Shulou(Shulou.com)06/01 Report--

Install multiple instances and open multiple different server ports 3306 3307 at the same time

Large company installation database is generally compiled and installed, and will be made into rpm package after optimization for unified use.

Install mysql, if the previous single instance mysql has been enabled for execution

Pkill mysqld

Rm-f / etc/init.d/mysqld

Then do a multi-instance installation, where the mysql installation directory / application/mysql

Mkdir-p / data/ {3306 ~ 3307} / data

Tree / data/

Ll / application/mysql/support-files/ # MySQL defaults to multiple user-provided profile templates my*.conf

Vim / data/3306/my.cnf

[client]

Port = 3306

Socket = / data/3306/mysql.sock

[mysql]

No-auto-rehash

[mysqld]

User = mysql

Port = 3306

Socket = / data/3306/mysql.sock

Basedir = / application/mysql

Datadir = / data/3306/data

Open_files_limit = 1024

Back_log = 600,

Max_connections = 800,

Max_connect_errors = 3000

Table_cache = 614

External-locking = FALSE

Max_allowed_packet = 8m

Sort_buffer_size = 1m

Join_buffer_size = 1m

Thread_cache_size = 100

Thread_concurrency = 2

Query_cache_size = 2m

Query_cache_limit = 1m

Query_cache_min_res_unit = 2k

# default_table_type = InnoDB

Thread_stack = 19K

Transaction_isolation = READ-COMMITTED

Tmp_table_size = 2m

Max_heap_table_size = 2m

Long_query_time = 1

Pid-file = / data/3306/mysql.pid

Relay-log = / data/3306/relay-bin

Relay-log-info-file = / data/3306/relay-log.info

Binlog_cache_size = 1m

Max_binlog_cache_size = 1m

Max_binlog_size = 2m

Key_buffer_size = 16m

Read_buffer_size = 1m

Read_rnd_buffer_size = 1m

Bulk_insert_buffer_size = 1m

Lower_case_table_names = 1

Skip-name-resolve

Slave-skip-errors = 1032 and 1062

Replicate-ignore-db=mysql

Server-id = 1

Innodb_additional_mem_pool_size = 4m

Innodb_buffer_pool_size = 32m

Innodb_data_file_path = ibdata1:128M:autoextend

Innodb_file_io_threads = 4

Innodb_thread_concurrency = 8

Innodb_flush_log_at_trx_commit = 2

Innodb_log_buffer_size = 2m

Innodb_log_file_size = 4m

Innodb_log_files_in_group = 3

Innodb_max_dirty_pages_pct = 90

Innodb_lock_wait_timeout = 120

Innodb_file_per_table = 0

[mysqldump]

Quick

Max_allowed_packet = 2m

[mysqld_safe]

Log-error=/data/3306/mysql_3306.err

Pid-file=/data/3306/mysqld.pid

Change the directory to your mysql installation directory

Sed-I "s#/application/mysql#/usr/local/mysql#g" / data/3306/my.cnf

Vim / data / 3307/my.cnf

[client]

Port = 3307

Socket = / data/3307/mysql.sock

[mysql]

No-auto-rehash

[mysqld]

User = mysql

Port = 3307

Socket = / data/3307/mysql.sock

Basedir = / application/mysql

Datadir = / data/3307/data

Open_files_limit = 1024

Back_log = 600,

Max_connections = 800,

Max_connect_errors = 3000

Table_cache = 614

External-locking = FALSE

Max_allowed_packet = 8m

Sort_buffer_size = 1m

Join_buffer_size = 1m

Thread_cache_size = 100

Thread_concurrency = 2

Query_cache_size = 2m

Query_cache_limit = 1m

Query_cache_min_res_unit = 2k

# default_table_type = InnoDB

Thread_stack = 19K

Transaction_isolation = READ-COMMITTED

Tmp_table_size = 2m

Max_heap_table_size = 2m

Long_query_time = 1

Pid-file = / data/3307/mysql.pid

Relay-log = / data/3307/relay-bin

Relay-log-info-file = / data/3307/relay-log.info

Binlog_cache_size = 1m

Max_binlog_cache_size = 1m

Max_binlog_size = 2m

Key_buffer_size = 16m

Read_buffer_size = 1m

Read_rnd_buffer_size = 1m

Bulk_insert_buffer_size = 1m

Lower_case_table_names = 1

Skip-name-resolve

Slave-skip-errors = 1032 and 1062

Replicate-ignore-db=mysql

Server-id = 3

Innodb_additional_mem_pool_size = 4m

Innodb_buffer_pool_size = 32m

Innodb_data_file_path = ibdata1:128M:autoextend

Innodb_file_io_threads = 4

Innodb_thread_concurrency = 8

Innodb_flush_log_at_trx_commit = 2

Innodb_log_buffer_size = 2m

Innodb_log_file_size = 4m

Innodb_log_files_in_group = 3

Innodb_max_dirty_pages_pct = 90

Innodb_lock_wait_timeout = 120

Innodb_file_per_table = 0

[mysqldump]

Quick

Max_allowed_packet = 2m

[mysqld_safe]

Log-error=/data/3307/mysql_3307.err

Pid-file=/data/3307/mysqld.pid

Change the directory to your mysql installation directory

Sed-I "s#/application/mysql#/usr/local/mysql#g" / data/3307/my.cnf

Edit the mysql startup script

Vim / data/3306/mysql

#! / bin/sh

#

# this scripts is created by jie at 2017-06-20

# init

Port=3306

Mysql_user= "root"

