.目录规划：
程序目录：/usr/local/mysql
数据目录：/data/mysql
PID和SOCKET文件位置：/tmp
.文件下载：
官方默认只提供最新版本的，历史版本的下载地址：
https://downloads.mysql.com/archives/
.7.22版本下载：
# wget https://cdn.mysql.com/archives/mysql-5.7/mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz
文件下载大小约614M。
#tar -xzf mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz -C /usr/local/
#mv /usr/local/mysql-5.7.22-linux-glibc2.12-x86_64/ /usr/local/mysql
# echo "export PATH=$PATH:/usr/local/mysql/bin" >/etc/profile.d/mysql.sh
# source /etc/profile.d/mysql.sh
.创建用户和授权：
#useradd mysql
#passwd mysql
#mkdir -p /data/mysql
#chown -R mysql:mysql /data/mysql
#chmod -R 755 /data/mysql
.设置参数：
[mysqld]
#basic
#skip-grant-tables 
#validate_password        =OFF
datadir             = /data/mysql
port              = 3306
pid-file            = /tmp/mysql.pid
socket             = /tmp/mysql.sock
log_error            = error.log
slow-query-log         = 1
slow-query-log-file      = slow.log
long_query_time        = 0.2
log-bin            = mysql_bin.log
binlog_format         = ROW
expire-logs-days        = 1
relay-log           = mysql_relay.log
relay_log_recovery       = 1
general_log          = on
general_log_file        = general.log
lower_case_table_names     = 1
server-id            = 1
character_set_client_handshake = FALSE
character_set_server      = utf8mb4
collation_server        = utf8mb4_unicode_ci
init_connect          ='SET NAMES utf8mb4'
interactive_timeout       = 172800
wait_timeout          = 172800
max_prepared_stmt_count     =1048576 
max_connections         = 8000
#connections
 max_connections=4000
 key_buffer_size=200M
 low_priority_updates=1
 table_open_cache = 8000
 back_log=1500
 query_cache_type=0
 table_open_cache_instances=16
#files
 innodb_file_per_table =on
 innodb_log_file_size=1024M
 innodb_log_files_in_group = 3
 innodb_open_files=4000
#buffers
innodb_buffer_pool_size=1G
innodb_buffer_pool_instances=32
#innodb_additional_mem_pool_size=20M
innodb_log_buffer_size=64M
join_buffer_size=32K
sort_buffer_size=32K
#innodb
innodb_checksums=0
innodb_doublewrite=0
innodb_support_xa=0
innodb_thread_concurrency=0
innodb_flush_log_at_trx_commit=2
innodb_max_dirty_pages_pct=50
innodb_use_native_aio=1
innodb_stats_persistent = 1
#innodb_spin_wait_delay= 6 / 96
#performance
innodb_adaptive_flushing = 1
innodb_flush_neighbors = 0
innodb_read_io_threads = 4
innodb_write_io_threads = 4
innodb_io_capacity = 4000
innodb_purge_threads=1
innodb_adaptive_hash_index=0
#monitor
innodb_monitor_enable = '%'
performance_schema=OFF
[mysql]
user = root
.初始化数据库实例：
/usr/local/mysql/bin/mysqld --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql --initialize-insecure
.启动：
# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
# /etc/init.d/mysql start
Starting MySQL... SUCCESS! 
.验证和设置远程访问：
[root@node1 soft]# mysql -p -S /tmp/mysql.sock
mysql> grant all privileges on *.* to root@'%' identified by 'oracle' with grant option;
Query OK, 0 rows affected, 1 warning (0.01 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

update mysql.user set authentication_string=password('newpwd'),password_expired='N' where user='root';

-- 开启远程连接权限
grant all on *.* to root@'%' identified by 'newpwd' with grant option;
flush privileges;