安裝PHP以及搭建博客（三）服務遷移分離
LNMP服務環境都在一臺機器上（IP:125），現在要做到把mysql服務遷移出來（IP:129），把圖片文件遷移到NFS服務器上（IP：130）
mysql服務器（129）
安裝mysql配置過程(下載略)
useradd mysql -s /sbin/nologin -M mkdir -p /application tar xf mysql-5.5.59-linux-glibc2.12-x86_64.tar.gz mv mysql-5.5.59-linux-glibc2.12-x86_64 /application/mysql-5.5.59 ln -s /application/mysql-5.5.59/ /application/mysql chown -R mysql.mysql /application/mysql cd /application/mysql ./scripts/mysql_install_db --user=mysql --basedir=/application/mysql --datadir=/application/mysql/data/ cp ./support-files/my-small.cnf /etc/my.cnf cp support-files/mysql.server /etc/init.d/mysqld sed -i ‘s#/usr/local/mysql#/application/mysql#g‘ /etc/my.cnf /etc/init.d/mysqld /application/mysql/bin/mysqld_safe
/etc/init.d/mysqld start
lsof -i:3306
cp -a /application/mysql/bin/* /usr/local/sbin/
mysqladmin -uroot password 123456
LNMP環境導出mysql中的數據（IP：125）
mysqldump -uroot -p123456 -B wordpress |gzip>bak.sql.gz scp bak.sql.gz root@192.168.70.129:/tmp
導入到mysql服務器中（129）
gzip -d bak.sql.gz mysql -uroot -p123456 </tmp/bak.sql
登錄數據庫查看
mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | test | | wordpress | +--------------------+ 5 rows in set (0.00 sec) 數據庫授讓LNMP可以訪問 grant all on wordpress.* to wordpress@‘192.168.70.%‘ identified by ‘123456‘; flush privileges;
停掉LNMP中的數據庫（125）
/etc/init.d/mysqld stop
修改wordpress 文件（125）
cd /application/nginx/html/blog/ vim wp-config.php
/** MySQL主機 */
define(‘DB_HOST‘, ‘192.168.70.129‘);
這就可以訪問了
blog.daxian.com
測試blog中的mysql
發表一篇博文
查看129的數據庫
select * from daxian_posts\G *************************** 8. row *************************** ID: 8 post_author: 1 post_date: 2018-02-07 16:00:38 post_date_gmt: 0000-00-00 00:00:00 post_content: post_title: 123456daxian
成功
==========================圖片分離到NFS=================
圖片位置在於
tree /application/nginx/html/blog/wp-content/uploads/ wp-content/uploads/ └── 2018 └── 02 ├── m2w500hq85lt_x_large_EQqD_500c000026851262-100x100.jpg ├── m2w500hq85lt_x_large_EQqD_500c000026851262-150x150.jpg ├── m2w500hq85lt_x_large_EQqD_500c000026851262-300x194.jpg ├── m2w500hq85lt_x_large_EQqD_500c000026851262.jpg ├── m2w500hq85lt_x_large_vIqg_741d00001d1f1262-100x100.jpg ├── m2w500hq85lt_x_large_vIqg_741d00001d1f1262-150x150.jpg ├── m2w500hq85lt_x_large_vIqg_741d00001d1f1262-300x216.jpg └── m2w500hq85lt_x_large_vIqg_741d00001d1f1262.jpg
在NFS服務器上創建用戶
useradd -u 506 www （查看125上www用戶uid是多少）
安裝NFS（客戶端跟服務端都要安裝））
yum install nfs-utils rpcbind -y
NFS上啟動
/etc/init.d/rpcbind start /etc/init.d/nfs start
rpcinfo -p localhost
mkdir /data/blog -p
chown -R www.www /data
vim /etc/exports
/data 192.168.70.0/24(rw,sync,all_squash,anonuid=506,anongid=506)
重啟NFS
/etc/init.d/nfs reload
showmount -e 192.168.70.130
客戶端啟動（125）
/etc/init.d/rpcbind start
showmount -e 192.168.70.130
Export list for 192.168.70.130:
/data 192.168.70.0/24
將原有數據移動走（125
cd /application/nginx/html/blog/wp-content/uploads mv 2018 /tmp
掛載
mount -t nfs 192.168.70.130:/data/nfs-blog /application/nginx/html/blog/wp-content/uploads/
將數據移動回來
cp -a /tmp/2018/ .
完成MYSQL分離以及圖片分離
可以再NFS上查看了
pwd /data/nfs-blog/2018/02
ls
m2w500hq85lt_x_large_EQqD_500c000026851262-100x100.jpg
m2w500hq85lt_x_large_EQqD_500c000026851262-150x150.jpg
m2w500hq85lt_x_large_EQqD_500c000026851262-300x194.jpg
m2w500hq85lt_x_large_EQqD_500c000026851262.jpg
m2w500hq85lt_x_large_vIqg_741d00001d1f1262-100x100.jpg
m2w500hq85lt_x_large_vIqg_741d00001d1f1262-1-100x100.jpg
m2w500hq85lt_x_large_vIqg_741d00001d1f1262-1-150x150.jpg
m2w500hq85lt_x_large_vIqg_741d00001d1f1262-1-300x216.jpg
m2w500hq85lt_x_large_vIqg_741d00001d1f1262-150x150.jpg
m2w500hq85lt_x_large_vIqg_741d00001d1f1262-1.jpg
m2w500hq85lt_x_large_vIqg_741d00001d1f1262-300x216.jpg
m2w500hq85lt_x_large_vIqg_741d00001d1f1262.jpg
安裝PHP以及搭建博客（三）服務遷移分離