backup

df/磁盘处理记录.md

@@ -15,8 +15,6 @@ mount /dev/sda2 old
 strace mount /dev/sda2 old
 ```
 
-
-
 将磁盘挂载到系统，写入配置文件避免每次都点击文件加载。
 
 查看挂载

dns/CoreDNS.md

@@ -1,4 +1,5 @@
 ## 配置
+
 ```shell
 cat >  coredns.yaml << "EOF"
 apiVersion: v1
@@ -199,10 +200,12 @@ spec:
   - name: metrics
     port: 9153
     protocol: TCP
- 
+
 EOF
 ```
+
 ## 启动
+
 ```shell
 kubectl apply -f coredns.yaml
 ```

dns/bind.md

@@ -21,5 +21,4 @@ vi /etc/named.rfc1912.zones
 
 vi hy.com.zone
 systemctl start named
-
 ```

docker/docker-push.md

@@ -1,5 +1,5 @@
-
 # push镜像使用http
+
 ```
 # 修改配置文件
 vi /etc/docker/daemon.json
@@ -28,4 +28,3 @@ docker tag 4d69ba36298c 172.21.13.108:80/platform-v3/jeecg-boot-system:3.1.0922-
 # 推送远程仓库
 docker push 172.21.13.108:80/platform-v3/jeecg-boot-system:3.1.0922-mdm
 ```
-

docker/指令记录.md

@@ -1,5 +1,16 @@
-```shell
+```javascript
 # 设置容器总是重启
 docker update --restart=always f854fe55ed76
-```
 
+# 查看网络​
+docker network ls
+# 创建桥接网络​task-manager
+docker network create --driver bridge task-manager
+# 将现有的容器​8a74f2c64cdc连接到网络task-manager
+docker network connect task-manager 8a74f2c64cdc
+# 查看网络task-manager​
+docker network inspect task-manager
+# 运行容器时使用网络task-manager
+docker run -d -p 8090:8090 --network task-manager  --restart unless-stopped -v ./hosts:/etc/hosts --name task-manager-server task-manager-server 
+                                      
+```

ftp/ftp.md

@@ -0,0 +1,11 @@
+配置文件地址
+
+cat /etc/vsftpd.conf
+
+日志地址
+
+sudo cat /var/log/vsftpd.log
+
+重启服务
+
+sudo systemctl restart vsftpd

sources.list

@@ -0,0 +1,30 @@
+deb https://mirrors.ustc.edu.cn/ubuntu-releases/ jammy bionic main restricted universe multiverse
+deb https://mirrors.ustc.edu.cn/ubuntu-releases/ jammy bionic-security main restricted universe multiverse
+deb https://mirrors.ustc.edu.cn/ubuntu-releases/ jammy bionic-updates main restricted universe multiverse
+deb https://mirrors.ustc.edu.cn/ubuntu-releases/ jammy bionic-proposed main restricted universe multiverse
+deb https://mirrors.ustc.edu.cn/ubuntu-releases/ jammy bionic-backports main restricted universe multiverse
+deb-src https://mirrors.ustc.edu.cn/ubuntu-releases/ jammy bionic main restricted universe multiverse
+deb-src https://mirrors.ustc.edu.cn/ubuntu-releases/ jammy bionic-security main restricted universe multiverse
+deb-src https://mirrors.ustc.edu.cn/ubuntu-releases/ jammy bionic-updates main restricted universe multiverse
+deb-src https://mirrors.ustc.edu.cn/ubuntu-releases/ jammy bionic-proposed main restricted universe multiverse
+deb-src https://mirrors.ustc.edu.cn/ubuntu-releases/ jammy bionic-backports main restricted universe multiverse
+
+deb http://mirrors.aliyun.com/ubuntu/ jammy bionic main restricted universe multiverse
+deb http://mirrors.aliyun.com/ubuntu/ jammy bionic-security main restricted universe multiverse
+deb http://mirrors.aliyun.com/ubuntu/ jammy bionic-updates main restricted universe multiverse
+deb http://mirrors.aliyun.com/ubuntu/ jammy bionic-proposed main restricted universe multiverse
+deb http://mirrors.aliyun.com/ubuntu/ jammy bionic-backports main restricted universe multiverse
+deb-src http://mirrors.aliyun.com/ubuntu/ jammy bionic main restricted universe multiverse
+deb-src http://mirrors.aliyun.com/ubuntu/ jammy bionic-security main restricted universe multiverse
+deb-src http://mirrors.aliyun.com/ubuntu/ jammy bionic-updates main restricted universe multiverse
+deb-src http://mirrors.aliyun.com/ubuntu/ jammy bionic-proposed main restricted universe multiverse
+deb-src http://mirrors.aliyun.com/ubuntu/ jammy bionic-backports main restricted universe multiverse
+
+deb http://cn.archive.ubuntu.com/ubuntu/ jammy xenial main restricted universe multiverse
+deb http://cn.archive.ubuntu.com/ubuntu/ jammy xenial-security main restricted universe multiverse
+deb http://cn.archive.ubuntu.com/ubuntu/ jammy xenial-updates main restricted universe multiverse
+deb http://cn.archive.ubuntu.com/ubuntu/ jammy xenial-backports main restricted universe multiverse
+deb-src http://cn.archive.ubuntu.com/ubuntu/ jammy xenial main restricted universe multiverse
+deb-src http://cn.archive.ubuntu.com/ubuntu/ jammy xenial-security main restricted universe multiverse
+deb-src http://cn.archive.ubuntu.com/ubuntu/ jammy xenial-updates main restricted universe multiverse
+deb-src http://cn.archive.ubuntu.com/ubuntu/ jammy xenial-backports main restricted universe multiverse

