将jdk，mysql解压
1注意解压后，jdk的所属用户和用户组可能要修改
[root@hadoop000 java]# ll
total 169220
drwxr-xr-x. 8 uucp 143 4096 Apr 11 2015 jdk1.8.0_45
-rw-r--r--. 1 root root 173271626 Oct 24 17:25 jdk-8u45-linux-x64.gz
[root@hadoop000 java]# chown -R root:root jdk1.8.0_45/
2配置java环境文件/etc/profile,生效
[root@hadoop000 java]# vi /etc/profile
[root@hadoop000 java]# source /etc/profile
[root@hadoop000 java]# which java
/usr/java/jdk1.8.0_45/bin/java
[root@hadoop000 java]# java -version
java version "1.8.0_45"
3如果不熟悉环境，可以先检查一下mysql有没有被安装过
[root@hadoop000 java]# ps -ef|grep mysqld
root 2580 2428 0 16:09 pts/2 00:00:00 grep mysqld
[root@hadoop000 java]# rpm -qa | grep -i mysql
mysql-libs-5.1.71-1.el6.x86_64
4创建mysql用户和组
[root@hadoop000 local]# groupadd -g 101 dba
[root@hadoop000 local]# useradd -u 514 -g dba -G root -d /usr/local/mysql mysqladmin
useradd: warning: the home directory already exists.
Not copying any file from skel directory into it.
[root@hadoop000 local]# id mysqladmin
uid=514(mysqladmin) gid=101(dba) groups=101(dba),0(root)
[root@hadoop000 local]# usermod -u 514 -g dba -G root -d /usr/local/mysql mysqladmin
这里先指定组名和对应的数字，514指的是创建的用户id就是514，-g指定用户的主组，-G副组，-d用户创建之后的家目录，用户名称叫做mysqladmin。这里的警告是丢失环境变量文件。
usermod是用户已存在，修改一下。
5复制环境配置文件到mysqladmin用户的home目录
[root@hadoop000 local]# cp /etc/skel/.* /usr/local/mysql
cp: omitting directory `/etc/skel/.'
cp: omitting directory `/etc/skel/..'
cp: omitting directory `/etc/skel/.gnome2'
cp: omitting directory `/etc/skel/.mozilla'
6创建mysql配置文件 /etc/my.cnf(640) 这个是权限
[root@hadoop000 local]# cd /etc/
[root@hadoop000 etc]# touch my.cnf
[root@hadoop000 etc]# vi my.cnf
注意：没进入编辑模式粘贴代码会丢失第一行头几个字母
[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
修改:
innodb_buffer_pool_size = 1024M
7修改配置文件的用户和用户组
[root@hadoop000 etc]# chown mysqladmin:dba /etc/my.cnf
[root@hadoop000 etc]# chmod 640 /etc/my.cnf
[root@hadoop000 etc]# ll my.cnf
-rw-r-----. 1 mysqladmin dba 2219 Oct 28 18:51 my.cnf
修改家目录的
[root@hadoop000 etc]# chown -R mysqladmin:dba /usr/local/mysql
[root@hadoop000 etc]# chmod -R 755 /usr/local/mysql
切换看下
[root@hadoop000 etc]# su - mysqladmin
[mysqladmin@hadoop000 ~]$ pwd
/usr/local/mysql
8创建binlog文件，并安装libaio包
[mysqladmin@hadoop000 ~]$ mkdir arch
[mysqladmin@hadoop000 ~]$ yum -y install libaio
[mysqladmin@hadoop000 ~]$ scripts/mysql_install_db --user=mysqladmin --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data
9设置mysql服务开机自启动等
[root@hadoop000 local]# cd /usr/local/mysql
[root@hadoop000 mysql]# cp support-files/mysql.server /etc/rc.d/init.d/mysql
[root@hadoop000 mysql]# chmod +x /etc/rc.d/init.d/mysql
[root@hadoop000 mysql]# chkconfig --del mysql
[root@hadoop000 mysql]# chkconfig --add mysql
[root@hadoop000 mysql]# chkconfig mysql on
[root@hadoop000 mysql]# vi /etc/rc.local
增加一句
su - mysqladmin -c "/etc/init.d/mysql start --federated"
10
删了mysql下的my.cnf，因为我们配置的再etc目录下
[mysqladmin@hadoop000 ~]$ rm -rf my.cnf
个人环境变量配置
[mysqladmin@hadoop000 ~]$ vi .bash_profile
里面加入
export MySQL_HOME=/usr/local/mysql
export PATH=$ MYSQL_HOME/bin:$ PATH
退出重进
[mysqladmin@hadoop000 ~]$ exit
logout
There are stopped jobs.
