8.22
1.设置主从从mysql57服务器
1）配置主数据库
[root@msater_5 ~]# systemctl stop filewalld
[root@msater_5 ~]# setenforce 0
[root@msater_5 ~]# systemctl disable filewalld
[root@msater_5 ~]# ls
anaconda-ks.cfg mysql-5.7.44-linux-glibc2.12-x86_64.tar.gz
[root@msater_5 ~]# tar -xf mysql-5.7.44-linux-glibc2.12-x86_64.tar.gz
[root@msater_5 ~]# cp -r mysql-5.7.44-linux-glibc2.12-x86_64 /usr/local/mysql
[root@msater_5 ~]# rm -rf /etc/my.cnf
[root@msater_5 ~]# mkdir /usr/local/mysql/mysql-files
[root@msater_5 ~]# useradd -r -s /sbin/nologin mysql
[root@msater_5 ~]# chown mysql:mysql /usr/local/mysql/mysql-files
[root@msater_5 ~]# chown 750 /usr/local/mysql/mysql-files
[root@msater_5 ~]# /usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql
2024-08-21T09:39:16.036321Z 0 [Warning] CA certi2024-08-21T09:39:16.384066Z 1 [Note] A temporary password is generated for root@localhost: RV3DtuxCi;A-
[root@msater_5 ~]# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql57
[root@msater_5 ~]# vim /usr/local/mysql/my.cnf
[mysqld]
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
socket=/tmp/mysql.sock
port=3306
log-error=/usr/local/mysql/data/db01-master.err
log-bin=/usr/local/mysql/data/binlog
server-id=10
character_set_server=utf8mb4
[root@msater_5 ~]# service mysql57 start
[root@msater_5 ~]# /usr/local/mysql/bin/mysql -p
Enter password:
mysql> alter user 'root'@'localhost' identified by 'root';
Query OK, 0 rows affected (0.00 sec)
mysql> create user 'li'@'%' identified by 'li';
Query OK, 0 rows affected (0.00 sec)
mysql> grant all on *.* to 'li'@'%';
uery OK, 0 rows affected (0.01 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)
mysql> create user 'slave'@'%' identified by 'slave';
Query OK, 0 rows affected (0.00 sec)
mysql> grant replication slave on *.* to 'slave'@'%';
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
2）配置slave01数据库
[root@slave01_5 ~]# ls
anaconda-ks.cfg mysql-5.7.44-linux-glibc2.12-x86_64.tar.gz
[root@slave01_5 ~]# systemctl stop firewalld
[root@slave01_5 ~]# systemctl disable firewalld
[root@slave01_5 ~]# setenforce 0
[root@slave01_5 ~]# tar -xf mysql-5.7.44-linux-glibc2.12-x86_64.tar.gz
[root@slave01_5 ~]# cp -r mysql-5.7.44-linux-glibc2.12-x86_64 /usr/local/mysql
[root@slave01_5 ~]# rm -rf /etc/my.cnf
[root@slave01_5 ~]# mkdir /usr/local/mysql/mysql-files
[root@slave01_5 ~]# useradd -r -s /sbin/nologin mysql
[root@slave01_5 ~]# chown mysql:mysql /usr/local/mysql/mysql-files/
[root@slave01_5 ~]# chown 750 /usr/local/mysql/mysql-files/
[root@slave01_5 ~]# yum -y install rsync
3）配置slave02数据库
[root@slave01_5 ~]# ls
anaconda-ks.cfg mysql-5.7.44-linux-glibc2.12-x86_64.tar.gz
[root@slave01_5 ~]# systemctl stop firewalld
[root@slave01_5 ~]# systemctl disable firewalld
[root@slave01_5 ~]# setenforce 0
[root@slave01_5 ~]# tar -xf mysql-5.7.44-linux-glibc2.12-x86_64.tar.gz
[root@slave01_5 ~]# cp -r mysql-5.7.44-linux-glibc2.12-x86_64 /usr/local/mysql
[root@slave01_5 ~]# rm -rf /etc/my.cnf
[root@slave01_5 ~]# mkdir /usr/local/mysql/mysql-files
[root@slave01_5 ~]# useradd -r -s /sbin/nologin mysql
[root@slave01_5 ~]# chown mysql:mysql /usr/local/mysql/mysql-files/