数据库/mongodb.md

@@ -0,0 +1,56 @@
+# 离线安装
+https://www.mongodb.com/try/download/community
+## 下载
+```shell
+wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-ubuntu1804-4.2.25.tgz
+```
+## 解压
+```shell
+tar -zxvf mongodb-linux-x86_64-ubuntu1804-4.2.25.tgz
+```
+## 配置环境变量
+```shell
+# mongodb-install-directory 换为解压位置
+# sudo cp <mongodb-install-directory>/bin/* /usr/local/bin/
+sudo cp mongodb-linux-x86_64-ubuntu1804-4.2.25/bin/* /usr/local/bin/
+```
+
+## 启动
+```shell
+mongod --dbpath /var/lib/mongo --logpath /var/log/mongodb/mongod.log --fork
+# 报错
+mongod: error while loading shared libraries: libssl.so.1.1: cannot open shared object file: No such file or directory
+# 全局查找文件
+find / -name 'libssl.so.1.1'
+# 复制到使用位置
+cp /snap/core18/2812/usr/lib/x86_64-linux-gnu/libssl.so.1.1 /usr/lib/libssl.so.1.1
+tail -f  /var/log/mongodb/mongod.log
+waiting for connections on port 27017
+```
+
+
+
+```
+# 查看数据库
+show dbs;
+# 创建切换数据库
+use testdb;
+# 先创建集合，类似数据库中的表
+db.createCollection("testtab")   
+# 查看集合表  
+show tables
+# 插入数据
+db.testdb.insertOne({"name":"菜鸟教程"})
+
+db.testtab.insert({title: 'MongoDB 教程', 
+    description: 'MongoDB 是一个 Nosql 数据库',
+    by: '教程',
+    url: 'http://www.baidu.com',
+    tags: ['mongodb', 'database', 'NoSQL'],
+    likes: 100
+})
+# 查看信息
+db.testtab.find()
+# 修改
+db.testtab.update({'title':'MongoDB 教程'},{$set:{'title':'MongoDB MongoDB'}})
+```

数据库/mysql/MVCC.md

@@ -0,0 +1,27 @@
+# LBCC
+
+Lock Base Concurrency Control 基于锁的并发控制。
+
+# MVCC
+
+Multi-Version Concurrency Control，即多版本并发控制
+
+生成快照read view
+
+隐藏字段，redolog
+
+# 处理幻读
+
+在一个事物中同时出现快照读，当前读和数据插入（另一个事物）会出现事物。
+
+## 串行化
+
+## 间隙锁
+
+select * from user where age = 18 for update;
+
+show engine innodb status\G;(需要开启参数innodb_status_output和innodb_status_output_lock)
+
+# 锁根据索引处理
+
+记录锁(行锁)，间隙锁，临界锁

