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source/_posts/Linux.md

@@ -596,8 +596,11 @@ cd mysql_install
 # 下载安装包
 wget https://cdn.mysql.com/archives/mysql-5.7/mysql-5.7.41-1.el7.x86_64.rpm-bundle.tar
 tar -xvf mysql-5.7.41-1.el7.x86_64.rpm-bundle.tar
+
 rpm -ivh mysql-community-common-5.7.41-1.el7.x86_64.rpm
+
 rpm -ivh mysql-community-libs-5.7.41-1.el7.x86_64.rpm
+
 rpm -ivh mysql-community-libs-compat-5.7.41-1.el7.x86_64.rpm
 # 如果出现以下错误
 error: Failed dependencies:
@@ -605,31 +608,40 @@ error: Failed dependencies:
         libcrypto.so.10(libcrypto.so.10)(64bit) is needed by mysql-community-libs-compat-5.7.41-1.el7.x86_64
         libssl.so.10()(64bit) is needed by mysql-community-libs-compat-5.7.41-1.el7.x86_64
         libssl.so.10(libssl.so.10)(64bit) is needed by mysql-community-libs-compat-5.7.41-1.el7.x86_64
+# 执行
 dnf install	-y https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/compat-openssl10-1.0.2o-4.el8_6.x86_64.rpm
+
 rpm -ivh mysql-community-devel-5.7.41-1.el7.x86_64.rpm
 # 如果出现以下错误
 error: Failed dependencies:
         /usr/bin/pkg-config is needed by mysql-community-devel-5.7.41-1.el7.x86_64
+# 执行
 dnf install openssl-devel -y
+
 rpm -ivh mysql-community-client-5.7.41-1.el7.x86_64.rpm
 # 如果出现以下错误
 错误：依赖检测失败：
         libncurses.so.5()(64bit) 被 mysql-community-client-5.7.41-1.el7.x86_64 需要
         libtinfo.so.5()(64bit) 被 mysql-community-client-5.7.41-1.el7.x86_64 需要
+# 执行
 dnf install libncurses* -y
 dnf install epel-release -y
 dnf install ncurses-compat-libs -y
-# 再次执行 rpm -ivh mysql-community-client-5.7.41-1.el7.x86_64.rpm
+
 rpm -ivh mysql-community-server-5.7.41-1.el7.x86_64.rpm
 # 如果出现以下提示
 /usr/lib/tmpfiles.d/mysql.conf:23: Line references path below legacy directory /var/run/, updating /var/run/mysqld → /run/mysqld; please update the tmpfiles.d/ drop-in file accordingly.
+# 执行
 vim /usr/lib/tmpfiles.d/mysql.conf
 # 将/var/run/mysqld 改为 /run/mysqld
+
 # 如果出现以下提示
 error: Failed dependencies:
         libcrypt.so.1()(64bit) is needed by mysql-community-server-5.7.41-1.el7.x86_64
         libcrypt.so.1(GLIBC_2.2.5)(64bit) is needed by mysql-community-server-5.7.41-1.el7.x86_64
+# 执行
 dnf install -y libxcrypt-compat
+
 # 如果出现以下提示
 error: Failed dependencies:
         /usr/bin/perl is needed by mysql-community-server-5.7.41-1.el7.x86_64
@@ -639,8 +651,9 @@ dnf install -y perl.x86_64
 # 如果出现以下提示
 error: Failed dependencies:
         net-tools is needed by mysql-community-server-5.7.41-1.el7.x86_64
+# 执行
 dnf install net-tools -y
-# 再次执行 rpm -ivh mysql-community-server-5.7.41-1.el7.x86_64.rpm
+
 rpm -ivh mysql-community-embedded-compat-5.7.41-1.el7.x86_64.rpm
 
 ```
@@ -775,6 +788,108 @@ firewall-cmd --zone=public --add-port=3306/tcp --permanent
 
