mysql5.7版本安装部署详细步骤

服务器版本为centos7

最新版mysql下载地址：MySQL :: Download MySQL Community Server

现在的服务器应该都支持64位了，下载64位即可

1.首先新建文件夹，并进入该文件夹，将下载好的mysql文件上传至此文件夹，

mkdir /local && cd /local

2.解压及创建目录

tar -zxvf mysql-5.7.36-linux-glibc2.12-x86_64.tar.gz

mv mysql-5.7.36-linux-glibc2.12-x86_64 mysql

mkdir mysql/arch mysql/data mysql/tmp

3.编辑my.cnf文件

[client]
port            = 3306
socket          = /local/mysql/data/mysql.sock
default-character-set=utf8mb4[mysqld]
port            = 3306
socket          = /local/mysql/data/mysql.sockskip-slave-startskip-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=32Mtable_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-COMMITTEDserver-id  = 1739
basedir     = /local/mysql
datadir     = /local/mysql/data
pid-file     = /local/mysql/data/hostname.pid#open performance schema
log-warnings
sysdate-is-nowbinlog_format = ROW
log_bin_trust_function_creators=1
log-error  = /local/mysql/data/hostname.err
log-bin = /local/mysql/arch/mysql-bin
expire_logs_days = 30innodb_write_io_threads=16relay-log  = /local/mysql/relay_log/relay-log
relay-log-index = /local/mysql/relay_log/relay-log.index
relay_log_info_file= /local/mysql/relay_log/relay-log.infolog_slave_updates=1
gtid_mode=OFF
enforce_gtid_consistency=OFF# slave
slave-parallel-type=LOGICAL_CLOCK
slave-parallel-workers=4
master_info_repository=TABLE
relay_log_info_repository=TABLE
relay_log_recovery=ON#other logs
#general_log =1
#general_log_file  = /local/mysql/data/general_log.err
#slow_query_log=1
#slow_query_log_file=/local/mysql/data/slow_log.err#for replication slave
sync_binlog = 500#for innodb options
innodb_data_home_dir = /local/mysql/data/
innodb_data_file_path = ibdata1:1G;ibdata2:1G:autoextendinnodb_log_group_home_dir = /local/mysql/arch
innodb_log_files_in_group = 4
innodb_log_file_size = 1G
innodb_log_buffer_size = 200M#根据生产需要，调整pool size
innodb_buffer_pool_size = 8G
#innodb_additional_mem_pool_size = 50M #deprecated in 5.6
tmpdir = /local/mysql/tmpinnodb_lock_wait_timeout = 1000
#innodb_thread_concurrency = 0
innodb_flush_log_at_trx_commit = 2innodb_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 = 128M[mysql]
no-auto-rehash
default-character-set=utf8mb4[mysqlhotcopy]
interactive-timeout[myisamchk]
key_buffer_size = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M

4.创建用户组及用户

groupadd -g 101 dba

useradd -u 514 -g dba -G root -d /local/mysql mysqladmin

id mysqladmin

5.copy 环境变量配置文件至mysqladmin用户的home目录中,为了以下步骤配置个人环境变量

cp /etc/skel/.* /local/mysql

6.配置环境变量，增加两行

vim /local/mysql/.bash_profile

export MYSQL_BASE=/local/mysql
export PATH=${MYSQL_BASE}/bin:$PATH

7.赋权限和用户组，

chown  mysqladmin:dba /etc/my.cnf

chmod  640 /etc/my.cnf

chown -R mysqladmin:dba /local/mysql

chmod -R 755 /local/mysql

8.配置服务及开机自启动

cd /local/mysql

#将服务文件拷贝到init.d下，并重命名为mysql

cp support-files/mysql.server /etc/rc.d/init.d/mysql

#赋予可执行权限

chmod +x /etc/rc.d/init.d/mysql

#删除服务

chkconfig --del mysql

#添加服务

chkconfig --add mysql

chkconfig --level 2345 mysql on

9.安装libaio及安装mysql的初始db

yum -y install libaio

./bin/mysqld   --defaults-file=/etc/my.cnf  --user=mysqladmin  --basedir=/local/mysql/ --datadir=/local/mysql/data/ --initialize

#在初始化时如果加上 –initial-insecure，则会创建空密码的 root@localhost 账号，否则会创建带密码的 root@localhost 账号，密码直接写在 log-error 日志文件中

10.查看临时密码

cat /local/mysql/data/hostname.err |grep password

11.启动mysql

#切换用户

sudo su - mysqladmin

#启动mysql

 service mysql start

12.登录及修改用户密码

#密码在第10个步骤

mysql -uroot -p

alter user root@localhost identified by 'passwdinfo';

 GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'passwdinfo' ;

flush privileges;

exit;

13.重启

service mysql restart

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