MySQL5.7安裝和主從複製

阿新 • • 發佈：2021-08-23

伺服器主機名 ip 說明
Mysql-node1 192.168.56.12 物理資料庫1
Mysql-node2 192.168.56.13 物理資料庫2
建立mysql使用者groupadd mysql
useradd -r -g mysql -s /bin/false mysql
安裝MySQLyum install -y libaio
cd /usr/local/src/
wget http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz
tar -zxf mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz
 
cp -rf mysql-5.7.17-linux-glibc2.5-x86_64 /data/app/mysql-3306
cp -rf mysql-5.7.17-linux-glibc2.5-x86_64 /data/app/mysql-3307
chown -R mysql:mysql /data/app/mysql-3306
chown -R mysql:mysql /data/app/mysql-3307
/data/app/mysql-3306/bin/mysqld --initialize-insecure --user=mysql --basedir=/data/app/mysql-3306 --datadir=/data/app/mysql-3306/data
 
/data/app/mysql-3307/bin/mysqld --initialize-insecure --user=mysql --basedir=/data/app/mysql-3307 --datadir=/data/app/mysql-3307/data
修改my.cnf需要修改的引數：
server-id：保證每個配置檔案唯一
兩臺master的自增長ID必須不同
linux-node1mastercat > /data/app/mysql-3306/my.cnf<<EOF
[client]
port = 3306
socket = /data/app/mysql-3306/mysql.sock
[mysqld]
 
