分布式搜索引擎，elasticsearch 2.0.0 beta1 發布

Elastic Search 是一個基于Lucene構建的開源，分布式，RESTful搜索引擎。設計用于云計算中，能夠達到實時搜索，穩定，可靠，快速，安裝使用方便。支持通過HTTP使用JSON進行數據索引。

ElasticSearch 提供多種語言的客戶端 API：

• Java API — 1.x — other versions

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• JavaScript API — 2.4 — other versions

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• Groovy API — 1.x — other versions

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• .NET API

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• PHP API — 1.0 — other versions

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• Perl API

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• Python API

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• Ruby API

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  提供 Marvel 可視化監控臺：

  

  elasticsearch 2.0.0 beta1 發布，主要更新內容如下：

  • Pipeline Aggregations which allow you to run aggregations on the results of other aggregations, including derivatives, moving averages, and Holt Winters predictive algorithms.

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  • Better store compression to fit more data into your disks and file system cache.

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  • Better heap usage with doc-values-by-default, reduced memory usage during merges, and roaring bitsets for filter caching.

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  • Structured, readable, exceptions.

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  • Optimised query execution order, auto-caching of filters, and parent-child rewritten for faster queries.

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  • More reliance on feedback loops instead of settings for auto-regulation.

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  • Writes to transaction logs are atomic and durable by default.

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  • A big cleanup to type mappings to make them safe, unambiguous, and reliable.

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  • Binding only to localhost by default.

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  • Cluster state diffs for faster change propagation.

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    完整更新內容請看：release note

    下載頁面：v2.0.0-beta1

    
    
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