这篇文章主要介绍“CentOS6.5下MySQL5.6的安装过程”，在日常操作中，相信很多人在CentOS6.5下MySQL5.6的安装过程问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”CentOS6.5下MySQL5.6的安装过程”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！

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1.切换到/usr/local目录下，上传MySQL的tar包
[root@hadoop001 ~]# cd /usr/local
[root@hadoopnn001 local]# rz

2.检查是否安装过
[root@hadoop001 local]# ps -ef|grep mysqld
root      2493  2423  0 19:48 pts/3    00:00:00 grep mysqld
[root@hadoop0 01 local]# rpm -qa |grep -i mysql

3.解压复制
[root@hadoop001 local]# tar xzvf mysql-5.6.23-linux-glibc2.5-x86_64.tar.gz
[root@hadoopnn001 local]# mv mysql-5.6.23-linux-glibc2.5-x86_64 mysql

4.创建用户组和用户

[root@hadoop001 local]# groupadd -g 101 dba
[root@hadoop001 local]# useradd -u 514 -g dba -G root -d /usr/local/mysql mysqladmin
[root@hadoop001 local]# id mysqladmin
uid=514(mysqladmin) gid=101(dba) groups=101(dba),0(root)
[root@hadoop001 local]# passwd mysqladmin
Changing password for user mysqladmin.
New UNIX password: 
BAD PASSWORD: it is too simplistic/systematic
Retype new UNIX password: 
passwd: all authentication tokens updated successfully.

5.修改用户的执行权限
[root@hadoop001 local]# usermod -u 514 -g dba -G root -d /usr/local/mysql mysqladmin 

6.配置个人环境变量（copy 环境变量配置文件至mysqladmin用户的home目录中）
[root@hadoop001 local]# cp /etc/skel/.* /usr/local/mysql  
cp: omitting directory `/etc/skel/.'
cp: omitting directory `/etc/skel/..'
cp: omitting directory `/etc/skel/.mozilla'

7.vi  /etc/my.cnf ,把下列内容复制进去
(默认： /etc/my.cnf->/etc/mysql/my.cnf->SYSCONFDIR/my.cnf->$MYSQL_HOME/my.cnf-> --defaults-extra-file->~/my.cnf )
[root@hadoop001 ~]# vi /etc/my.cnf

[client]
port            = 3306
socket          = /usr/local/mysql/data/mysql.sock
 
[mysqld]
port            = 3306
socket          = /usr/local/mysql/data/mysql.sock


skip-external-locking
key_buffer_size = 256M
sort_buffer_size = 2M
read_buffer_size = 2M
read_rnd_buffer_size = 4M
query_cache_size= 32M
max_allowed_packet = 16M
myisam_sort_buffer_size=128M
tmp_table_size=32M


table_open_cache = 512
thread_cache_size = 8
wait_timeout = 86400
interactive_timeout = 86400
max_connections = 600


# Try number of CPU's*2 for thread_concurrency
thread_concurrency = 32


#isolation level and default engine 
default-storage-engine = INNODB
transaction-isolation = READ-COMMITTED


server-id  = 1
basedir     = /usr/local/mysql
datadir     = /usr/local/mysql/data
pid-file     = /usr/local/mysql/data/hostname.pid


#open performance schema
log-warnings
sysdate-is-now


binlog_format = MIXED
log_bin_trust_function_creators=1
log-error  = /usr/local/mysql/data/hostname.err
log-bin=/usr/local/mysql/arch/mysql-bin
#other logs
#general_log =1
#general_log_file  = /usr/local/mysql/data/general_log.err
#slow_query_log=1
#slow_query_log_file=/usr/local/mysql/data/slow_log.err


#for replication slave
#log-slave-updates 
#sync_binlog = 1


#for innodb options 
innodb_data_home_dir = /usr/local/mysql/data/
innodb_data_file_path = ibdata1:500M:autoextend
innodb_log_group_home_dir = /usr/local/mysql/arch
innodb_log_files_in_group = 2
innodb_log_file_size = 200M


innodb_buffer_pool_size = 2048M
innodb_additional_mem_pool_size = 50M
innodb_log_buffer_size = 16M


innodb_lock_wait_timeout = 100
#innodb_thread_concurrency = 0
innodb_flush_log_at_trx_commit = 1
innodb_locks_unsafe_for_binlog=1


#innodb io features: add for mysql5.5.8
performance_schema
innodb_read_io_threads=4
innodb-write-io-threads=4
innodb-io-capacity=200
#purge threads change default(0) to 1 for purge
innodb_purge_threads=1
innodb_use_native_aio=on


