Detailed explanation of compiling and installing MySQL 5.6 on CentOS and installing multiple MySQL instances

--1. Create a new group and user for mysql

# useradd -M -s /sbin/nologin mysql

--2. Install required libraries and compilers

# yum install ncurses-devel openssl-devel cmake -y

--3. Unzip

# tar zxvf mysql-5.6.35.tar.gz
# cd mysql-5.6.35

--4. Compile and install

# cmake \
-DCMAKE_INSTALL_PREFIX=/usr/local/mysql \
-DMYSQL_DATADIR=/usr/local/mysql/data \
-DSYSCONFDIR=/etc \
-DWITH_MYISAM_STORAGE_ENGINE=1 \
-DWITH_INNOBASE_STORAGE_ENGINE=1 \
-DWITH_MEMORY_STORAGE_ENGINE=1 \
-DWITH_READLINE=1 \
-DMYSQL_TCP_PORT=3306 \
-DENABLED_LOCAL_INFILE=1 \
-DWITH_PARTITION_STORAGE_ENGINE=1 \
-DEXTRA_CHARSETS=all \
-DDEFAULT_CHARSET=utf8 \
-DDEFAULT_COLLATION=utf8_general_ci \
-DMYSQL_USER=mysql \
-DWITH_DEBUG=0 \
-DWITH_SSL=system
# make
# make install

--5. Copy the template as a configuration file

# cp support-files/my-default.cnf /etc/my.cnf

--6. Set mysql permissions

# chown -R mysql.mysql /usr/local/mysql/

--7. Initialize mysql database

# /usr/local/mysql/scripts/mysql_install_db --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --user=mysql
# chown -R root /usr/local/mysql/
# chown -R mysql /usr/local/mysql/data/

--8. Set MySQL to start automatically at boot

# cp support-files/mysql.server /etc/init.d/mysqld
# chmod +x /etc/init.d/mysqld
# chkconfig mysqld on

--9. Test and run mysql

#service mysqld start

--10. Change the mysql administrator password

#/usr/local/mysql/bin/mysqladmin -u root password 'Password to be set'

--11. Log in to mysql using user

# /usr/local/mysql/bin/mysql -u root -p

--12. Add environment variables

# echo 'PATH=/usr/local/mysql/bin/:$PATH' >>/etc/profile
# source /etc/profile

CentOS 6.5 minimal compilation and installation of mysql 5.5.35 configuration multiple instances

1. Turn off the firewall

1234567 [root@mysql ~]# service iptables stop
iptables: Setting chains to policy ACCEPT: filter [ OK ]
iptables: Flushing firewall rules: [ OK ]
iptables: Unloading modules: [ OK ]
[root@mysql ~]# chkconfig iptables off
[root@mysql ~]# chkconfig iptables --list
iptables 0:off 1:off 2:off 3:off 4:off 5:off 6:off

2. Turn off selinux

12 [root@mysql ~]# setenforce 0
[root@mysql ~]# vim /etc/sysconfig/selinux

Modify the following line;

SELINUX=disabled
12 [root@mysql ~]# getenforce 
Permissive

3. Install mysql dependency packages and compilation tools;

1234 [root@mysql ~]# yum install libaio-devel -y
[root@mysql ~]# yum install -y ncurses-devel
[root@mysql ~]# yum install -y gcc gcc-c++ 
[root@mysql ~]# yum install -y cmake

4. Preparation before installation;

4.1. Installation path:

1 [root@mysql ~]# mkdir /usr/local/mysql

4.2. Database path:

1 [root@mysql ~]# mkdir /data/mysql -p

4.3. Create users and user groups

12 [root@mysql ~]# groupadd mysql
[root@mysql ~]# useradd -r -g mysql -s /bin/false mysql

4.4. Grant permissions to the data storage directory

1 [root@mysql ~]# chown mysql:mysql -R /data/mysql

5. Compile and install mysql 5.5.35

1234567 [root@mysql ~]# yum install -y lrzsz
root@mysql ~]# mkdir /package
[root@mysql ~]# cd /package/
[root@mysql package]# tar xf mysql-5.5.32.tar.gz 
[root@mysql package]# cd mysql-5.5.32
[root@mysql mysql-5.5.32]# cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_UNIX_ADDR=/data/mysql/mysql.sock -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DWITH_EXTRA_CHARSETS:STRING=utf8,gbk -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_READLINE=1 -DENABLED_LOCAL_INFILE=1 -DMYSQL_DATADIR=/data/mysql/ -DMYSQL_USER=mysql -DMYSQL_TCP_PORT=3306
[root@mysql mysql-5.5.32]# make && make install

