diff --git a/_sidebar.md b/_sidebar.md
index a3e55d9d0182407ed140917b2f4117627ceeec88..31446f52f57bdea76e43243493fd06b4ebe0acfb 100644
--- a/_sidebar.md
+++ b/_sidebar.md
@@ -30,7 +30,7 @@
   - [MySQL](doc/mysql.md)
   - [Neo4j](doc/neo4j.md)
   - [Redis](doc/redis.md)
-  - [ElasticSearch](doc/elasticsearch.md)
+  - [ElasticSearch](blog/elasticsearch/index.md)
 
 - 其他
   - [其他](doc/index.md)
diff --git a/blog/elasticsearch/aggregation.md b/blog/elasticsearch/aggregation.md
new file mode 100644
index 0000000000000000000000000000000000000000..37c8670026726fdacfde8153ce0dd25eefcb4f00
--- /dev/null
+++ b/blog/elasticsearch/aggregation.md
@@ -0,0 +1,21 @@
+# 聚合查询 aggregation
+
+1. 分桶聚合 Bucket agregations
+
+2. 指标聚合 Metrics
+
+- avg 平均值
+- max 最大值
+- min 最小值
+- sum 求和
+- cardinality 基数去重
+- value count 计数
+- stats  统计聚合
+- top hits 聚合
+
+3. 管道聚合 Pipeline
+- 对聚合的结果二次聚合
+- 分类：父级和兄弟级
+- 语法 buckets_path
+
+https://www.bilibili.com/video/BV1LY4y167n5?p=39&spm_id_from=pageDriver
\ No newline at end of file
diff --git a/blog/elasticsearch/index.md b/blog/elasticsearch/index.md
new file mode 100644
index 0000000000000000000000000000000000000000..7a69fd2161c2b060e94ea9d38d6815f6b530c647
--- /dev/null
+++ b/blog/elasticsearch/index.md
@@ -0,0 +1,42 @@
+# Elasticsearch
+
+ElasticSearch官网： [https://www.elastic.co/](https://www.elastic.co/)
+
+
+## 文档
+
+- Elasticsearch7.6中文文档 https://www.kancloud.cn/yiyanan/elasticsearch_7_6/1668540
+- Elasticsearch7.6中文文档 https://learnku.com/docs/elasticsearch73/7.3
+
+- [Elasticsearch: 权威指南(Elasticsearch 2.x 版本)](https://www.elastic.co/guide/cn/elasticsearch/guide/current/index.html)
+
+- [Elasticsearch-PHP](https://www.elastic.co/guide/cn/elasticsearch/php/current/index.html)
+
+- [ELASTIC 搜索开发实战-阅读地址](https://elastic-search-in-action.medcl.com/) 
+- [ELASTIC 搜索开发实战-github](https://github.com/medcl/book-elastic-search-in-action)
+
+https://github.com/medcl
+
+
+## 课程介绍
+
+课程地址： [【马士兵教育】2022版Elasticsearch教程入门到精通](https://www.bilibili.com/video/BV1LY4y167n5)
+
+PB级数据，近实时搜索
+
+DB-Engines数据库排名：[https://db-engines.com/en/ranking](https://db-engines.com/en/ranking)
+
+Elastic Stack
+- ElasticSearch 基于json的分布式搜索和分析引擎
+- Logstash 动态数据收集管道，生态丰富
+- Kibana 提供数据的可视化界面
+- Beats 轻量级的数据采集器
+
+课程中使用的版本 7.10
+
+## 目录
+
+[Elasticsearch 环境安装](blog/elasticsearch/install.md)
+
+[聚合查询 aggregation](blog/elasticsearch/aggregation.md)
+
diff --git a/blog/elasticsearch/install.md b/blog/elasticsearch/install.md
new file mode 100644
index 0000000000000000000000000000000000000000..1c3ad9cf44bf93ae87763fb7d51d9afb49869fea
--- /dev/null
+++ b/blog/elasticsearch/install.md
@@ -0,0 +1,186 @@
+# 环境安装
+
+课程中使用的版本 7.10(本例使用7.14)
+
+- 安装Java环境
+- 安装ElasticSearch
+- 安装Kibana
+- 安装ElasticSearch-Head插件
+
+## 1、安装Java环境
+
+兼容性查看
+[https://www.elastic.co/cn/support/matrix](https://www.elastic.co/cn/support/matrix)
+
+- JDK兼容性：JDK 1.8
+- 操作系统兼容性：CentOS7
+- Elastic技术栈兼容性
+
+
+### 1.1、Linux安装JDK
+
+```bash
+# 搜索jdk
+yum search jdk
+
+# 安装
+yum install -y java-1.8.0-openjdk.x86_64
+
+# 验证
+java -version
+openjdk version "1.8.0_332"
+OpenJDK Runtime Environment (build 1.8.0_332-b09)
+OpenJDK 64-Bit Server VM (build 25.332-b09, mixed mode)
+```
+
+### 1.2、MacOS安装JDK
+
+```bash
+$ java -version
+java version "1.8.0_251"
+Java(TM) SE Runtime Environment (build 1.8.0_251-b08)