#case-sensitive file names and separate tablespace
innodb_file_per_table = 1
lower_case_table_names=1


[mysqldump]
quick
max_allowed_packet = 16M


[mysql]
no-auto-rehash


[mysqlhotcopy]
interactive-timeout


[myisamchk]
key_buffer_size = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M

注意：修改innodb_buffer_pool_size的参数

7.第一次安装更改文件归属

[root@hadoop001 local]# chown  mysqladmin:dba /etc/my.cnf 
[root@hadoop001 local]# chmod  640 /etc/my.cnf  
[root@hadoop001 etc]# ll my.cnf
-rw-r----- 1 mysqladmin dba 2201 Aug 25 23:09 my.cnf

[root@hadoop001 local]# chown -R mysqladmin:dba /usr/local/mysql
[root@hadoop001 local]# chmod -R 755 /usr/local/mysql 
[root@hadoop001 local]# su - mysqladmin 
[mysqladmin@hadoop001 ~]$ pwd
/usr/local/mysql
[mysqladmin@hadoop001 ~]$ mkdir arch

8.第一次安装

[mysqladmin@hadoop001 ~]$ scripts/mysql_install_db  --user=mysqladmin --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data 
Installing MySQL system tables..../bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory

[root@hadoop001 local]# cat /proc/version
Linux version 2.6.18-164.11.1.el5 (mockbuild@builder10.centos.org) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-46)) #1 SMP Wed Jan 20 07:32:21 EST 2010

[root@hadoop001 local]# rpm -qa |grep gcc
libgcc-4.1.2-46.el5_4.2
libgcc-4.1.2-46.el5_4.2
[root@hadoop001 local]# yum -y install libaio

9再次安装
[mysqladmin@hadoop001 ~]$ scripts/mysql_install_db  --user=mysqladmin --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data 
Installing MySQL system tables...2015-08-25 22:49:02 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2015-08-25 22:49:02 11713 [Note] InnoDB: Using atomics to ref count buffer pool pages
2015-08-25 22:49:02 11713 [Note] InnoDB: The InnoDB memory heap is disabled
2015-08-25 22:49:02 11713 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2015-08-25 22:49:02 11713 [Note] InnoDB: Memory barrier is not used
2015-08-25 22:49:02 11713 [Note] InnoDB: Compressed tables use zlib 1.2.3
2015-08-25 22:49:02 11713 [Note] InnoDB: Using Linux native AIO
2015-08-25 22:49:02 11713 [Note] InnoDB: Using CPU crc32 instructions
2015-08-25 22:49:02 11713 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2015-08-25 22:49:02 11713 [Note] InnoDB: Completed initialization of buffer pool
2015-08-25 22:49:02 11713 [Note] InnoDB: The first specified data file ./ibdata1 did not exist: a new database to be created!
2015-08-25 22:49:02 11713 [Note] InnoDB: Setting file ./ibdata1 size to 12 MB
2015-08-25 22:49:02 11713 [Note] InnoDB: Database physically writes the file full: wait...
2015-08-25 22:49:03 11713 [Note] InnoDB: Setting log file ./ib_logfile101 size to 48 MB
2015-08-25 22:49:07 11713 [Note] InnoDB: Setting log file ./ib_logfile1 size to 48 MB
2015-08-25 22:49:12 11713 [Note] InnoDB: Renaming log file ./ib_logfile101 to ./ib_logfile0
2015-08-25 22:49:12 11713 [Warning] InnoDB: New log files created, LSN=45781
2015-08-25 22:49:12 11713 [Note] InnoDB: Doublewrite buffer not found: creating new
2015-08-25 22:49:12 11713 [Note] InnoDB: Doublewrite buffer created
2015-08-25 22:49:12 11713 [Note] InnoDB: 128 rollback segment(s) are active.
2015-08-25 22:49:12 11713 [Warning] InnoDB: Creating foreign key constraint system tables.
2015-08-25 22:49:12 11713 [Note] InnoDB: Foreign key constraint system tables created
2015-08-25 22:49:12 11713 [Note] InnoDB: Creating tablespace and datafile system tables.
2015-08-25 22:49:12 11713 [Note] InnoDB: Tablespace and datafile system tables created.
2015-08-25 22:49:12 11713 [Note] InnoDB: Waiting for purge to start
2015-08-25 22:49:12 11713 [Note] InnoDB: 5.6.23 started; log sequence number 0
2015-08-25 22:49:13 11713 [Note] Binlog end
2015-08-25 22:49:13 11713 [Note] InnoDB: FTS optimize thread exiting.
2015-08-25 22:49:13 11713 [Note] InnoDB: Starting shutdown...
2015-08-25 22:49:15 11713 [Note] InnoDB: Shutdown completed; log sequence number 1625977
OK


