What's New in Elasticsearch?

Have you ever needed to change mappings or gain performance benefits of one of the latest Elasticsearch data structures? Elasticsearch 2.3 is for you. In addition to our brand-new reindex API that can reindex data without it ever leaving the cluster, 2.3 includes all of the latest advances in speed, security, scalability, and hardware efficiency. Plus it has a brand-new built-in task management API and is compatible with the 2.3 versions of Shield (security), Marvel (monitoring), Watcher (alerts), and more. Learn more.

Real-Time Data

How long can you wait for insights on your fast-moving data? With Elasticsearch, all data is immediately made available for search and analytics.

Real-Time Advanced Analytics

Combining the speed of search with the power of analytics changes your relationship with your data. Interactively search, discover, and analyze to gain insights that improve your products or streamline your business.

Massively Distributed

Elasticsearch allows you to start small and scale horizontally as you grow. Simply add more nodes, and let the cluster automatically take advantage of the extra hardware. Petabytes of data? Thousands of nodes? No problem.

High Availability

Elasticsearch clusters are resilient — they will detect new or failed nodes, and reorganize and rebalance data automatically, to ensure that your data is safe and accessible.


A cluster may contain multiple indices that can be queried independently or as a group. Index aliases allow filtered views of an index, and may be updated transparently to your application.

Full-Text Search

Elasticsearch builds distributed capabilities on top of Apache Lucene to provide the most powerful full- text search capabilities available. Powerful, developer-friendly query API supports multilingual search, geolocation, contextual did-you-mean suggestions, autocomplete, and result snippets.


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 easily return complex results at breathtaking speed.


Elasticsearch allows you to get started fast. Simply index a JSON document and it will automatically detect the data structure and types, create an index, and make your data searchable. You also have full control to customize how your data is indexed.

Developer-Friendly, RESTful API

Elasticsearch is API driven. Almost any action can be performed using a simple RESTful API using JSON over HTTP. Client libraries are available for many programming languages.

Per-Operation Persistence

Elasticsearch puts your data safety first. Document changes are recorded in transaction logs on multiple nodes in the cluster to minimize the chance of any data loss.

Apache 2 Open Source License

Elasticsearch can be downloaded, used, and modified free of charge. It is available under the Apache 2 license, one of the most flexible open source licenses available.

Build on top of Apache Lucene™

Apache Lucene is a high performance, full-featured Information Retrieval library, written in Java. Elasticsearch uses Lucene internally to build its state of the art distributed search and analytics capabilities.