数据库/mysql/常用.md

@@ -2,6 +2,20 @@
 -- 查找参数
 SHOW GLOBAL VARIABLES;
 SHOW GLOBAL VARIABLES like 'offline_mode';
+-- 创建用户 允许任何ip连接
+CREATE USER 'closeToU8'@'%' IDENTIFIED BY 'frpPurchase8*';
+-- 授予权限
+GRANT SELECT, update ON frp_xiongbang.f_api_address TO 'closeToU8'@'%';
+FLUSH PRIVILEGES;
 
+select * from f_api_address where  remarks like '%采购%'
+select * from f_api_address where id in ('11016','11006') and  remarks like '%采购%'
+update f_api_address set delete_flag = 1 where  id in ('11016','11006');
+
+select * from f_api_address where id in ('11016','11006');
+
+update f_api_address set delete_flag = 0 where  id in ('11016','11006');
+
+select * from f_api_address where id in ('11016','11006');
 ```
 

数据库/mysql/数据库异常.md

@@ -0,0 +1,5 @@
+## 连接不够
+
+
+
+## 连接超时

数据库/mysql/索引.md

@@ -0,0 +1,33 @@
+# Innodb
+
+存储文件有2个，表结构文件和索引数据文件，索引和数据在一个文件中，减少一次io。
+
+# MySim
+
+存储需要3个文件，表结构文件，索引文件和数据文件，先比Innodb多一次io。
+
+# 二叉树
+
+1. 二叉树
+2. BST树，Binary Search Tree，二叉搜索树
+3. AVL树
+4. 红黑树
+
+# 多叉树
+
+B-树，数据存储在节点上
+
+B+树，数据存贮在最终叶子节点上
+
+相同树高下B+数可以搜索更多数据。
+
+一般情况下3-4层的B+数可以支持千万级别的数据量。
+
+对于频繁更新的字段，最好不要添加索引。
+
+数据迁移比较慢，可以先删除索引，数据迁移完成后，重新构建索引。
+
+跟数据绑定的索引称为聚簇索引，没有跟数据绑定的索引称为非聚簇索引。
+
+数据只存储一份，一个索引一个树，其他索引的叶子节点指向聚簇索引。
+

数据库/mysql/线程占用.md

@@ -19,11 +19,20 @@ select * from information_schema.innodb_trx;
 kill trx_mysql_thread_id;
 select trx_mysql_thread_id from information_schema.innodb_trx where trx_state ='LOCK WAIT ';
 -- 查看所有进程
+SELECT * FROM information_schema.processlist
 show full processlist;
 ```
 
+```sql
+-- sql 执行时间
+show global variables where Variable_name = 'max_execution_time'；
+SET GLOBAL MAX_EXECUTION_TIME=1000;
+SET SESSION MAX_EXECUTION_TIME=1000;
+SELECT max_execution_time=1000 SLEEP(10), a.* from test a;
+```
 
 
+select * from information_schema.`COLUMNS` where TABLE_SCHEMA='platform3_dev' and COLLATION_NAME='utf8mb4_unicode_ci' and TABLE_NAME like 'bfm_ems_equipment_maintenance%' and COLUMN_NAME LIKE '%id%' limit 1000;
 
 
 连接超时

数据库/mysql安装.md

@@ -2,13 +2,13 @@
 
 ## 下载地址
 
-https://dev.mysql.com/downloads/mysql/
+[https://dev.mysql.com/downloads/mysql/](https://dev.mysql.com/downloads/mysql/)
 
 ## 下载版本
 
 Linux Generic  linux通用版本
 
-```sh
+```javascript
 # 查看glibc版本
 [root@hy-node6 ~]# ldd --version
 ldd (GNU libc) 2.17
@@ -27,9 +27,9 @@ wget https://dev.mysql.com/get/Downloads/MySQL-8.1/mysql-8.1.0-linux-glibc2.17-x
 
 ## 安装参考地址
 
-https://dev.mysql.com/doc/refman/8.1/en/binary-installation.html
+[https://dev.mysql.com/doc/refman/8.1/en/binary-installation.html](https://dev.mysql.com/doc/refman/8.1/en/binary-installation.html)
 