Filling help tables...2015-08-25 22:49:15 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2015-08-25 22:49:15 11735 [Note] InnoDB: Using atomics to ref count buffer pool pages
2015-08-25 22:49:15 11735 [Note] InnoDB: The InnoDB memory heap is disabled
2015-08-25 22:49:15 11735 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2015-08-25 22:49:15 11735 [Note] InnoDB: Memory barrier is not used
2015-08-25 22:49:15 11735 [Note] InnoDB: Compressed tables use zlib 1.2.3
2015-08-25 22:49:15 11735 [Note] InnoDB: Using Linux native AIO
2015-08-25 22:49:15 11735 [Note] InnoDB: Using CPU crc32 instructions
2015-08-25 22:49:15 11735 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2015-08-25 22:49:15 11735 [Note] InnoDB: Completed initialization of buffer pool
2015-08-25 22:49:15 11735 [Note] InnoDB: Highest supported file format is Barracuda.
2015-08-25 22:49:15 11735 [Note] InnoDB: 128 rollback segment(s) are active.
2015-08-25 22:49:15 11735 [Note] InnoDB: Waiting for purge to start
2015-08-25 22:49:15 11735 [Note] InnoDB: 5.6.23 started; log sequence number 1625977
2015-08-25 22:49:15 11735 [Note] Binlog end
2015-08-25 22:49:15 11735 [Note] InnoDB: FTS optimize thread exiting.
2015-08-25 22:49:15 11735 [Note] InnoDB: Starting shutdown...
2015-08-25 22:49:17 11735 [Note] InnoDB: Shutdown completed; log sequence number 1625987
OK

10.配置mysql服务和部署自动启动

[root@hadoop001 ~]# cd /usr/local/mysql
#将服务文件拷贝到init.d下，并重命名为mysql
[root@hadoop001 mysql]# cp support-files/mysql.server /etc/rc.d/init.d/mysql 
#赋予可执行权限
[root@hadoop001 mysql]# chmod +x /etc/rc.d/init.d/mysql
#删除服务
[root@sht-sgmhadoopnn-01 mysql]# chkconfig --del mysql
#添加服务
[root@0hadoop001 mysql]# chkconfig --add mysql
[root@hadoop001 mysql]# chkconfig --level 345 mysql on

11.Start mysql and to view process and listening

[root@hadoop001 mysql]# su - mysqladmin
[mysqladmin@hadoop001 ~]$ pwd
/usr/local/mysql
[mysqladmin@hadoop001 ~]$ rm -rf my.cnf
[mysqladmin@sht-sgmhadoopnn-01 ~]$ bin/mysqld_safe &    

先卸载
[root@rzdatahadoop001 lib]# rpm --nodeps -e mysql-libs-5.1.71-1.el6.x86_64
改权限
[root@rzdatahadoop001 mysql]# chmod -R 757 /var/log 

[mysqladmin@sht-sgmhadoopnn-01 ~]$ 150825 22:53:38 mysqld_safe Logging to '/usr/local/mysql/data/hostname.err'.
150825 22:53:38 mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql/data/
150825 22:53:39 mysqld_safe mysqld from pid file /usr/local/mysql/data/hostname.pid ended

14. 启动服务
[mysqladmin@hadoop001 ~]$ ps -ef|grep mysqld
514       6247  6219  0 17:30 pts/1    00:00:00 /bin/sh /usr/local/mysql/bin/mysqld_safe
514       6902  6247  2 17:30 pts/1    00:00:01 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --plugin-dir=/usr/local/mysql/lib/plugin --log-error=/usr/local/mysql/data/hostname.err --pid-file=/usr/local/mysql/data/hostname.pid --socket=/usr/local/mysql/data/mysql.sock --port=3306
514       6927  6219  0 17:31 pts/1    00:00:00 grep mysqld


[mysqladmin@hadoop001 ~]$ netstat -tulnp | grep mysql
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
tcp        0      0 :::3306                     :::*                        LISTEN      11541/mysqld        


[root@sht-sgmhadoopnn-01 local]# service mysql status
MySQL running (21507)                                      [  OK  ]


15.登录
[mysqladmin@sht-sgmhadoopnn-01 ~]$ mysql
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.6.23-log MySQL Community Server (GPL)


Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.


Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.


Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.


mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| test               |
+--------------------+
4 rows in set (0.00 sec)

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