port = 3306
user = mysql
server-id = 1
bind-address = 0.0.0.0
basedir = /data/app/mysql-3306
datadir = /data/app/mysql-3306/data
socket = /data/app/mysql-3306/mysql.sock
pid-file = /data/app/mysql-3306/mysql.pid
log-error = /data/app/mysql-3306/mysqld.log
skip-name-resolve
log_bin = mysql-bin
log-slave-updates
auto-increment-increment = 2
auto-increment-offset = 1
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
EOF
chown mysql.mysql /data/app/mysql-3306/my.cnf
slavecat > /data/app/mysql-3307/my.cnf<<EOF
[client]
port = 3307
socket = /data/app/mysql-3307/mysql.sock
[mysqld]
port = 3307
user = mysql
server-id = 11
bind-address = 0.0.0.0
basedir = /data/app/mysql-3307
datadir = /data/app/mysql-3307/data
socket = /data/app/mysql-3307/mysql.sock
pid-file = /data/app/mysql-3307/mysql.pid
log-error = /data/app/mysql-3307/mysqld.log
skip-name-resolve
log_bin = mysql-bin
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
EOF
chown mysql.mysql /data/app/mysql-3307/my.cnf
linux-node2mastercat > /data/app/mysql-3306/my.cnf<<EOF
[client]
port = 3306
socket = /data/app/mysql-3306/mysql.sock
[mysqld]
port = 3306
user = mysql
server-id = 2
bind-address = 0.0.0.0
basedir = /data/app/mysql-3306
datadir = /data/app/mysql-3306/data
socket = /data/app/mysql-3306/mysql.sock
pid-file = /data/app/mysql-3306/mysql.pid
log-error = /data/app/mysql-3306/mysqld.log
skip-name-resolve
log_bin = mysql-bin
log-slave-updates
auto-increment-increment = 2
auto-increment-offset = 2
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
EOF
chown mysql.mysql /data/app/mysql-3306/my.cnf
slavecat > /data/app/mysql-3307/my.cnf<<EOF
[client]
port = 3307
socket = /data/app/mysql-3307/mysql.sock
[mysqld]
port = 3307
user = mysql
server-id = 22
bind-address = 0.0.0.0
basedir = /data/app/mysql-3307
datadir = /data/app/mysql-3307/data
socket = /data/app/mysql-3307/mysql.sock
pid-file = /data/app/mysql-3307/mysql.pid
log-error = /data/app/mysql-3307/mysqld.log
skip-name-resolve
log_bin = mysql-bin
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
EOF
chown mysql.mysql /data/app/mysql-3307/my.cnf
啟動MySQL啟動服務linux-node1和linux-node2都執行如下命令
touch /data/app/mysql-3306/mysqld.log && chown mysql.mysql /data/app/mysql-3306/mysqld.log
sed -i 's#/usr/local/mysql#/data/app/mysql-3306#g' /data/app/mysql-3306/bin/mysqld_safe
/data/app/mysql-3306/bin/mysqld_safe --defaults-file=/data/app/mysql-3306/my.cnf --basedir=/data/app/mysql-3306 --datadir=/data/app/mysql-3306/data --user=mysql &
touch /data/app/mysql-3307/mysqld.log && chown mysql.mysql /data/app/mysql-3307/mysqld.log
sed -i 's#/usr/local/mysql#/data/app/mysql-3307#g' /data/app/mysql-3307/bin/mysqld_safe
/data/app/mysql-3307/bin/mysqld_safe --defaults-file=/data/app/mysql-3307/my.cnf --basedir=/data/app/mysql-3307 --datadir=/data/app/mysql-3307/data --user=mysql &
檢查埠ss -lntup |egrep '3306|3307'
tcp  LISTEN   0   80           *:3306         *:*   users:(("mysqld",19973,22))
tcp  LISTEN   0   80           *:3307         *:*   users:(("mysqld",20537,22))
設定開機自啟cp support-files/mysql.server/etc/rc.d/init.d/mysqld
賦予可執行許可權：chmod +x /etc/init.d/mysqld
新增為服務:chkconfig --add mysqld
檢視服務列表:chkconfig --list
看到3、4、5狀態為開或者為 on 則表示成功。如果是 關或者 off 則執行一下：chkconfig --level 345 mysqld on
重啟計算機:reboot
配置雙主配置主從linux-node1mastercd /data/app/mysql-3306/
./bin/mysql -uroot -p -S mysql.sock -P 3306
mysql> CREATE USER 'repl'@'192.%' IDENTIFIED BY 'mysql';
Query OK, 0 rows affected (0.05 sec)
mysql> GRANT REPLICATION SLAVE ON *.* TO 'repl'@'192.%';
Query OK, 0 rows affected (0.00 sec)
mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File       | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000001 |   613 |       |         |          |
+------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)
slavecd /data/app/mysql-3307/
./bin/mysql -uroot -p -S mysql.sock -P 3307
mysql> CHANGE MASTER TO MASTER_HOST='192.168.56.12',
 ->         MASTER_PORT=3306,
 ->         MASTER_USER='repl',
 ->         MASTER_PASSWORD='mysql',
 ->         MASTER_LOG_FILE='mysql-bin.000001',
 ->         MASTER_LOG_POS=613;
Query OK, 0 rows affected, 2 warnings (0.04 sec)
mysql> start slave;
Query OK, 0 rows affected (0.02 sec)
mysql> show slave status\G
*************************** 1. row ***************************
       Slave_IO_State: Waiting for master to send event
        Master_Host: 192.168.56.12
        Master_User: repl
        Master_Port: 3306
       Connect_Retry: 60
      Master_Log_File: mysql-bin.000001
    Read_Master_Log_Pos: 613
       Relay_Log_File: linux-node1-relay-bin.000002
       Relay_Log_Pos: 320
   Relay_Master_Log_File: mysql-bin.000001
      Slave_IO_Running: Yes
     Slave_SQL_Running: Yes
linux-node2mastercd /data/app/mysql-3306/
./bin/mysql -uroot -p -S mysql.sock -P 3306
mysql> CREATE USER 'repl'@'192.%' IDENTIFIED BY 'mysql';
Query OK, 0 rows affected (0.05 sec)
mysql> GRANT REPLICATION SLAVE ON *.* TO 'repl'@'192.%';
Query OK, 0 rows affected (0.00 sec)
mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File       | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000001 |   613 |       |         |          |
+------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)
slavecd /data/app/mysql-3307/
./bin/mysql -uroot -p -S mysql.sock -P 3307
mysql>
CHANGE MASTER TO MASTER_HOST='192.168.56.13',
        MASTER_PORT=3306,
        MASTER_USER='repl',
        MASTER_PASSWORD='mysql',
        MASTER_LOG_FILE='mysql-bin.000001',
        MASTER_LOG_POS=613;
Query OK, 0 rows affected, 2 warnings (0.04 sec)
mysql> start slave;