[mysqladmin@hadoop000 ~]$ su -mysqladmin
su: invalid option -- 'y'
Try `su --help' for more information.
[root@hadoop000 etc]# su - mysqladmin
[mysqladmin@hadoop000 ~]$ echo $ MYSQL_HOME
/usr/local/mysql
[mysqladmin@hadoop000 ~]$ mysqld_safe &
[1] 6337
查下进程端口号等
[mysqladmin@hadoop000 ~]$ ps -ef|grep mysqld
514 3448 1 0 Oct28 pts/2 00:00:00 /bin/sh /usr/local/mysql/bin/mysqld_safe
[mysqladmin@hadoop000 ~]$ netstat -nlp|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 4091/mysqld
unix 2 [ ACC ] STREAM LISTENING 35117 4091/mysqld /usr/local/mysql/data/mysql.sock
[root@hadoop000 mysql]# service mysql status
MySQL running (4091) [ OK ]
11
进入mysql
[mysqladmin@hadoop000 ~]$ mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.00 sec)
12
设置mysql账号密码
mysql> use mysql;
Database changed
查看当前database
mysql> select database();
+------------+
| database() |
+------------+r
| mysql |
+------------+
看下有那些表
show tables;
mysql> select user,password,host from user;
+------+----------+-----------+
| user | password | host |
+------+----------+-----------+
| root | | localhost |
| root | | hadoop000 |
| root | | 127.0.0.1 |
| root | | ::1 |
| | | localhost |
| | | hadoop000 |
+------+----------+-----------+
6 rows in set (0.00 sec)
mysql> update user set password=password('123456')where user='root';
Query OK, 4 rows affected (0.00 sec)
Rows matched: 4 Changed: 4 Warnings: 0
mysql> select user,password,host from user;
+------+-------------------------------------------+-----------+
| user | password | host |
+------+-------------------------------------------+-----------+
| root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 | localhost |
mysql> delete from user where user='';
Query OK, 2 rows affected (0.00 sec)
刷新权限
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
重进要密码
[mysqladmin@hadoop000 ~]$ mysql -uroot -p123456
创建db，给用户赋予查看db的权限
mysql> create database ruozedb;
Query OK, 1 row affected (0.00 sec)
给ruoze这个用户（可以通过什么ip）赋予所有权限争对ruozedb里的所有表
mysql> grant all privileges on ruozedb.* to ruoze@'127.0.0.1' identified by '123456';
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
注意这里因为上面是127，这里也要赋值
[mysqladmin@hadoop000 ~]$ mysql -uruoze -p123456 -h127.0.0.1
因为之后要去win装mysql图形化界面，所以这里还是
这样不管是哪里的ip都能连数据库
mysql> update user set host='%' where user='ruoze';
mysql> flush privileges;
用dbeaver连接报错
查看下，有问题
mysql> show grants for 'ruoze'@'%';
据说是由于修改ip导致不识别，需要配置网卡
window–VM8–>linux mysql
192.168.137.1
这里需要补充一下知识，关于网段和普通ip，如果公司电脑的ip是变化的，可以将账户的ip设置成一个网段
172.16.110.100 mysql
‘user’@‘172.16.110.0’ 网段
注意生产连接的时候，-p之后不直接输入密码，会泄露。-p时密码，-P是端口号。
删了重搞
mysql> drop user ruoze@'%'
-> ;
mysql> grant all privileges on ruozedb.* to ruoze@'%' identified by '123456';