+Java HotSpot(TM) 64-Bit Server VM (build 25.251-b08, mixed mode)
+```
+
+## 2、安装ElasticSearch
+
+### 2.1、下载地址
+
+- 官网下载：[https://www.elastic.co/cn/downloads/past-releases#elasticsearch](https://www.elastic.co/cn/downloads/past-releases#elasticsearch)
+
+- elasticsearch中文社区：[https://elasticsearch.cn/download/](https://elasticsearch.cn/download/)
+
+- 华为云镜像：[https://repo.huaweicloud.com/elasticsearch/](https://repo.huaweicloud.com/elasticsearch/)
+
+### 2.2、下载解压
+
+```bash
+# elasticsearch
+wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.17.4-linux-x86_64.tar.gz
+
+# kibana
+wget https://artifacts.elastic.co/downloads/kibana/kibana-7.17.4-linux-x86_64.tar.gz
+
+# 解压
+tar -xvf elasticsearch-7.17.4-linux-x86_64.tar.gz
+```
+
+### 2.3、目录结构
+
+|目录名称  | 描述
+|- | -
+| bin |  可执行脚本文件
+| config | 配置文件
+|lib | 依赖库
+| data | 默认的数据存放目录，`生产环境必须修改`
+|logs| 默认的日志文件存放目录，`生产环境必须修改`
+| modules | 包含所有模块
+| plugins| 插件目录
+| jdk/jdk.app | version > 7.0,自带的java环境
+
+### 2.4、启动单节点服务
+
+```bash
+# 进入到命令所在目录
+cd elasticsearch-7.14.0\bin
+
+# 启动
+./elasticsearch
+
+# 后台启动
+./elasticsearch -d
+```
+
+| - | windows | Linux | MacOS
+| - | - | - | - | 
+| 命令行 | ./elasticsearch.bash | ./elasticsearch | ./elasticsearch
+| 图形界面 | 双击 elasticsearch.bash | - | 双击 elasticsearch 
+| shell | start elasticsearch.bash | - | open elasticsearch
+
+启动验证：http://localhost:9200
+
+### 2.5、启动多个节点
+
+1、本机单个项目启动多个节点
+
+```bash
+# 启动第一个节点 http://localhost:9200/
+./elasticsearch -E path.data=data1 -E path.logs=log1 -E node.name=node1 -E cluster.name=mycluster
+
+# 启动第二个节点 http://127.0.0.1:9201/
+./elasticsearch -E path.data=data2 -E path.logs=log2 -E node.name=node2 -E cluster.name=mycluster
+```
+
+2、本机多个项目启动多个节点
+
+MacOS
+```bash
+open node1/bin/elasticsearch
+open node2/bin/elasticsearch
+open node3/bin/elasticsearch
+```
+
+windows
+```bash
+start D:\node1\bin\elasticsearch.bat
+start D:\node2\bin\elasticsearch.bat
+start D:\node3\bin\elasticsearch.bat
+```
+
+## 3、安装Kibana
+## 4、安装ElasticSearch-Head插件
+
+## 5、不同编程语言的客户端
+
+https://www.elastic.co/guide/en/elasticsearch/client/index.html
+
+```bash
+# php > 7.1
+composer require "elasticsearch/elasticsearch" "~7.0"
+```
+
+文档：
+https://www.elastic.co/guide/en/elasticsearch/client/php-api/7.17/index.html
+
+
+## 配置Nginx代理转发
+
+```bash
+# kibana.conf
+server {
+    listen 8002;
+    server_name localhost;
+
+    location / {
+         # 设置 auth
+       auth_basic "login auth";
+       auth_basic_user_file /usr/local/nginx/.htpasswd;
+
+        proxy_pass http://127.0.0.1:5601;
+        proxy_set_header Host $host;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+  }
+}
+
+```
+
+```bash
+# elasticsearch.conf
+server {
+    listen 8001;
+    server_name localhost;
+
+    location / {
+        # 设置 auth
+       auth_basic "login auth";
+       auth_basic_user_file /usr/local/nginx/.htpasswd;
+
+        proxy_pass http://127.0.0.1:9200;
+        proxy_set_header Host $host;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    }
+}
+```
+
+https://www.bilibili.com/video/BV1LY4y167n5?p=3&spm_id_from=pageDriver
+
diff --git a/blog/php-mysql/index.md b/blog/php-mysql/index.md
index 7d704ecfa121863f5e0e74046dc8bf45e49a782b..bc2d905f22e6d8355af6081ef6f2e752c931233a 100644
--- a/blog/php-mysql/index.md
+++ b/blog/php-mysql/index.md
@@ -44,13 +44,13 @@
 
