Elasticsearch v5.5.2 已发布，ElasticSearch 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。
Bug 修复：
Aggregations
Fixes array out of bounds for value count agg
Core
Release operation permit on thread-pool rejection
Inner Hits
Fix inner hits to work with queries wrapped in an indices query
When fetching nested inner hits only access stored fields when needed
Logging
Declare XContent deprecation logger as static
Query DSL
Parse "*" in query_string_query as MatchAllDocsQuery
软件详情：https://www.elastic.co/guide/en/elasticsearch/reference/current/release-notes-5.5.2.html
下载地址：http://git.oschina.net/mirrors/elasticsearch
来自:开源中国社区
