskell, PHP, Lisp, R, Prolog, Scala, Scheme, Forth, SQL, Node.js (new), Fortran (new), Erlang (new), Pascal (new), and Ada (new).

Group Tests
100 Essential Apps
All Group Tests

Top Free Software
5 Office Suites
3 Lean Desktops
7 Document Processors
4 Distraction Free Tools
9 Project Management
4 Business Solutions
9 Groupware Apps
14 File Managers
10 Databases
21 Backup Tools
21 Productivity Tools
5 Note Taking Apps
9 Terminal Emulators
21 Financial Tools
5 Bitcoin Clients
21 Text Editors
21 Video Emulators
21 Home Emulators
42 Graphics Apps
6 CAD Apps
42 Scientific Apps
10 Web Browsers
42 Email Apps
12 Instant Messaging
10 IRC Clients
7 Twitter Clients
12 News Aggregators
11 VoIP Apps
42 Best Games
9 Steam Games
42 Audio Apps
5 Music Streaming
42 Video Apps
5 YouTube Tools
80 Security Apps
9 System Monitoring
8 Geometry Apps
Free Console Apps
14 Multimedia
4 Audio Grabbers
9 Internet Apps
3 HTTP Clients
5 File Managers
8 Compilers
9 IDEs
9 Debuggers
7 Revision Control Apps
6 Doc Generators
Free Web Software
21 Web CMS
14 Wiki Engines
8 Blog Apps
6 eCommerce Apps
5 Human Resource Apps
10 ERP
10 CRM
6 Data Warehouse Apps
8 Business Intelligence
6 Point-of-Sale

Other Articles
Migrating from Windows
Back up your data
20 Free Linux Books
24 Beginner Books
12 Shell Scripting Books

Older Stories
Saturday 05/16
  • 9 First Steps with Ubuntu 15.04 (0)
  • Excellent Console Log File Analyzers (0)

  • Monday 05/04
  • 100 Essential Free Apps (0)

  • Saturday 04/25
  • What are good command line HTTP clients? (0)

  • Sunday 04/12
  • First Peek at XBian on the Raspberry Pi 2 (0)

  • Saturday 04/04
  • First Look at OSMC RC on the Raspberry Pi 2 (0)

  • Sunday 03/29
  • First Steps with OpenELEC on the Raspberry Pi 2 (0)
  • Ubuntu MATE 15.04 for Raspberry Pi 2 (0)

  • Monday 03/16
  • MIPS Creator CI20 v Raspberry Pi 2 (0)
  • Raspberry Pi 2: Raspbian (ARMv6) v Linaro (ARMv7) (0)

  • Vote

    What Linux distribution do you run on your main computer?

    989 votes | 3 comments

    Built with GeekLog and phpBB
    Comments to the webmaster are welcome
    Copyright 2009 - All rights reserved