 21. [连接查询 join](blog/php-mysql/sql-join.md)
 
-[子查询 sub query](blog/php-mysql/sql-subquery.md)
+22. [子查询 sub query](blog/php-mysql/sql-subquery.md)
 
-[数据库备份与还原](blog/php-mysql/sql-bak.md)
+23. [数据库备份与还原](blog/php-mysql/sql-bak.md)
 
-[用户权限管理](blog/php-mysql/sql-power.md)
+24. [用户权限管理](blog/php-mysql/sql-power.md)
 
-[外键 foreing key](blog/php-mysql/sql-foreing-key.md)
+25. [外键 foreing key](blog/php-mysql/sql-foreing-key.md)
 
 [视图 view](blog/php-mysql/sql-view.md)
 
diff --git a/doc/elasticsearch.md b/doc/elasticsearch.md
deleted file mode 100644
index 57696dacd2c842269a2469e9eb819e315363da42..0000000000000000000000000000000000000000
--- a/doc/elasticsearch.md
+++ /dev/null
@@ -1,96 +0,0 @@
-
-elasticsearch下载地址
-
-- 官网下载：[https://www.elastic.co/cn/downloads/past-releases#elasticsearch](https://www.elastic.co/cn/downloads/past-releases#elasticsearch)
-
-- elasticsearch中文社区：[https://elasticsearch.cn/download/](https://elasticsearch.cn/download/)
-
-- 华为云镜像：[https://repo.huaweicloud.com/elasticsearch/](https://repo.huaweicloud.com/elasticsearch/)
-
-下载解压安装
-
-```bash
-# elasticsearch
-wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.17.4-linux-x86_64.tar.gz
-
-# kibana
-wget https://artifacts.elastic.co/downloads/kibana/kibana-7.17.4-linux-x86_64.tar.gz
-
-# 解压
-tar -xvf elasticsearch-7.17.4-linux-x86_64.tar.gz
-
-# 运行
-cd elasticsearch-7.17.4/bin
-./elasticsearch
-```
-
-安装JDK
-```bash
-# 搜索jdk
-yum search jdk
-
-# 安装
-yum install -y java-1.8.0-openjdk.x86_64
-
-# 验证
-java -version
-openjdk version "1.8.0_332"
-OpenJDK Runtime Environment (build 1.8.0_332-b09)
-OpenJDK 64-Bit Server VM (build 25.332-b09, mixed mode)
-```
-
-不同编程语言的客户端
-https://www.elastic.co/guide/en/elasticsearch/client/index.html
-
-```bash
-# php > 7.1
-composer require "elasticsearch/elasticsearch" "~7.0"
-```
-
-文档：
-https://www.elastic.co/guide/en/elasticsearch/client/php-api/7.17/index.html
-
-
-配置Nginx代理转发
-
-```bash
-# kibana.conf
-server {
-    listen 8002;
-    server_name localhost;
-
-    location / {
-         # 设置 auth
-       auth_basic "login auth";
-       auth_basic_user_file /usr/local/nginx/.htpasswd;
-
-        proxy_pass http://127.0.0.1:5601;
-        proxy_set_header Host $host;
-        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-  }
-}
-
-```
-
-```bash
-# elasticsearch.conf
-server {
-    listen 8001;
-    server_name localhost;
-
-    location / {
-        # 设置 auth
-       auth_basic "login auth";
-       auth_basic_user_file /usr/local/nginx/.htpasswd;
-
-        proxy_pass http://127.0.0.1:9200;
-        proxy_set_header Host $host;
-        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-    }
-}
-```
-
-Elasticsearch7.6中文文档
-
-- https://www.kancloud.cn/yiyanan/elasticsearch_7_6/1668540
-- https://learnku.com/docs/elasticsearch73/7.3
\ No newline at end of file
diff --git a/doc/mysql.md b/doc/mysql.md
index 37761e6e76a039d67603d45a96b5fa267bcc72a7..59b3e69697311cbf159f43b61f507ba6df418498 100644
--- a/doc/mysql.md
+++ b/doc/mysql.md
@@ -1,6 +1,8 @@
 # MySQL
 
 
+[笔记：PHP 零基础入门到精通教程（P2 mysql 数据库 5 天）](/blog/php-mysql/index.md)
+
 [MySQL进阶笔记](blog/mysq-advance/index.md)