发布于 2017-06-02 00:55:12 | 241 次阅读 | 评论: 0 | 来源: 网友投递
这里有新鲜出炉的ElasticSearch权威指南，程序狗速度看过来！
ElasticSearch 基于Lucene的搜索引擎
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。
我们建立一个网站或应用程序，并要添加搜索功能，令我们受打击的是：搜索工作是很难的。我们希望我们的搜索解决方案要快，我们希望有一个零配置和一个完全免费的搜索模式，我们希望能够简单地使用JSON通过HTTP的索引数据，我们希望我们的搜索服务器始终可用，我们希望能够一台开始并扩展到数百，我们要实时搜索，我们要简单的多租户，我们希望建立一个云的解决方案。Elasticsearch旨在解决所有这些问题和更多的。
ElasticSearch 5.3.3 和 5.4.1 发布了，更新如下：
5.3.3
Network
Index APIs
Packaging
Search
5.4.1
Aggregations
Allow scripted metric agg to access _score #24295
Core
Improve bootstrap checks error messages #24548
Internal
Log JVM arguments on startup #24451
Network
Disable the Netty recycler in the client #24793 (issues: #22452, #24721)
Remove Netty logging hack #24653 (issues: #24469, #5624, #6568, #6696)
Snapshot/Restore
Stats
Show JVM arguments #24450
Aggregations
Allocation
Core
Fix cache expire after access #24546
Index APIs
Fix legacy GeoPointField decoding in FieldStats #24534 (issue: #24275)
Validates updated settings on closed indices #24487 (issue: #23787)
Internal
Remove _UNRELEASED from Version constants for released versions #24764
Avoid race when shutting down controller processes #24579
Fix NPE if field caps request has a field that exists not in all indices #24504
More Like This
Network
Notify onConnectionClosed rather than onNodeDisconnect to prune transport handlers #24639 (issues: #24557, #24575, #24632)
SniffNodesSampler should close connection after handling responses #24632 (issues: #22828, #24557, #24575)
Packaging
Percolator
Fix range queries with date range based on current time in percolator queries. #24666 (issue: #23921)
Plugin Repository HDFS
Plugins
X-Pack plugin download fails on Windows desktop [ISSUE] #24570
Reindex API
Reindex: don’t duplicate _source parameter #24629 (issue: #24628)
Add qa module that tests reindex-from-remote against pre-5.0 versions of Elasticsearch #24561 (issues: #23828, #24520)
Scroll
Fix single shard scroll within a cluster with nodes in version >= 5.3 and <= 5.3 #24512
Search
Fix ExpandSearchPhase when response contains no hits #24688 (issue: #24672)
Include all aliases including non-filtering in _search_shards response #24489
Settings
Snapshot/Restore
Removes completed snapshot from cluster state on master change #24605 (issue: #24452)
Fix inefficient (worst case exponential) loading of snapshot repository #24510 (issue: #24509)
Core
Upgrade to Lucene 6.5.1 #24399
Network