Query OK, 0 rows affected (0.02 sec)
mysql> show slave status\G
*************************** 1. row ***************************
       Slave_IO_State: Waiting for master to send event
        Master_Host: 192.168.56.13
        Master_User: repl
        Master_Port: 3306
       Connect_Retry: 60
      Master_Log_File: mysql-bin.000001
    Read_Master_Log_Pos: 613
       Relay_Log_File: linux-node1-relay-bin.000002
       Relay_Log_Pos: 320
   Relay_Master_Log_File: mysql-bin.000001
      Slave_IO_Running: Yes
     Slave_SQL_Running: Yes
配置雙主master的binlog位置linux-node1master端d /data/app/mysql-3306/
./bin/mysql -uroot -p -S mysql.sock -P 3306
mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File       | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000001 |   613 |       |         |          |
+------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)
linux-node2master端cd /data/app/mysql-3306/
./bin/mysql -uroot -p -S mysql.sock -P 3306
mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File       | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000001 |   613 |       |         |          |
+------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)
linux-node1master配置跟linux-node2master同步mysql> CHANGE MASTER TO MASTER_HOST='192.168.56.13',
        MASTER_PORT=3306,
        MASTER_USER='repl',
        MASTER_PASSWORD='mysql',
        MASTER_LOG_FILE='mysql-bin.000001',
        MASTER_LOG_POS=613;
mysql> start slave;
Query OK, 0 rows affected (0.03 sec)
mysql> show slave status\G
*************************** 1. row ***************************
       Slave_IO_State: Waiting for master to send event
        Master_Host: 192.168.56.13
        Master_User: repl
        Master_Port: 3306
       Connect_Retry: 60
      Master_Log_File: mysql-bin.000001
    Read_Master_Log_Pos: 613
       Relay_Log_File: linux-node1-relay-bin.000002
       Relay_Log_Pos: 320
   Relay_Master_Log_File: mysql-bin.000001
      Slave_IO_Running: Yes
     Slave_SQL_Running: Yes    
linux-node2master配置跟linux-node1master同步mysql> CHANGE MASTER TO MASTER_HOST='192.168.56.12',
        MASTER_PORT=3306,
        MASTER_USER='repl',
        MASTER_PASSWORD='mysql',
        MASTER_LOG_FILE='mysql-bin.000001',
        MASTER_LOG_POS=613;
mysql> start slave;
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql> show slave status\G
*************************** 1. row ***************************
       Slave_IO_State: Waiting for master to send event
        Master_Host: 192.168.56.12
        Master_User: repl
        Master_Port: 3306
       Connect_Retry: 60
      Master_Log_File: mysql-bin.000001
    Read_Master_Log_Pos: 613
       Relay_Log_File: linux-node2-relay-bin.000002
       Relay_Log_Pos: 320
   Relay_Master_Log_File: mysql-bin.000001
      Slave_IO_Running: Yes
     Slave_SQL_Running: Yes
驗證從linux-node1上驗證在linux-node1master上建立資料mysql> create database test;
Query OK, 1 row affected (0.01 sec)
mysql> use test;
Database changed
mysql> create table temp(id int,name varchar(64));
Query OK, 0 rows affected (0.11 sec)
mysql> insert into temp values(1,'aaa');
Query OK, 1 row affected (0.28 sec)
mysql> CREATE TABLE temp2(id INT ,nname VARCHAR(64));
Query OK, 0 rows affected (0.01 sec)
mysql> insert into temp2(nname) values('bbb');
Query OK, 1 row affected (0.01 sec)
mysql> select * from test.temp;
+------+------+
| id  | name |
+------+------+
|  1 | aaa |
+------+------+
1 row in set (0.01 sec)
在linux-node1slave上檢視資料mysql> select * from test.temp;
+------+------+
| id  | name |
+------+------+
|  1 | aaa |
+------+------+
1 row in set (0.00 sec)
在linux-node2master上檢視資料mysql> select * from test.temp;
+------+------+
| id  | name |
+------+------+
|  1 | aaa |
+------+------+
1 row in set (0.00 sec)
在linux-node2slave上檢視資料mysql> select * from test.temp;
+------+------+
| id  | name |
+------+------+
|  1 | aaa |
+------+------+
1 row in set (0.00 sec)
從linux-node2上驗證在linux-node2master上建立資料mysql> use test;
mysql> insert into temp2(nname) values('ddd');
Query OK, 1 row affected (0.02 sec)
mysql> insert into temp2(nname) values('fff');
Query OK, 1 row affected (0.00 sec)
mysql> select * from test.temp2;
+----+-------+
| id | nname |
+----+-------+
| 1 | bbb  |
| 2 | ddd  |
| 4 | fff  |
+----+-------+
在linux-node2slave上檢視資料mysql> select * from test.temp2;
+----+-------+
| id | nname |
+----+-------+
| 1 | bbb  |
| 2 | ddd  |
| 4 | fff  |
+----+-------+
3 rows in set (0.00 sec)
在linux-node1master上檢視資料mysql> select * from test.temp2;
+----+-------+
| id | nname |
+----+-------+
| 1 | bbb  |
| 2 | ddd  |
| 4 | fff  |
+----+-------+
3 rows in set (0.00 sec)
在linux-node1slave上檢視資料mysql> select * from test.temp2;
+----+-------+
| id | nname |
+----+-------+
| 1 | bbb  |
| 2 | ddd  |
| 4 | fff  |
+----+-------+
3 rows in set (0.00 sec)
結論在任意一個master端更新資料，其他任意端都可以更新資料
兩臺伺服器配置了間隔自增長，資料不同衝突

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MySQL5.7安裝和主從複製

建立mysql使用者

安裝MySQL

修改my.cnf

linux-node1

master

slave

linux-node2

master

slave

啟動MySQL

啟動服務

檢查埠

設定開機自啟

配置雙主

配置主從

linux-node1

master

slave

linux-node2

master

slave

配置雙主

master的binlog位置

linux-node1master端

linux-node2master端

linux-node1master配置跟linux-node2master同步

linux-node2master配置跟linux-node1master同步

驗證

從linux-node1上驗證

在linux-node1master上建立資料

在linux-node1slave上檢視資料

在linux-node2master上檢視資料

在linux-node2slave上檢視資料

從linux-node2上驗證

在linux-node2master上建立資料

在linux-node2slave上檢視資料

在linux-node1master上檢視資料

在linux-node1slave上檢視資料

結論

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