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Original author(s) | Shay Banon |
---|---|
Developer(s) | Elastic NV |
Initial release | 8 February 2010 |
Stable release | |
Repository | github |
Written in | Java |
Operating system | Cross-platform |
Type | Search and index |
License | Triple-licensed Elastic License (proprietary; source-available), Server Side Public License (proprietary; source-available) and Affero General Public License (free and open-source) |
Website | www |
Elasticsearch is a search engine based on the Lucene library. It provides a distributed, multitenant-capable full-text search engine with an HTTP web interface and schema-free JSON documents. Elasticsearch is developed in Java and is triple-licensed under the (source-available) Server Side Public License, the Elastic license, and the Affero General Public License, [2] while other parts [3] fall under the proprietary (source-available) Elastic License. Official clients are available in Java, [4] .NET [5] (C#), PHP, [6] Python, [7] Ruby [8] and many other languages. [9] According to the DB-Engines ranking, Elasticsearch is the most popular enterprise search engine. [10]
Shay Banon created the precursor to Elasticsearch, called Compass, in 2004. [11] 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". [11] 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. [11] Shay Banon released the first version of Elasticsearch in February 2010. [12]
Elastic NV was founded in 2012 to provide commercial services and products around Elasticsearch and related software. [13] In June 2014, the company announced raising $70 million in a Series C funding round, just 18 months after forming the company. The round was led by New Enterprise Associates (NEA). Additional funders include Benchmark Capital and Index Ventures. This round brought total funding to $104M. [14]
In March 2015, the company Elasticsearch changed its name to Elastic. [15]
In June 2018, Elastic filed for an initial public offering with an estimated valuation of between 1.5 and 3 billion dollars. [16] On 5 October 2018, Elastic was listed on the New York Stock Exchange. [17]
Major releases: [18]
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. [19] [20] 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. [20] [21] 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". Amazon responded with plans to fork the projects and continue development under Apache License 2.0. [2] [22] 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. [23] [24] [25] Due to potential trademark issues with using the name "Elasticsearch", AWS rebranded their fork as OpenSearch in April 2021. [26] [27] .
In August 2024 the GNU Affero General Public Licence was added as an option, making it free and open-source once again. [2]
This article may be too technical for most readers to understand.(May 2023) |
Elasticsearch can be used to search any kind of document. It provides scalable search, has near real-time search, and supports multitenancy. [28] "Elasticsearch is distributed, which means that indices can be divided into shards and each shard can have zero or more replicas. Each node hosts one or more shards and acts as a coordinator to delegate operations to the correct shard(s). Rebalancing and routing are done automatically". [28] Related data is often stored in the same index, which consists of one or more primary shards, and zero or more replica shards. Once an index has been created, the number of primary shards cannot be changed. [29]
Elasticsearch 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. The four products are designed for use as an integrated solution, referred to as the "Elastic Stack". [30] (Formerly the "ELK stack", short for "Elasticsearch, Logstash, Kibana".)
Elasticsearch uses Lucene and tries to make all its features available through the JSON and Java API. It supports facetting and percolating (a form of prospective search), [31] [32] which can be useful for notifying if new documents match for registered queries. Another feature, "gateway", handles the long-term persistence of the index; [33] for example, an index can be recovered from the gateway in the event of a server crash. Elasticsearch supports real-time GET requests, which makes it suitable as a NoSQL datastore, [34] but it lacks distributed transactions. [35]
On 20 May 2019, Elastic made the core security features of the Elastic Stack available free of charge, including TLS for encrypted communications, file and native realm for creating and managing users, and role-based access control for controlling user access to cluster APIs and indexes. [36] The corresponding source code is available under the “Elastic License”, a source-available license. [37] In addition, Elasticsearch now offers SIEM [38] and Machine Learning [39] as part of its offered services.
Developed from the Found acquisition by Elastic in 2015, [40] Elastic Cloud is a family of Elasticsearch-powered SaaS offerings which include the Elasticsearch Service, as well as Elastic App Search Service, and Elastic Site Search Service which were developed from Elastic's acquisition of Swiftype. [41] In late 2017, Elastic formed partnerships with Google to offer Elastic Cloud in Google Cloud Platform (GCP), and Alibaba to offer Elasticsearch and Kibana in Alibaba Cloud.
Elasticsearch Service on Elastic Cloud is the official hosted and managed Elasticsearch and Kibana offering from the creators of the project since August 2018. [42] [43] Elasticsearch Service users can create secure deployments with partners, Google Cloud Platform (GCP) and Alibaba Cloud. [44] [45]
AWS previously offered Elasticsearch as a managed service beginning 2015. [46] [47] [48] There are many companies that currently offer managed services, such as Elastic Co, BigData Boutique, Instacluster, and Dattell. [49] [50] [51] [52] Such managed services provide hosting, deployment, backup and other support. [53] Most managed services also include support for Kibana.[ citation needed ]
Amazon Web Services, Inc. (AWS) is a subsidiary of Amazon that provides on-demand cloud computing platforms and APIs to individuals, companies, and governments, on a metered, pay-as-you-go basis. Clients will often use this in combination with autoscaling. These cloud computing web services provide various services related to networking, compute, storage, middleware, IoT and other processing capacity, as well as software tools via AWS server farms. This frees clients from managing, scaling, and patching hardware and operating systems. One of the foundational services is Amazon Elastic Compute Cloud (EC2), which allows users to have at their disposal a virtual cluster of computers, with extremely high availability, which can be interacted with over the internet via REST APIs, a CLI or the AWS console. AWS's virtual computers emulate most of the attributes of a real computer, including hardware central processing units (CPUs) and graphics processing units (GPUs) for processing; local/RAM memory; Hard-disk(HDD)/SSD storage; a choice of operating systems; networking; and pre-loaded application software such as web servers, databases, and customer relationship management (CRM).