6. Create a multi-instance database file storage location;

12345678 [root@mysql ~]# mkdir -p /data/{3306,3307}/data
[root@mysql ~]# tree /data
/data
|-- 3306
| `-- data
`-- 3307
  `--data
4 directories, 0 files

7. Modify the configuration file (my.cnf) as follows and put it in the 3306 and 3307 directories respectively;

123456789 [root@mysql 3306]# vim my.cnf 
[client]
port = 3306
socket = /data/3306/mysql.sock
[mysqld]
port = 3306
socket = /data/3306/mysql.sock
datadir = /data/3306
server-id = 3306

8. Initialize the database;

Note: You need to specify a different data directory when initializing the database

123 [root@mysql mysql-5.5.32]# cd /usr/local/mysql/
[root@mysql mysql]# scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/data/3306
[root@mysql mysql]# scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/data/3307

9. Start multiple instances, and the startup script can be added to the startup file.

12 [root@mysql mysql]# /usr/local/mysql/bin/mysqld_safe --defaults-file=/data/3306/my.cnf 2>&1 >/dev/null &  
[root@mysql mysql]# /usr/local/mysql/bin/mysqld_safe --defaults-file=/data/3307/my.cnf 2>&1 >/dev/null &

9.1. Check the port;

12345678 [root@mysql mysql]# netstat -tunlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name  
tcp 0 0 0.0.0.0:3307 0.0.0.0:* LISTEN 11621/mysqld    
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1266/sshd      
tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 11338/mysqld    
tcp 0 0 :::22 :::* LISTEN 1266/sshd      
udp 0 0 0.0.0.0:68 0.0.0.0:* 969/dhclient

10. Log in to a multi-instance database

12 [root@mysql mysql]# /usr/local/mysql/bin/mysql -u root -p -P 3306 -S /data/3306/mysql.sock
[root@mysql mysql]# /usr/local/mysql/bin/mysql -u root -p -P 3307 -S /data/3307/mysql.sock

11. Close MySQL multi-instance mode

12 [root@mysql mysql]# /usr/local/mysql/bin/mysqladmin -u root -p -P 3306 -S /data/3306/mysql.sock shutdown  
[root@mysql mysql]# /usr/local/mysql/bin/mysqladmin -u root -p -P 3307 -S /data/3307/mysql.sock shutdown
cat /etc/my.cnf 
[mysqld1]
datadir=/data/mysql
socket=/tmp/mysql.sock
user=mysql
symbolic-links=0
skip-name-resolve
server-id=1221
max_connections = 2000
binlog-ignore-db=mysql
binlog-ignore-db=test
binlog-ignore-db=information_schema
binlog-ignore-db=performance_schema
innodb_buffer_pool_size = 2G
innodb_additional_mem_pool=16M
innodb_log_file_size=256M
innodb_flush_log_at_trx_commit=2
character_set_server=utf8
collation_server = utf8_general_ci
replicate_ignore_db = mysql
slave-skip-errors=all
relay_log=/data/mysql/
[mysqld2]
port=3307
server-id=1222
log-error=/tmp/mysqld2.log
datadir=/data/mysql_live
socket=/tmp/mysql2.sock
user=mysql
symbolic-links=0
skip-name-resolve
character_set_server=utf8
collation_server = utf8_general_ci
max-connections=500
default-storage-engine=INNODB
innodb_file_per_table
log-bin=mysql-bin
relay-log-info-repository=TABLE
master-info-repository=TABLE
expire_logs_days=10
binlog_format=ROW
transaction-isolation=READ-COMMITTED
binlog-ignore-db=mysql
binlog-ignore-db=test
binlog-ignore-db=information_schema
binlog-ignore-db=performance_schema
slow_query_log=TRUE
slow_query_log_file=/tmp/mysqld_slow_query2.log
long_query_time=3
replicate_ignore_db = mysql
slave-skip-errors=all
[mysqld3]
server-id=1223
port=3308
log-error=/tmp/mysqld3.log
datadir=/data/mysql
socket=/tmp/mysql3.sock
user=mysql
symbolic-links=0
skip-name-resolve
character_set_server=utf8
collation_server = utf8_general_ci
max-connections=500
default-storage-engine=INNODB
innodb_file_per_table
log-bin=mysql-bin
relay-log-info-repository=TABLE
master-info-repository=TABLE
expire_logs_days=10
binlog_format=ROW
transaction-isolation=READ-COMMITTED
binlog-ignore-db=mysql
binlog-ignore-db=test
binlog-ignore-db=information_schema
binlog-ignore-db=performance_schema
slow_query_log=TRUE
slow_query_log_file=/tmp/mysqld_slow_query3.log
long_query_time=3
replicate_ignore_db = mysql
slave-skip-errors=all
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/data/mysql/mysqld.pid

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