elasticsearch 安装8.5.3

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

支持：https://www.elastic.co/cn/support/matrix

# elastrcsearch.yml需要注意
xpack安全配置修改为: false
# 解决[.geoip_databases]  index are active  问题
ingest.geoip.downloader.enabled: false
# 自定义数据目录地址
path.data:
path.log:
# 解决跨域问题
http.cors.enabled: true
http.cors.allow-origin: "*"

查找进程： 

lsof -i:5601

head 插件地址

https://github.com/mobz/elasticsearch-head/

每一分片都是Lucene实例。

# 当前文档地址
https://www.elastic.co/guide/en/elasticsearch/reference/current/elasticsearch-intro.html
# 所有文档地址
https://www.elastic.co/guide/index.html
# 修改elasticsearch密码
bin/elasticsearch-reset-password -u elastic
# 自定义elasticsearch密码
bin/elasticsearch-reset-password -u elastic -i

索引操作

GET _cat/health?v
# 索引查询
GET _cat/indices?v
# 集群状态查看
GET _cluster/health
# 创建索引
PUT /test?pretty
# 查看索引
GET /test/_search
# 删除索引
DELETE /test
# 插入数据 或 全量更新
PUT /test/_doc/1
{
  "name": "李四",
  "age": 22,
  "student": ["本科", "大专"]
}
# 查看数据
GET /test/_doc/1
# 修改字段字段内容
POST /test/_update/1
{
  "doc": {
    "age": 25
  }  
}
# 删除数据
DELETE /test/_doc/1