elasticsearch 入门安装

第1章 课程介绍

第2章 安装

下载地址 : https://www.elastic.co/cn/downloads/elasticsearch 

报错./bin/elasticsearch-env:行126: 未预期的符号 `<' 附近有语法错误

将./bin/elasticsearch-env 文件第126行修改如下

[2021-01-04T20:01:14,878][WARN ][o.e.c.r.a.DiskThresholdMonitor] [vagrant-centos7] flood stage disk watermark [95%] exceeded on [zQX8acg7QSiu91oP_jZMIg][vagrant-centos7][/home/wwwroot/default/newproject/elasearch/elasticsearch-7.10.1/data/nodes/0] free: 8gb[3.4%], all indices on this node will be marked read-only

参考如下:

https://stackoverflow.com/questions/48119189/elasticsearch-6-index-change-to-read-only-after-few-second

 ElasticSearch常见的报错及解决

2.3插件安装

npm run start  运行elasticsearch-head插件

报错:Exception in thread "main" ElasticsearchParseException[malformed, expected end of settings but encountered additional content starting at line number: [93], column number: [1]]; nested: MarkedYAMLException[expected '<document start>', but found '<block mapping start>'

 in 'reader', line 93, column 1:

    http.cors.enabled: true

    ^

 at [Source: (sun.nio.ch.ChannelInputStream); line: 93, column: 1]]; nested: ParserException[expected '<document start>', but found '<block mapping start>'

 in 'reader', line 93, column 1:

    http.cors.enabled: true

    原因: 原来是 配置前要加个空格

./bin/elasticsearch -d  后台启动elasticsearch

第三章:基础概念

第四章 基本用法

第五章:

1. query

参考： https://www.jianshu.com/p/403c9d5b1463

https://www.jianshu.com/p/7d687c9dba4f