-```sh
+```javascript
 # 添加用户组mysql  查看用户组  cat /etc/group
 groupadd mysql
 # 添加用户 hy-mysql并添加到用户组mysql  查看用户 cat /etc/passw
@@ -38,6 +38,7 @@ useradd -r -g mysql -s /bin/false hy-mysql
 tar xvf mysql-8.1.0-linux-glibc2.17-x86_64.tar
 # 解压
 xz -dc mysql-8.1.0-linux-glibc2.17-x86_64.tar.xz | tar x
+chmod 777 mysqld
 # 设置环境变量
 export PATH=$PATH:/software/mysql/mysql-8.1.0-linux-glibc2.17-x86_64/bin
 # 使环境变量生效
@@ -48,11 +49,11 @@ source /etc/profile
 
 ## 参考地址
 
-https://dev.mysql.com/doc/refman/8.1/en/postinstallation.html
+[https://dev.mysql.com/doc/refman/8.1/en/postinstallation.html](https://dev.mysql.com/doc/refman/8.1/en/postinstallation.html)
 
 ## 配置文件地址
 
-```sh
+```javascript
 # 备份配置文件
 cp my.cnf my.cnf.backup
 # 默认配置文件，不建议修改建议使用默认
@@ -67,7 +68,7 @@ basedir=/software/mysql/basedir
 socket=/software/mysql/socket/mysql.sock
 ```
 
-```
+```javascript
 # 设置地址授权,用于配置文件地址路径
 [root@hy-node6 mysql-8.1.0-linux-glibc2.17-x86_64]# pwd
 /software/mysql
@@ -87,9 +88,9 @@ socket=/software/mysql/socket/mysql.sock
 
 ## 使用systemctl启动
 
-https://dev.mysql.com/doc/mysql-secure-deployment-guide/8.0/en/secure-deployment-post-install.html#secure-deployment-startup-options
+[https://dev.mysql.com/doc/mysql-secure-deployment-guide/8.0/en/secure-deployment-post-install.html#secure-deployment-startup-options](https://dev.mysql.com/doc/mysql-secure-deployment-guide/8.0/en/secure-deployment-post-install.html#secure-deployment-startup-options)
 
-```
+```javascript
 cd /usr/lib/systemd/system
 touch mysqld.service
 chmod 644 mysqld.service
@@ -97,7 +98,7 @@ chmod 644 mysqld.service
 
 写入文件
 
-```
+```javascript
 [Unit]
 Description=MySQL Server
 Documentation=man:mysqld(8)
@@ -139,7 +140,7 @@ PrivateTmp=false
 
 开始设置
 
-```
+```javascript
 systemctl enable mysqld.service
 systemctl start mysqld
 systemctl status mysqld
@@ -150,7 +151,7 @@ systemctl status mysqld
 ```sql
 mysql -u root -p
 # 修改密码
-ALTER USER 'root'@'localhost' IDENTIFIED BY '123456';
+ALTER USER 'root'@'localhost' IDENTIFIED BY '123456'; -- Sxh910911!
 # 设置远程连接
 CREATE USER 'root'@'127.0.0.1' IDENTIFIED BY '123456';
 CREATE USER 'root'@'::1' IDENTIFIED BY '123456';
@@ -161,8 +162,6 @@ GRANT ALL ON *.* TO 'root'@'%';
 flush privileges;
 ```
 
-
-
 # 遇到问题
 
 ## 一
@@ -184,7 +183,7 @@ ln -s  /software/mysql/socket/mysql.sock /tmp/mysql.sock
 
 修改配置文件/etc/my.conf 添加保证client和mysqld中socket相同
 
-```
+```javascript
 [client]
 port=3306
 socket=/software/mysql/socket/mysql.sock
@@ -192,15 +191,14 @@ socket=/software/mysql/socket/mysql.sock
 
 # 多实例启动
 
-https://dev.mysql.com/doc/refman/8.1/en/using-systemd.html
+[https://dev.mysql.com/doc/refman/8.1/en/using-systemd.html](https://dev.mysql.com/doc/refman/8.1/en/using-systemd.html)
 
 # 从机安装
 
 复制安装包
 
-```
+```javascript
 scp mysql-8.1.0-linux-glibc2.17-x86_64.tar.xz root@192.168.1.120:/software/mysql
 
 root@localhost: %mfSO2t==tkF
-```
+```
-