MYSQL安装无需root权限

 

1.解压安装包

tar -zxvf MysqL-5.7.13-linux-glibc2.5-x86_64.tar.gz

 

2.更改目录名称

mv MysqL-5.7.13-linux-glibc2.5-x86_64 MysqL

 

3.进入MysqL并创建目录

mkdir log tmp var data conf

 

4.把创建的目录用户和用户组更改为hadoop

chown hadoop:hadoop log tmp var data
chown -R hadoop data log var tmp

5.更改my.cnf配置文件

vi /home/hadoop/MysqL/conf/my.cnf

[MysqLd]
user                               = hadoop
port                               = 3306
key_buffer_size                    = 256M
max_allowed_packet                 = 256M
slave_max_allowed_packet           = 256M
table_open_cache                   = 512
sort_buffer_size                   = 2M
net_buffer_length                  = 8K
read_buffer_size                   = 2M
read_rnd_buffer_size               = 512K
myisam_sort_buffer_size            = 64M
thread_cache_size                  = 64
query_cache_size                   = 64M
max_connections                    = 32000
tmp_table_size                     = 128M
long_query_time                    = 3
slow_query_log
innodb_buffer_pool_size            = 7000M  #如果机器只有MysqL，建议设置为物理内存的75%
innodb_flush_log_at_trx_commit     = 0
innodb_flush_method                = O_DIRECT
innodb_file_format                 = barracuda
innodb_log_file_size               = 1G
innodb_log_files_in_group          = 3
character_set_server               = utf8
log_timestamps                     = SYstem
#have_statement_timeout             = NO
############### PATH ##############
basedir                            = /home/hadoop/MysqL
datadir                            = /home/hadoop/MysqL/data
tmpdir                             = /home/hadoop/MysqL/tmp
socket                             = /home/hadoop/MysqL/var/MysqL.sock
pid_file                           = /home/hadoop/MysqL/var/MysqL.pid
general_log_file                   = /home/hadoop/MysqL/log/general.log
innodb_data_home_dir               = /home/hadoop/MysqL/data
slow_query_log_file                = /home/hadoop/MysqL/log/slow.log
log_error                          = /home/hadoop/MysqL/log/error.log
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
[MysqL]
default-character-set = utf8
[client]
default-character-set = utf8

 

6.执行初始化操作

bin/MysqLd --initialize --basedir=/home/hadoop/MysqL/ --datadir=/home/hadoop/MysqL/data --user=hadoop  --socket=/home/hadoop/MysqL/var --port=3306

初始化后会在控制台打印出初始密码，一般就是最后几个字符，先记录下来。

--basedir 指定MysqL安装目录

--datadi  指定data目录

--user   指定用户

--socket  指定socket文件存放位置

--port   指定启动端口

7.启动MysqL服务

nohup bin/MysqLd_safe --defaults-file=/home/hadoop/MysqL/conf/my.cnf --socket=/home/hadoop/MysqL/var/MysqL.sock &

 

8.登陆

bin/MysqL -u root -S/home/hadoop/MysqL/var/MysqL.sock -p

输入刚才记录的初始密码

9.修改密码

set password=password('123456');

 

10.如需使用 MysqL -u -p 方式登陆  需要执行以下操作

ln -s /home/hadoop/MysqL/var/MysqL.sock /tmp/MysqL.sock

 

11.设置环境变量

export MysqL_HOME=/home/hadoop/MysqL
export PATH=$MysqL_HOME/bin:$PATH

 

12.配置远程登陆权限

grant all privileges on *.* to root@'%' identified by '123456';
flush privileges;

查看是否成功

use MysqL;
select host,user from user;

 

如果有root权限 可以设置开机启动

cp support-files/MysqL.server /etc/init.d/MysqL

创建用户

create user 'Meta'@'%' identified by 'Meta2015';

授予权限

grant all on *.* to Meta@'%';