【原创】大数据基础之ElasticSearch（3）升级

【【原创】大数据基础之ElasticSearch（3）升级】的更多相关文章

【原创】大数据基础之ElasticSearch（3）升级

elasticsearch版本升级方案常用的滚动升级过程(Rolling Upgrade)如下: $ curl -XPUT '$es_server:9200/_cluster/settings?pretty' -H 'Content-Type: application/json' -d '{"transient":{"cluster.routing.allocation.enable":"none"}}'$ curl -XPOST '$es_s…

【原创】大数据基础之ElasticSearch（2）常用API整理

Fortunately, Elasticsearch provides a very comprehensive and powerful REST API that you can use to interact with your cluster. Among the few things that can be done with the API are as follows: Check your cluster, node, and index health, status, and…

【原创】大数据基础之ElasticSearch（4）es数据导入过程

1 准备analyzer 内置analyzer 参考:https://www.elastic.co/guide/en/elasticsearch/reference/current/analysis-analyzers.html 中文分词 smartcn 参考:https://www.elastic.co/guide/en/elasticsearch/plugins/current/analysis-smartcn.html ik $ bin/elasticsearch-plugin insta…

【原创】大数据基础之ElasticSearch（1）简介、安装、使用

ElasticSearch 6.6.0 官方:https://www.elastic.co/ 一简介 ElasticSearch简单来说是对lucene的分布式封装,增加了shard(每个shard是一个子索引,也是一个lucene的index)和replica的概念:所以在ElasticSearch也可以见到lucene中的概念,比如index.document等. Elasticsearch is a highly scalable open-source full-text search…

【原创】大数据基础之ElasticSearch（5）重要配置及调优

Index Settings 重要索引配置 Index level settings can be set per-index. Settings may be: 1 static 静态索引配置 They can only be set at index creation time or on a closed index. 只能在创建索引时设置或者在closed状态的索引上设置: index.number_of_shards The number of primary shards that…

【原创】大数据基础之Zookeeper（2）源代码解析

核心枚举 public enum ServerState { LOOKING, FOLLOWING, LEADING, OBSERVING; } zookeeper服务器状态:刚启动LOOKING,follower是FOLLOWING,leader是LEADING,observer是OBSERVING: public enum LearnerType { PARTICIPANT, OBSERVER; } 简单来说,zookeeper启动的核心类是QuorumPeerMain,启动之后会加载配置,…

大数据篇：ElasticSearch

ElasticSearch ElasticSearch是什么 ElasticSearch是一个基于Lucene的搜索服务器.它提供了一个分布式多用户能力的全文搜索引擎,基于RESTful web接口.Elasticsearch是用Java语言开发的,并作为Apache许可条款下的开放源码发布,是一种流行的企业级搜索引擎.ElasticSearch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.官方客户端在Java..NET(C#).PHP.Python.Apache Groovy…