[root@slave01_5 ~]# chown 750 /usr/local/mysql/mysql-files/
[root@slave01_5 ~]# yum -y install rsync
4）同步data
[root@msater_5 ~]# service mysql57 stop
[root@msater_5 ~]# rm -rf /usr/local/mysql/data/auto.cnf
[root@msater_5 ~]# yum -y install rsync
[root@msater_5 ~]# rsync -av /usr/local/mysql/data [email protected]:/usr/local/mysql/
[root@msater_5 ~]# rsync -av /usr/local/mysql/data [email protected]:/usr/local/mysql/
5）修改slave01配置文件
[root@slave01_5 ~]# ls /usr/local/mysql/
bin docs lib man README support-files
data include LICENSE mysql-files share
[root@slave01_5 ~]# vim /usr/local/mysql/my.cnf
[mysqld]
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
socket=/tmp/mysql.sock
port=3310
log-error=/usr/local/mysql/data/err.log
relay-log=/usr/local/mysql/data/relaylog
character_set_server=utf8mb4
server-id=11
[root@slave01_5 ~]# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql57
[root@slave01_5 ~]# sed -i '$aexport PATH=$PATH:/usr/local/mysql/bin' /etc/profile
[root@slave01_5 ~]# source /etc/profile
6）修改slave02配置文件
[root@slave01_5 ~]# ls /usr/local/mysql/
bin docs lib man README support-files
data include LICENSE mysql-files share
[root@slave01_5 ~]# vim /usr/local/mysql/my.cnf
[mysqld]
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
socket=/tmp/mysql.sock
port=3310
log-error=/usr/local/mysql/data/err.log
relay-log=/usr/local/mysql/data/relaylog
character_set_server=utf8mb4
server-id=12
[root@slave01_5 ~]# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql57
[root@slave01_5 ~]# sed -i '$aexport PATH=$PATH:/usr/local/mysql/bin' /etc/profile
[root@slave01_5 ~]# source /etc/profile
7）主服务器锁表
[root@msater_5 ~]# mysql -proot
mysql> select user,host from mysql.user;
+---------------+-----------+
| user | host |
+---------------+-----------+
| slave | % |
| li | % |
| mysql.session | localhost |
| mysql.sys | localhost |
| root | localhost |
+---------------+-----------+
5 rows in set (0.00 sec)
mysql> flush tables with read lock;
Query OK, 0 rows affected (0.00 sec)
mysql> show master status;
+---------------+----------+--------------+------------------+-------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+---------------+----------+--------------+------------------+-------------------+
| binlog.000002 | 154 | | | |
+---------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)
8）配置主从服务
[root@slave01_5 ~]# mysql -uroot -proot
mysql> change master to master_host="10.0.0.57",master_user="slave",master_password="slave",master_log_file="binlog.000002",master_log_pos=154;
Query OK, 0 rows affected, 2 warnings (0.01 sec)
mysql> start slave;
Query OK, 0 rows affected (0.01 sec)
mysql> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.2.57
Master_User: slave
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: binlog.000002
Read_Master_Log_Pos: 154
Relay_Log_File: relaylog.000002
Relay_Log_Pos: 317
Relay_Master_Log_File: binlog.000002
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
9）配置主从从服务
[root@slave01_5 ~]# mysql -uroot -proot
mysql> change master to master_host="10.0.0.57",master_user="slave",master_password="slave",master_log_file="binlog.000002",master_log_pos=154;
