分布式搜索引擎，elasticsearch 2.0.0 beta1 发布

Elastic Search 是一个基于Lucene构建的开源，分布式，RESTful搜索引擎。设计用于云计算中，能够达到实时搜索，稳定，可靠，快速，安装使用方便。支持通过HTTP使用JSON进行数据索引。

ElasticSearch 提供多种语言的客户端 API：

• Java API — 1.x — other versions

• JavaScript API — 2.4 — other versions

• Groovy API — 1.x — other versions

• .NET API

• PHP API — 1.0 — other versions

• Perl API

• Python API

• Ruby API

提供 Marvel 可视化监控台：

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

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

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

• Structured, readable, exceptions.

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

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

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

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

• Binding only to localhost by default.

• Cluster state diffs for faster change propagation.

完整更新内容请看：release note

下载页面：v2.0.0-beta1