模塊 · Elasticsearch 5.4 中文文檔

# 模塊原文鏈接 : [https://www.elastic.co/guide/en/elasticsearch/reference/current/modules.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules.html) 譯文鏈接 : [http://www.apache.wiki/display/Elasticsearch/Modules](http://www.apache.wiki/display/Elasticsearch/Modules) 貢獻者 : [阿叩](/display/~luanqing)，[ApacheCN](/display/~apachecn)，[Apache中文網](/display/~apachechina) MarkDown文件：[Modules.md](https://github.com/aqlu/elasticsearch_translate/blob/master/Modules.md) ## 模塊本章節負責介紹Elasticsearch包含的各個模塊的功能，每個模塊的配置都可以通過如下方式進行配置： _靜態的_? ??_這些配置項必須基于節點來進行設置，在啟動節點前可以通過`elasticsearch.yml`配置文件、環境變量、命令行參數方式來進行配置。他們必須明確地在集群中的每個節點上進行設置。_ _動態的_? ??_這些配置可以通過群集的[cluster-update-settings](https://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-update-settings.html)?API進行動態更新。_ 本節介紹的模塊有： [Cluster-level routing and shard allocation（集群級別的路由與分片分配）](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-cluster.html)） ??_用來控制在何處、何時、以及如何給節點分配分片。_ [Discovery（發現）](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-discovery.html) ??構成一個_集群的節點彼此之間是如何發現的。_ [Gateway（網關）](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-gateway.html) ??_集群啟動恢復前需要多少個節點加入。_ [HTTP](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-http.html) ??_用來控制配置`HTTP REST`接口。_ [Indices（索引）](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-indices.html) ??_所有跟索引相關的設置。_ [Network（網絡）](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-network.html) ??_控制默認的網絡設置。_ [Node client（節點客戶端）](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-node.html) ??_一個加入集群的Java客戶端節點，但不能保存數據或作為主節點。_ [Painless](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-scripting-painless.html) ??_Elasticsearch內置的腳本語言，遵循盡可能的安全設計。_ [Plugins（插件）](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-plugins.html) ??_通過插件來擴展Elasticsearch的功能。_ [Scripting（腳本）](/pages/viewpage.action?pageId=4260408) ??_通過Lucene表達式、Groovy、Python、以及Javascript來自定義腳本。你也可以使用內置的腳本語言[Painless](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-scripting-painless.html)。_ [Snapshot/Restore（快照/還原）](/pages/viewpage.action?pageId=9405386) ??_通過快照與還原模塊來備份你的數據。_ [Thread pools（線程池）](/pages/viewpage.action?pageId=9405389) ??_Elasticsearch專用的線程池的信息。_ [Transport（傳輸）](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-transport.html) ??_Elasticsearch內部各節點之間的網絡傳輸層通信配置。_ [Tribe nodes](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-tribe.html) ??_Tribe節點能加入一個或多個集群，并作為它們之間的聯合客戶端。_ [Cross cluster Search（跨集群搜索）](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-cross-cluster-search.html) ??_跨集群搜索功能可以通過一個不加入集群、并且能作為它們之間的聯合客戶端來實現一個以上集群的搜索。_