 ```
 
+## 查看硬盘空间
+
+```shell
+# 统计磁盘整体情况，包括磁盘大小，已使用，可用
+df -lh
+# 查看根目录下文件夹大小
+du -sh /*
+```
+
+## 扩容
+
+### LVM
+
+Orale VirtualBox
+
+![image-20240130093530200](Linux/image-20240130093530200.png)
+
+需要选择最后一个，因为前几个是之前的备份快照
+
+![image-20240130093629718](Linux/image-20240130093629718.png)
+
+分配大小即可，只能增加不能缩小
+
+查看现有分区大小
+
+```shell
+df -Th
+```
+
+![image-20240130093817210](Linux/image-20240130093817210.png)
+
+查看扩容后磁盘大小
+
+```shell
+lsblk
+```
+
+![image-20240130093857754](Linux/image-20240130093857754.png)
+
+创建分区
+
+```shell
+fdisk /dev/sda
+```
+
+![image-20240130093939297](Linux/image-20240130093939297.png)
+
+![image-20240130094105250](Linux/image-20240130094105250.png)
+
+刷新分区并创建物理卷
+
+```shell
+partprobe /dev/sda
+pvcreate /dev/sda4
+```
+
+![image-20240130094218593](Linux/image-20240130094218593.png)
+
+查看卷组名称，以及卷组使用情况
+
+```shell
+vgdisplay
+```
+
+![image-20240130094244545](Linux/image-20240130094244545.png)
+
+将物理卷扩展到卷组
+
+```shell
+vgextend rl /dev/sda4
+```
+
+![image-20240130094253931](Linux/image-20240130094253931.png)
+
+查看当前逻辑卷的空间状态
+
+```shell
+lvdisplay
+```
+
+![image-20240130094329028](Linux/image-20240130094329028.png)
+
+将卷组中的空闲空间扩展到根分区逻辑卷
+
+```shell
+lvextend -l +100%FREE /dev/rl/root
+```
+
+![image-20240130094418379](Linux/image-20240130094418379.png)
+
+刷新根分区
+
+```shell
+xfs_growfs /dev/rl/root
+```
+
+![image-20240130094442884](Linux/image-20240130094442884.png)
+
+扩容成功
+
+![image-20240130094540550](Linux/image-20240130094540550.png)
+
 ## 分配Swap
 
 查看分区大小
@@ -1083,15 +1198,6 @@ dnf install nodejs -y
 
 
 
-## 查看硬盘空间
-
-```shell
-# 统计磁盘整体情况，包括磁盘大小，已使用，可用
-df -lh
-# 查看根目录下文件夹大小
-du -sh /*
-```
-
 ## 安装宝塔面板
 
