ElasticSearch - Distributed, RESTful search and analytics engine

  •        8016

Elasticsearch is a distributed, RESTful search and analytics engine capable of solving a growing number of use cases. As the heart of the Elastic Stack, it centrally stores your data so you can discover the expected and uncover the unexpected.

Its feature include:

  • Distributed and Highly Available Search Engine.
    • 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
    • HTTP RESTful API
    • 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.
  • (Near) Real Time Search.
  • 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
    • Single document level operations are atomic, consistent, isolated and durable.

https://www.elastic.co/products/elasticsearch
https://github.com/elastic/elasticsearch

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