In computing, a solution stack or software stack is a set of software subsystems or components needed to create a complete platform such that no additional software is needed to support applications. Applications are said to "run on" or "run on top of" the resulting platform.
A Contributor License Agreement (CLA) defines the terms under which intellectual property has been contributed to a company/project, typically software under an open source license.
A database shard, or simply a shard, is a horizontal partition of data in a database or search engine. Each shard is held on a separate database server instance, to spread load.
Eucalyptus is a paid and open-source computer software for building Amazon Web Services (AWS)-compatible private and hybrid cloud computing environments, originally developed by the company Eucalyptus Systems. Eucalyptus is an acronym for Elastic Utility Computing Architecture for Linking Your Programs To Useful Systems. Eucalyptus enables pooling compute, storage, and network resources that can be dynamically scaled up or down as application workloads change. Mårten Mickos was the CEO of Eucalyptus. In September 2014, Eucalyptus was acquired by Hewlett-Packard and then maintained by DXC Technology. After DXC stopped developing the product in late 2017, AppScale Systems forked the code and started supporting Eucalyptus customers.
Redis is a source-available, in-memory storage, used as a distributed, in-memory key–value database, cache and message broker, with optional durability. Because it holds all data in memory and because of its design, Redis offers low-latency reads and writes, making it particularly suitable for use cases that require a cache. Redis is the most popular NoSQL database, and one of the most popular databases overall. Redis is used in companies like Twitter, Airbnb, Tinder, Yahoo, Adobe, Hulu, Amazon and OpenAI.
The open-core model is a business model for the monetization of commercially produced open-source software. The open-core model primarily involves offering a "core" or feature-limited version of a software product as free and open-source software, while offering "commercial" versions or add-ons as proprietary software. The term was coined by Andrew Lampitt in 2008.
Docker is a set of platform as a service (PaaS) products that use OS-level virtualization to deliver software in packages called containers. The service has both free and premium tiers. The software that hosts the containers is called Docker Engine. It was first released in 2013 and is developed by Docker, Inc.
Kibana is a source-available data visualization dashboard software for Elasticsearch.
Amazon Lumberyard is a now-superseded freeware cross-platform game engine developed by Amazon and based on CryEngine, which was licensed from Crytek in 2015. In July 2021, Amazon and the Linux Foundation announced that parts of the engine would be used to create a new open source game engine called Open 3D Engine, which would replace it. A new Open 3D Foundation, run by the Linux Foundation, will manage the new engine, which will be licensed under the open source Apache 2.0 license. The new engine is reportedly partially based on Lumberyard but with many parts rewritten, and is considered a new engine.
This is a timeline of Amazon Web Services, which offers a suite of cloud computing services that make up an on-demand computing platform.
Elastic NV is an American-Dutch company that was founded in 2012 in Amsterdam, the Netherlands, and was previously known as Elasticsearch. It is a search company that builds self-managed and software as a service (SaaS) offerings for search, logging, security, observability, and analytics use cases.
The Server Side Public License (SSPL) is a source-available copyleft software license introduced by MongoDB Inc. in 2018.
OpenSearch is a family of software consisting of a search engine, and OpenSearch Dashboards, a data visualization dashboard for that search engine. The software started in 2021 as a fork of Elasticsearch and Kibana, with development led by Amazon Web Services.
Teunis Steven Schuurman is a Dutch technology and media entrepreneur, best known for co-founding and being the first CEO of Elastic, a data search and analytics company listed at the NYSE (ESTC). After stepping down as CEO of Elastic in 2017, he started to work towards dedicating his time and resources exclusively to philanthropy. He is also the co-founder of Atlantis Entertainment, SpringSource and the founder of the non-profit organisations the Dreamery Foundation and FutureNL.
Trino is an open-source distributed SQL query engine designed to query large data sets distributed over one or more heterogeneous data sources. Trino can query data lakes that contain open column-oriented data file formats like ORC or Parquet residing on different storage systems like HDFS, AWS S3, Google Cloud Storage, or Azure Blob Storage using the Hive and Iceberg table formats. Trino also has the ability to run federated queries that query tables in different data sources such as MySQL, PostgreSQL, Cassandra, Kafka, MongoDB and Elasticsearch. Trino is released under the Apache License.
OpenSearch or Open Search may refer to:
Valkey is an open-source in-memory storage, used as a distributed, in-memory key–value database, cache and message broker, with optional durability. Because it holds all data in memory and because of its design, Valkey offers low-latency reads and writes, making it particularly suitable for use cases that require a cache. Valkey is the successor to Redis, the most popular NoSQL database, and one of the most popular databases overall. Valkey or its predecessor Redis are used in companies like Twitter, Airbnb, Tinder, Yahoo, Adobe, Hulu, Amazon and OpenAI.