Query OK, 0 rows affected, 2 warnings (0.01 sec)
mysql> start slave;
Query OK, 0 rows affected (0.01 sec)
mysql> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.2.57
Master_User: slave
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: binlog.000002
Read_Master_Log_Pos: 154
Relay_Log_File: relaylog.000002
Relay_Log_Pos: 317
Relay_Master_Log_File: binlog.000002
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
2.在mysql中添加eleme数据库设置为utf8mb4
[root@msater_5 ~]# mysql -proot
mysql> unlock tables;
Query OK, 0 rows affected (0.00 sec)
mysql> create database if not exists eleme charset utf8mb4;
Query OK, 1 row affected (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| eleme |
| mysql |
| performance_schema |
| sys |
| test |
+--------------------+
6 rows in set (0.00 sec)
3.添加表t_user（master）
mysql> use eleme;
Database changed
mysql> create table t_user(
-> id int primary key auto_increment,
-> name varchar(45) not null,
-> username varchar(45) not null,
-> password varchar(45) not null,
-> remark varchar(45)
-> );
Query OK, 0 rows affected (0.01 sec)
mysql> show tables;
+-----------------+
| Tables_in_eleme |
+-----------------+
| t_user |
+-----------------+
1 row in set (0.00 sec)
4.添加2行记录（master）
mysql> insert into eleme.t_user values(1,'超级管理员','admin','admin','超级管理员'),(2,'普通用户','guest','guest','普通用户');
Query OK, 2 rows affected (0.00 sec)
Records: 2 Duplicates: 0 Warnings: 0
mysql> select * from eleme.t_user;
+----+-----------------+----------+----------+-----------------+
| id | name | username | password | remark |
+----+-----------------+----------+----------+-----------------+
| 1 | 超级管理员 | admin | admin | 超级管理员 |
| 2 | 普通用户 | guest | guest | 普通用户 |
+----+-----------------+----------+----------+-----------------+
2 rows in set (0.00 sec)
5.使用mycat为三台数据库设置负载均衡（读写分离）
1）前期jdk环境部署
[root@mycat ~]# systemctl stop firewalld
[root@mycat ~]# systemctl disable firewalld
[root@mycat ~]# ls
anaconda-ks.cfg Mycat-server-1.6.5-release-20180122220033-linux.tar.gz
jdk-8u192-linux-x64.tar.gz v
[root@mycat ~]# tar -xf jdk-8u192-linux-x64.tar.gz
[root@mycat ~]# tar -xf Mycat-server-1.6.5-release-20180122220033-linux.tar.gz
[root@mycat ~]# cp -r jdk1.8.0_192/ /usr/local/jdk
[root@mycat ~]# cp -r mycat/ /usr/local/
[root@mycat ~]# ls /usr/local/jdk/
bin lib src.zip
COPYRIGHT LICENSE THIRDPARTYLICENSEREADME-JAVAFX.txt
include man THIRDPARTYLICENSEREADME.txt
javafx-src.zip README.html
jre release
[root@mycat ~]# sed -i '$aexport JAVA_HOME=/usr/local/jdk' /etc/profile
[root@mycat ~]# source /etc/profile
[root@mycat ~]# $JAVA_HOME
-bash: /usr/local/jdk: 是一个目录
[root@mycat ~]# sed -i '$aexport PATH=$PATH:$JAVA_HOME/bin' /etc/profile
[root@mycat ~]# source /etc/profile
[root@mycat ~]# $PATH
-bash: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/usr/local/jdk/bin: 没有那个文件或目录
[root@mycat ~]# javac -version
javac 1.8.0_192
2）修改server.xml配置文件
[root@mycat ~]# vim /usr/local/mycat/conf/server.xml
93
94
95
# 注释
107
3）修改schema.xml 配置文件
4）启动服务
[root@mycat ~]# /usr/local/mycat/bin/mycat start
Starting Mycat-server...