 ## 安装 Neofetch
@@ -1334,3 +1440,50 @@ type=rpm-md
 dnf install --enablerepo=elasticsearch elasticsearch -y
 ```
 
+## 安装 Rsync
+
+```shell
+dnf install rsync -y
+```
+
+### 配置
+
+```shell
+vim /etc/rsyncd.conf
+
+# /etc/rsyncd: configuration file for rsync daemon mode
+
+# See rsyncd.conf man page for more options.
+
+# configuration example:
+
+uid = root
+gid = root
+ignore errors
+hosts allow = 10.0.3.0/24
+secrets file = /etc/rsyncd.secrets
+# use chroot = yes
+# max connections = 4
+# pid file = /var/run/rsyncd.pid
+# exclude = lost+found/
+# transfer logging = yes
+# timeout = 900
+# ignore nonreadable = yes
+# dont compress   = *.gz *.tgz *.zip *.z *.Z *.rpm *.deb *.bz2
+
+# [ftp]
+#        path = /home/ftp
+#        comment = ftp export area
+# 同步模块名称
+[syncwspswwwroot]
+# 服务器同步的路径
+path = /root/wwwroot
+log file = /var/log/rsync.log
+# 只读模式 不允许客户端向同步路径进行同步上传文件
+read only = yes
+
+[mysql_bakup]
+path = /root/mysql_bakup
+read only = yes
+```
+

source/_posts/MySQL.md

@@ -68,7 +68,7 @@ mysqldump -uroot -p -B test > test.sql
 
    - MySQL 5.6、5.7，以下载并安装Percona XtraBackup 2.4.9为例
      ```shell
-     wget https://downloads.percona.com/downloads/Percona-XtraBackup-2.4/Percona-XtraBackup-2.4.9/binary/redhat/7/x86_64/percona-xtrabackup-24-2.4.9-1.el9.x86_64.rpm
+     wget https://downloads.percona.com/downloads/Percona-XtraBackup-2.4/Percona-XtraBackup-2.4.29/binary/redhat/9/x86_64/percona-xtrabackup-24-2.4.29-1.el9.x86_64.rpm
      
      rpm -ivh percona-xtrabackup-24-2.4.9-1.el7.x86_64.rpm --nodeps --force
      ```
@@ -80,9 +80,136 @@ mysqldump -uroot -p -B test > test.sql
      rpm -ivh percona-xtrabackup-80-8.0.32-26.1.el7.x86_64.rpm --nodeps --force
      ```
 
+## 备份
+
+#### 全量备份
+
+```shell
+innobackupex --user=root --password=123456 --host=127.0.0.1 ~/mysql_bakup/
+
+#语法解释说明：
+#--user=root 指定备份用户
+#--password=123456  指定备份用户密码
+#--host　　指定主机
+#~/mysql_bakup/　　指定备份目录
+```
+
+执行命令后。可看到备份时间的文件夹
+
+![image-20240130140632864](MySQL/image-20240130140632864.png)
+
+文件夹内容如下
+
+![image-20240130140723465](MySQL/image-20240130140723465.png)
+
+#### 增量备份
+
+```shell
+innobackupex --user=root --password=123456 --host=127.0.0.1 --incremental ~/mysql_bakup/ --incremental-basedir=~/mysql_bakup/2024-01-30_14-03-42/
+```
+
+![image-20240130151257100](MySQL/image-20240130151257100.png)
+
+增量备份需要使用参数--incremental指定需要备份到哪个目录，使用incremental-dir指定全备目录
+
+查看备份数据
+
+![image-20240130172206916](MySQL/image-20240130172206916.png)
+
 ## 恢复
 
+#### 全量备份恢复
 
+```shell
+# 停止目标服务器上的mysql
+systemctl stop mysqld
+```
+
+![image-20240130142057208](MySQL/image-20240130142057208.png)
+
+同步服务器上的备份文件至本地
+
+```shell
+# 同步服务器上的备份文件夹至本地
+rsync -av root@10.0.3.3::mysql_bakup ~/mysql_bakup
+```
+
+![image-20240130142150299](MySQL/image-20240130142150299.png)
+
+创建本地数据目录备份
+
+```shell
+cp -r /var/lib/mysql /var/lib/mysqlbakup
+```
+
+合并数据日志，使数据文件处于一致性的状态
+
+```shell
+innobackupex --apply-log ~/mysql_bakup/2024-01-30_14-03-42/ 
+```
+
+![image-20240130142410127](MySQL/image-20240130142410127.png)
+
+删除数据目录
+
+```shell
+rm -rf /var/lib/mysql
+```
+
+进行数据恢复
+
+```shell
+innobackupex --copy-back 2024-01-30_14-03-42/
+```
+
+![image-20240130142551097](MySQL/image-20240130142551097.png)
+
+赋予权限
+
+```shell
+chown mysql:mysql /var/lib/mysql -R
+```
+
+临时关闭SELinux
+
+```she
+setenforce 0
+```
+
+永久关闭SELinux
+
+#### 增量备份恢复
+
+```shell
+# 停止目标服务器上的mysql
+systemctl stop mysqld
+```
+
+![image-20240130142057208](MySQL/image-20240130142057208.png)
+
+删除数据目录
+
+```shell
+rm -rf /var/lib/mysql
+```
+
+合并全备数据目录，确保数据的一致性
+
+```shell
+innobackupex --apply-log --redo-only ~/mysql_bakup/2024-01-30_14-03-42/
+```
+
+将增量备份数据合并到全备数据目录当中
+
+```shell
+innobackupex --apply-log --redo-only ~/mysql_bakup/2024-01-30_14-03-42/ --incremental-dir=~/mysql_bakup/2024-01-30_15-12-28/
+```
+
+恢复数据
+
+```shell
+innobackupex --copy-back ~/mysql_bakup/2024-01-30_14-03-42/
+```