Mysql_pwd= "qwe123" # & 1 > / dev/null &

Else

Printf "MySQL is running...\ n"

Exit

Fi

}

# stop function

Function_stop_mysql ()

{

If [!-e "$mysql_sock"]; then

Printf "MySQL is stopped...\ n"

Exit

Else

Printf "Stoping MySQL...\ n"

${CmdPath} / mysqladmin-u ${mysql_user}-p$ {mysql_pwd}-S / data/$ {port} / mysql.sock shutdown

Fi

}

# restart function

Function_restart_mysql ()

{

Printf "Restarting MySQL...\ n"

Function_stop_mysql

Sleep 2

Function_start_mysql

}

Case $1 in

Start)

Function_start_mysql

Stop)

Function_stop_mysql

Restart)

Function_restart_mysql

*)

Printf "Usage: / data/$ {port} / mysql {start | stop | restart}\ n"

Esac

Modify the directory sed-I "s#/application/mysql#/usr/local/mysql#g" / data/3306/mysql

Vim / data/3307/mysql

#! / bin/sh

#

# this scripts is created by jie at 2017-06-20

# init

Port=3307

Mysql_user= "root"

Mysql_pwd= "qwe123" # & 1 > / dev/null &

Else

Printf "MySQL is running...\ n"

Exit

Fi

}

# stop function

Function_stop_mysql ()

{

If [!-e "$mysql_sock"]; then

Printf "MySQL is stopped...\ n"

Exit

Else

Printf "Stoping MySQL...\ n"

${CmdPath} / mysqladmin-u ${mysql_user}-p$ {mysql_pwd}-S / data/$ {port} / mysql.sock shutdown

Fi

}

# restart function

Function_restart_mysql ()

{

Printf "Restarting MySQL...\ n"

Function_stop_mysql

Sleep 2

Function_start_mysql

}

Case $1 in

Start)

Function_start_mysql

Stop)

Function_stop_mysql

Restart)

Function_restart_mysql

*)

Printf "Usage: / data/$ {port} / mysql {start | stop | restart}\ n"

Esac

Modify the directory sed-I "s#/application/mysql#/usr/local/mysql#g" / data/3307/mysql

[root@*** data] # tree / data/

/ data/

├── 3306

│ ├── data

│ ├── my.cnf

│ └── mysql

└── 3307

├── data

├── my.cnf

└── mysql

In the multi-instance startup file, different mysql instance services are started and the commands executed are essentially different.

Mysqld_safe-- defaults-file=/data/3306/my.cnf 2 > & 1 > / dev/null &

Mysqld_safe-- defaults-file=/data/3307/my.cnf 2 > & 1 > / dev/null &

The actual command to stop different mysql instance services

Mysqladmin-u root-pqwe123-S / data/3306/mysql.sock shutdown

Mysqladmin-u root-pqwe123-S / data/3307/mysql.sock shutdown

Authorize chown-R mysql.mysql / data

Find / data-name mysql | xargs ls-l

Find / data-name mysql | xargs chmod 700

Find / data-name mysql-exec ls-l {}\; the effect above the root is the same.

Ls / application/mysql/bin/mysql

Echo 'export PATH=/application/mysql/bin:$PATH' > > / etc/profile # define the mysql installation directory bin to the environment variable

[root@web1] # tail-1 / etc/profile

Export PATH=/application/mysql/bin:$PATH

Source / etc/profile

[root@web1 ~] # echo $PATH

/ application/mysql/bin:/application/mysql/bin:/application/mysql/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

You can also set a soft connection without setting the environment variable

Ln-s / application/mysql/bin/* / usr/local/sbin/

Cd / application/mysql/scripts

Initialize the database

. / mysql_install_db-- basedir=/application/mysql-- datadir=/data/3306/data-- user=mysql

. / mysql_install_db-- basedir=/application/mysql-- datadir=/data/3307/data-- user=mysql

See that the following display is successful

Installing MySQL system tables...

170620 12:43:43 [Note] / usr/local/mysql/bin/mysqld (mysqld 5.5.48-log) starting as process 29870.

OK

Filling help tables...

170620 12:43:43 [Note] / usr/local/mysql/bin/mysqld (mysqld 5.5.48-log) starting as process 29877.

OK

Check the directory tree / data

Start the multi-instance database

/ data/3306/mysql start

/ data/3307/mysql start

Echo "/ data/3306/mysql start" > > / etc/rc.local # join boot boot

Echo "/ data/3307/mysql start" > > / etc/rc.local

Mysql-S / data/3306/mysql.sock # login database without password

Mysql-S / data/3307/mysql.sock

Come in as root directly.

Set password

Mysqladmin-u root-S / data/3306/mysql.sock password 'qwe123'

Mysql-uroot-pqwe123-S / data/3306/mysql.sock

Mysqladmin-u root-S / data/3307/mysql.sock password 'qwe123'

Mysql-uroot-pqwe123-S / data/3307/mysql.sock

Tip: because mysql has a password, it will be very insecure to be seen by other users, so change the permission to 700. belong to group root.

Find / data-type f-name "mysql"-exec chmod 700 {}\

Find / data-type f-name "mysql"-exec chown root.root {}\

Forbid the use of pkill, kill-9, killall-9 and other commands to forcibly kill the database, which can cause a failure to start.

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