![]() Elasticsearch supports real-time GET requests, which makes it suitable as a NoSQL datastore, but it lacks distributed transactions. Another feature, "gateway", handles the long-term persistence of the index for example, an index can be recovered from the gateway in the event of a server crash. It supports facetting and percolating (a form of prospective search), which can be useful for notifying if new documents match for registered queries. (Formerly the "ELK stack", short for "Elasticsearch, Logstash, Kibana".)Įlasticsearch uses Lucene and tries to make all its features available through the JSON and Java API. The four products are designed for use as an integrated solution, referred to as the "Elastic Stack". Įlasticsearch is developed alongside the data collection and log-parsing engine Logstash, the analytics and visualization platform Kibana, and the collection of lightweight data shippers called Beats. Once an index has been created, the number of primary shards cannot be changed. ![]() Related data is often stored in the same index, which consists of one or more primary shards, and zero or more replica shards. Rebalancing and routing are done automatically". Each node hosts one or more shards and acts as a coordinator to delegate operations to the correct shard(s). "Elasticsearch is distributed, which means that indices can be divided into shards and each shard can have zero or more replicas. It provides scalable search, has near real-time search, and supports multitenancy. Features Įlasticsearch can be used to search any kind of document. Due to potential trademark issues with using the name "Elasticsearch", AWS rebranded their fork as OpenSearch in April 2021. Other users of the ElasticSearch ecosystem, including Logz.io, CrateDB and Aiven, also committed to the need for a fork, leading to a discussion of how to coordinate the open source efforts. Amazon responded with plans to fork the projects and continue development under Apache License 2.0. Critics of the re-licensing decision predicted that it would harm Elastic's ecosystem and noted that Elastic had previously promised to "never.change the license of the Apache 2.0 code of Elasticsearch, Kibana, Beats, and Logstash". Elastic blamed Amazon Web Services (AWS) for this change, objecting to AWS offering Elasticsearch and Kibana as a service directly to consumers and claiming that AWS was not appropriately collaborating with Elastic. In January 2021, Elastic announced that starting with version 7.11, they would be relicensing their Apache 2.0 licensed code in Elasticsearch and Kibana to be dual licensed under Server Side Public License and the Elastic License, neither of which is recognized as an open-source license. On 5 October 2018, Elastic was listed on the New York Stock Exchange. In June 2018, Elastic filed for an initial public offering with an estimated valuation of between 1.5 and 3 billion dollars. ![]() In March 2015, the company Elasticsearch changed its name to Elastic. This round brought total funding to $104M. Additional funders include Benchmark Capital and Index Ventures. The round was led by New Enterprise Associates (NEA). In June 2014, the company announced raising $70 million in a Series C funding round, just 18 months after forming the company. Įlastic NV was founded in 2012 to provide commercial services and products around Elasticsearch and related software. Shay Banon released the first version of Elasticsearch in February 2010. So he created "a solution built from the ground up to be distributed" and used a common interface, JSON over HTTP, suitable for programming languages other than Java as well. While thinking about the third version of Compass he realized that it would be necessary to rewrite big parts of Compass to "create a scalable search solution". Shay Banon created the precursor to Elasticsearch, called Compass, in 2004. ![]() According to the DB-Engines ranking, Elasticsearch is the most popular enterprise search engine. NET ( C#), PHP, Python, Ruby and many other languages. Elasticsearch is developed in Java and is dual-licensed under the source-available Server Side Public License and the Elastic license, while other parts fall under the proprietary ( source-available) Elastic License. It provides a distributed, multitenant-capable full-text search engine with an HTTP web interface and schema-free JSON documents. Shay Banon talking about Elasticsearch at Berlin Buzzwords 2010Įlasticsearch is a search engine based on the Lucene library.
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