elasticsearch 2.0.0 beta1 发布，分布式搜索引擎
elasticsearch 2.0.0 beta1 发布，主要更新内容如下：
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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.
完整更新内容请看： release note
下载页面： v2.0.0-beta1
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：
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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
提供 Marvel 可视化监控台：
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666
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文章和留言都翻到11页了 没有OOM
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朋友，翻页到11页，及以后，会出现OOM，无法访问
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版本号是多少，你可以下载哪个代码仓库，jdk选1.8 直接跑就行
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