CentOS 7上安装mysql-5.7.23

1系统约定
Mysql目录安装位置：/export/servers/mysql-5.7.23
数据库保存位置：/export/servers/mysql-5.7.23/data/
日志保存位置：/export/servers/mysql-5.7.23/log/

2下载mysql-5.7.23-el7-x86_64.tar.gz

官网地址：https://dev.mysql.com/downloads/mysql/5.7.html#downloads

  Compressed TAR Archive 

  (mysql-5.7.23-el7-x86_64.tar.gz)

3解压压缩包到目标位置

 #tar -zxvf  mysql-5.7.23-el7-x86_64.tar.gz -C /export/servers/    --解压压缩包

 #mv mysql-5.7.23-el7-x86_64  mysql-5.7.23    --重命名文件夹

4新建mysql用户、组

 # groupadd mysql


 # useradd -r -g mysql mysql

5在mysql_home 创建目录

  #mkdir  ./data

  #mkdir ./log

  #mkdir ./tmp

  #chown -R777 mysql:mysql /export/servers/mysql-5.7.23/

6配置mysql 配置文件 

#vi /etc/my.cnf

修改：

[client]
port = 3306
socket = /export/servers/mysql-5.7.23/tmp/mysql3306.sock

[mysql]
prompt="\u@\h [\d]>"
no-auto-rehash

[mysqld]
user = mysql
bind-address = 0.0.0.0
port = 3306
basedir = /export/servers/mysql-5.7.23
datadir =/export/servers/mysql-5.7.23/data
tmpdir = /export/servers/mysql-5.7.23/tmp
socket =/export/servers/mysql-5.7.23/tmp/mysql3306.sock
pid-file = mysqldb1.pid
character-set-server = utf8mb4
skip_name_resolve = 1
open_files_limit = 65535
back_log = 1024
max_connections = 512
max_connect_errors = 1000000
table_open_cache = 1024
table_definition_cache = 1024
table_open_cache_instances = 64
thread_stack = 512K
external-locking = FALSE
max_allowed_packet = 32M
sort_buffer_size = 4M
join_buffer_size = 4M
thread_cache_size = 768
interactive_timeout = 600
wait_timeout = 600
tmp_table_size = 32M
max_heap_table_size = 32M
slow_query_log = 1
slow_query_log_file = /export/servers/mysql-5.7.23/log/slow.log
log-error =/export/servers/mysql-5.7.23/log/error.log
long_query_time = 0.1
log_queries_not_using_indexes =1
log_throttle_queries_not_using_indexes = 60
min_examined_row_limit = 100
log_slow_admin_statements = 1
log_slow_slave_statements = 1
server-id = 1003306
log-bin =/export/servers/mysql-5.7.23/log/my3306_binlog
sync_binlog = 1
binlog_cache_size = 4M
max_binlog_cache_size = 2G
max_binlog_size = 1G
expire_logs_days = 7
master_info_repository = TABLE
relay_log_info_repository = TABLE
gtid_mode = on
enforce_gtid_consistency = 1
log_slave_updates
binlog_format = row
binlog_checksum = 1
relay_log_recovery = 1
relay-log-purge = 1
key_buffer_size = 32M
read_buffer_size = 8M
read_rnd_buffer_size = 4M
bulk_insert_buffer_size = 64M
myisam_sort_buffer_size = 128M
myisam_max_sort_file_size = 10G
myisam_repair_threads = 1
lock_wait_timeout = 3600
explicit_defaults_for_timestamp = 1
innodb_thread_concurrency = 0
innodb_sync_spin_loops = 100
innodb_spin_wait_delay = 30

transaction_isolation = REPEATABLE-READ
#innodb_additional_mem_pool_size = 16M
innodb_buffer_pool_size = 2867M
innodb_buffer_pool_instances = 8
innodb_buffer_pool_load_at_startup = 1
innodb_buffer_pool_dump_at_shutdown = 1
innodb_data_file_path = ibdata1:1G:autoextend
innodb_flush_log_at_trx_commit = 1
innodb_log_buffer_size = 32M
innodb_log_file_size = 2G
innodb_log_files_in_group = 2
innodb_max_undo_log_size = 4G
innodb_undo_directory = undolog
innodb_undo_tablespaces = 95

# 根据您的服务器IOPS能力适当调整
# 一般配普通SSD盘的话，可以调整到 10000 - 20000
# 配置高端PCIe SSD卡的话，则可以调整的更高，比如 50000 - 80000
innodb_io_capacity = 4000
innodb_io_capacity_max = 8000
innodb_flush_neighbors = 0
innodb_write_io_threads = 8
innodb_read_io_threads = 8
innodb_purge_threads = 4
innodb_page_cleaners = 4
innodb_open_files = 65535
innodb_max_dirty_pages_pct = 50
innodb_flush_method = O_DIRECT
innodb_lru_scan_depth = 4000
innodb_checksum_algorithm = crc32
innodb_lock_wait_timeout = 10
innodb_rollback_on_timeout = 1
innodb_print_all_deadlocks = 1
innodb_file_per_table = 1
innodb_online_alter_log_max_size = 4G
internal_tmp_disk_storage_engine = InnoDB
innodb_stats_on_metadata = 0

# some var for MySQL 5.7
innodb_checksums = 1
#innodb_file_format = Barracuda
#innodb_file_format_max = Barracuda
query_cache_size = 0
query_cache_type = 0
innodb_undo_logs = 128

innodb_status_file = 1
# 注意: 开启 innodb_status_output & innodb_status_output_locks 后, 可能会导致log-error文件增长较快
innodb_status_output = 0
innodb_status_output_locks = 0

#performance_schema
performance_schema = 1
performance_schema_instrument = '%=on'

#innodb monitor
innodb_monitor_enable="module_innodb"
innodb_monitor_enable="module_server"
innodb_monitor_enable="module_dml"
innodb_monitor_enable="module_ddl"
innodb_monitor_enable="module_trx"
innodb_monitor_enable="module_os"
innodb_monitor_enable="module_purge"
innodb_monitor_enable="module_log"
innodb_monitor_enable="module_lock"
innodb_monitor_enable="module_buffer"
innodb_monitor_enable="module_index"
innodb_monitor_enable="module_ibuf_system"
innodb_monitor_enable="module_buffer_page"
innodb_monitor_enable="module_adaptive_hash"

[mysqldump]
quick
max_allowed_packet = 32M

7修改系统配置文件

#cd /export/servers/mysql-5.7.23/support-files

# cp mysql.server /etc/init.d/mysql

8初始化数据库

 #bin/mysqld --initialize --user=mysql

 提示会生成root的临时密码,登录时需要

 #bin/mysql_ssl_rsa_setup

9启动mysql

# /etc/init.d/mysql start

--登陆

# mysql  -uroot -p

--输入第8步生成的临时密码

--查看表

mysql> use mysql;
mysql> select host,user from user;

--修改密码

mysql> set password=password('hadoop');  没有password列 ，用authentication_string替代password

--设置root账户的host地址（修改了才可以远程连接）

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

--   防火墙放行3306端口【测试都把防火墙关了】

firewall-cmd --zone=public --add-port=3306/tcp --permanent

service firewalld restart

10添加系统路径
# vi /etc/profile
添加：
export PATH=/export/servers/mysql-5.7.23/bin:$PATH

# source /etc/profile

11配置mysql自动启动
# chmod 755 /etc/init.d/mysql
# chkconfig --add mysql
# chkconfig --level 345 mysql on