[root@mysqlserver ~]#rm -f /etc/init.d/mysqld

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[root@mysqlserver ~]# mkdir -p /data/{3306,3307}/data

[root@mysqlserver Packages]# rpm -ivh tree-1.5.3-2.el6.x86_64.rpm

warning: tree-1.5.3-2.el6.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID c105b9de: NOKEY

Preparing...         ########################################### [100%]

  1:tree          ########################################### [100%]

[root@mysqlserver Packages]# LANG=EN

[root@mysqlserver Packages]# tree /data

/data

|-- 3306

|  `-- data

`-- 3307

  `-- data

[root@mysqlserver tools]# ls

data    mysql-5.6.36     sendEmail-v1.56.tar.gz

data.zip  mysql-5.6.36.tar.gz  zabbix-2.4.4.tar.gz

[root@mysqlserver tools]# cp data/3306/my.cnf /data/3306/

[root@mysqlserver tools]# cp data/3307/my.cnf /data/3307/

[root@mysqlserver tools]# tree /data

/data

|-- 3306

|  |-- data

|  `-- my.cnf

`-- 3307

  |-- data

  `-- my.cnf

[root@mysqlserver tools]# cp data/3306/mysql /data/3306/

[root@mysqlserver tools]# cp data/3307/mysql /data/3307/

[root@mysqlserver tools]# tree /data

/data

|-- 3306

|  |-- data

|  |-- my.cnf

|  `-- mysql

`-- 3307

  |-- data

  |-- my.cnf

  `-- mysql

[root@mysqlserver tools]# chown -R mysql.mysql /data

[root@mysqlserver tools]# find /data/ -type f -name "mysql" |xargs ls -l

-rw-r--r-- 1 mysql mysql 1307 Jun  3 22:34 /data/3306/mysql

-rw-r--r-- 1 mysql mysql 1307 Jun  3 22:34 /data/3307/mysql

[root@mysqlserver tools]# find /data/ -type f -name "mysql" |xargs chmod +x

[root@mysqlserver tools]# find /data/ -type f -name "mysql" |xargs ls -l

-rwxr-xr-x 1 mysql mysql 1307 Jun  3 22:34 /data/3306/mysql

-rwxr-xr-x 1 mysql mysql 1307 Jun  3 22:34 /data/3307/mysql

[root@mysqlserver tools]# cd /application/mysql/scripts/

[root@mysqlserver scripts]# ls

mysql_install_db  mysqld

[root@mysqlserver scripts]# ./mysql_install_db --basedir=/application/mysql --datadir=/data/3306/data/ --user=mysql

perl: warning: Setting locale failed.

perl: warning: Please check that your locale settings:

    LANGUAGE = (unset),

    LC_ALL = (unset),

    LANG = "EN"

  are supported and installed on your system.

...................

2017-06-03 22:45:23 19995 [Note] Binlog end

2017-06-03 22:45:23 19995 [Note] InnoDB: FTS optimize thread exiting.

2017-06-03 22:45:23 19995 [Note] InnoDB: Starting shutdown...

2017-06-03 22:45:24 19995 [Note] InnoDB: Shutdown completed; log sequence number 1625987

OK

To start mysqld at boot time you have to copy

.........................

[root@mysqlserver scripts]# ./mysql_install_db --basedir=/application/mysql --datadir=/data/3307/data/ --user=mysql

perl: warning: Setting locale failed.

perl: warning: Please check that your locale settings:

    LANGUAGE = (unset),

    LC_ALL = (unset),

...................

[root@mysqlserver tools]# /data/3306/mysql  start

Starting MySQL...

[root@mysqlserver tools]# 170603 22:51:40 mysqld_safe error: log-error set to '/data/3306/mysql_oldboy3306.err', however file don't exists. Create writable for user 'mysql'.

[root@mysqlserver 3306]# touch mysql_oldboy3306.err

[root@mysqlserver 3306]# ls

data  my.cnf  mysql  mysql_oldboy3306.err

[root@mysqlserver 3306]# ll

total 12

drwxr-xr-x 5 mysql mysql 4096 Jun  3 22:45 data

-rw-r--r-- 1 mysql mysql 1899 Jun  3 22:29 my.cnf

-rwxr-xr-x 1 mysql mysql 1307 Jun  3 22:34 mysql

-rw-r--r-- 1 root  root   0 Jun  3 22:52 mysql_oldboy3306.err

[root@mysqlserver 3306]# chown mysql:mysql mysql_oldboy3306.err

[root@mysqlserver 3306]# /data/3306/mysql start

Starting MySQL...

[root@mysqlserver 3306]#netstat -lntup| grep 3306

[root@mysqlserver 3307]# netstat -lntup | grep 330[6-7]

tcp     0    0 :::3306           :::*             LISTEN    28142/mysqld

tcp     0    0 :::3307           :::*             LISTEN    28866/mysqld

報(bào)錯(cuò)：

2017-06-03 22:56:18 24261 [ERROR] InnoDB: auto-extending data file ./ibdata1 is of a different size 768 pages (rounded down to MB) than specified in the .cnf file: initial 8192 pages, max 0 (relevant if non-zero) pages!

2017-06-03 22:56:18 24261 [ERROR] InnoDB: Could not open or create the system tablespace. If you tried to add new data files to the system tablespace, and it failed here, you should now edit innodb_data_file_path in my.cnf back to what it was, and remove the new ibdata files InnoDB created in this failed attempt. InnoDB only wrote those files full of zeros, but did not yet use them in any way. But be careful: do not remove old data files which contain your precious data!

解決：

[root@mysqlserver 3306]# cd data

[root@mysqlserver data]# pwd

/data/3306/data

[root@mysqlserver data]# ls

ibdata1  ib_logfile0  ib_logfile1  mysql  performance_schema  test

[root@mysqlserver data]# rm -rf ib*

報(bào)錯(cuò)：

2017-06-03 23:33:27 26630 [ERROR] /application/mysql/bin/mysqld: unknown variable 'table_cache=614'

2017-06-03 23:33:27 26630 [ERROR] Aborting

解決：

[root@mysqlserver 3306]# vi my.cnf

#table_cache = 614  --注釋掉

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