[root@mycat ~]# netstat -lnput | grep 8066
tcp6 0 0 :::8066 :::* LISTEN 1336/java
6.客户端测试mycat
7.部署java17环境
1）java01
[root@java01 ~]# ls
anaconda-ks.cfg jdk-17_linux-x64_bin.tar.gz
[root@java01 ~]# tar -xf jdk-17_linux-x64_bin.tar.gz
[root@java01 ~]# ls
anaconda-ks.cfg jdk-17.0.12 jdk-17_linux-x64_bin.tar.gz
[root@java01 ~]# cp -r jdk-17.0.12/ /usr/local/jdk
[root@java01 ~]# vim /etc/profile
export JAVA_HOME=/usr/local/jdk
export PATH=$PATH:$JAVA_HOME/bin
[root@java01 ~]# source /etc/profile
[root@java01 ~]# javac --version
javac 17.0.12
[root@java01 ~]# firewall-cmd --add-port=8080/tcp --permanent
success
[root@java01 ~]# firewall-cmd --reload
success
[root@java01 ~]# ls
anaconda-ks.cfg application.yml eleme_server-0.0.1-SNAPSHOT.jar jdk-17.0.12 jdk-17_linux-x64_bin.tar.gz
[root@java01 ~]# vim application.yml
server:
port: 8080
spring:
datasource:
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://10.0.0.11:8066/eleme
username: li
password: li
[root@java01 ~]# java -jar eleme_server-0.0.1-SNAPSHOT.jar
2）浏览器访问：10.0.0.12:8080
3）java02
[root@java01 ~]# ls
anaconda-ks.cfg jdk-17_linux-x64_bin.tar.gz
[root@java01 ~]# tar -xf jdk-17_linux-x64_bin.tar.gz
[root@java01 ~]# ls
anaconda-ks.cfg jdk-17.0.12 jdk-17_linux-x64_bin.tar.gz
[root@java01 ~]# cp -r jdk-17.0.12/ /usr/local/jdk
[root@java01 ~]# vim /etc/profile
export JAVA_HOME=/usr/local/jdk
export PATH=$PATH:$JAVA_HOME/bin
[root@java01 ~]# source /etc/profile
[root@java01 ~]# javac --version
javac 17.0.12
[root@java01 ~]# firewall-cmd --add-port=8080/tcp --permanent
success
[root@java01 ~]# firewall-cmd --reload
success
[root@java01 ~]# ls
anaconda-ks.cfg application.yml eleme_server-0.0.1-SNAPSHOT.jar jdk-17.0.12 jdk-17_linux-x64_bin.tar.gz
[root@java01 ~]# vim application.yml
server:
port: 8080
spring:
datasource:
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://10.0.0.11:8066/eleme
username: li
password: li
[root@java01 ~]# java -jar eleme_server-0.0.1-SNAPSHOT.jar
4）浏览器访问：10.0.0.13:8080
8.部署LVS-nat模式
1）lvs
[root@lvs ~]# ifconfig ens33:0 10.0.0.100 broadcast 10.0.0.100 netmask 255.255.255.255 up
[root@lvs ~]# route add -host 10.0.0.100 dev ens33:0
[root@lvs ~]# yum -y install ipvsadm
[root@lvs ~]# ipvsadm -C
[root@lvs ~]# ipvsadm -A -t 10.0.0.100:8080 -s rr
[root@lvs ~]# ipvsadm -a -t 10.0.0.100:8080 -r 10.0.0.12 -g
[root@lvs ~]# ipvsadm -a -t 10.0.0.100:8080 -r 10.0.0.13 -g
[root@lvs ~]# systemctl stop firewalld
[root@lvs ~]# systemctl disable firewalld
Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
[root@lvs ~]# setenforce 0
[root@lvs ~]# systemctl stop firewalld
[root@lvs ~]# ipvsadm -Ln
TCP 10.0.0.100:8080 rr
-> 10.0.0.12:8080 Route 1 0 1
-> 10.0.0.13:8080 Route 1 0 1
2）java01
[root@java01 ~]# ifconfig lo:0 10.0.0.100 broadcast 10.0.0.100 netmask 255.255.255.255 up
[root@java01 ~]# route add -host 10.0.0.100 dev lo:0
[root@java01 ~]# echo 1 > /proc/sys/net/ipv4/conf/lo/arp_ignore
[root@java01 ~]# echo 2 > /proc/sys/net/ipv4/conf/lo/arp_announce
[root@java01 ~]# echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
[root@java01 ~]# echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
3）java02
[root@java01 ~]# ifconfig lo:0 10.0.0.100 broadcast 10.0.0.100 netmask 255.255.255.255 up
[root@java01 ~]# route add -host 10.0.0.100 dev lo:0
[root@java01 ~]# echo 1 > /proc/sys/net/ipv4/conf/lo/arp_ignore
[root@java01 ~]# echo 2 > /proc/sys/net/ipv4/conf/lo/arp_announce
[root@java01 ~]# echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
[root@java01 ~]# echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
4）浏览器访问：10.0.0.100:8080(外网地址)