48 lines
1.4 KiB
Plaintext
48 lines
1.4 KiB
Plaintext
ElasticSearch
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A Distributed RESTful Search Engine
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ElasticSearch is a distributed RESTful search engine built for the
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cloud.
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Features include:
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Distributed and Highly Available Search Engine.
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Each index is fully sharded with a configurable number of shards.
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Each shard can have one or more replicas.
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Read / Search operations performed on either one of the replica shard.
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Multi Tenant with Multi Types.
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Support for more than one index.
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Support for more than one type per index.
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Index level configuration (number of shards, index storage, ...).
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Various set of APIs
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HTTP RESTful API
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Native Java API.
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All APIs perform automatic node operation rerouting.
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Document oriented
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No need for upfront schema definition.
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Schema can be defined per type for customization of the indexing
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process.
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Reliable, Asynchronous Write Behind for long term persistency.
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(Near) Real Time Search.
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Built on top of Lucene
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Each shard is a fully functional Lucene index
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All the power of Lucene easily exposed through simple configuration
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and plugins.
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Per operation consistency
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Single document level operations are atomic, consistent, isolated
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and durable.
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This script requires a 'elasticsearch' user/group to exist before
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running. The recommended UID/GID is 280. You can create these like
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so:
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groupadd -g 280 elasticsearch
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useradd -u 280 -g elasticsearch -s /bin/sh elasticsearch
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