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Centos Mysql5.7 安装

admin

11月 28, 2021

常见问题:

1.安装报错

解决方案:

如果安装mysql出现了以上的报错信息.这是却少numactl这个时候如果是Centos就yum -y install numactl就可以解决这个问题了.
ubuntu的就sudo apt-get install numactl就可以解决这个问题了

1.解压及创建目录
[[email protected] local]# tar xzvf mysql-5.7.11-linux-glibc2.5-x86_64.tar.gz
[[email protected] local]# mv mysql-5.7.11-linux-glibc2.5-x86_64 mysql

[[email protected] local]# mkdir mysql/arch mysql/data mysql/tmp

2.创建my.cnf(见文件)
[[email protected] local]# vi /etc/my.cnf
[client]
port            = 3306
socket          = /usr/local/mysql/data/mysql.sock
default-character-set=utf8mb4

[mysqld]
port            = 3306
socket          = /usr/local/mysql/data/mysql.sock

skip-slave-start

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  = 1739
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 = ROW
log_bin_trust_function_creators=1
log-error  = /usr/local/mysql/data/hostname.err
log-bin = /usr/local/mysql/arch/mysql-bin
expire_logs_days = 7

innodb_write_io_threads=16

relay-log  = /usr/local/mysql/relay_log/relay-log
relay-log-index = /usr/local/mysql/relay_log/relay-log.index
relay_log_info_file= /usr/local/mysql/relay_log/relay-log.info

log_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  = /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
sync_binlog = 500


#for innodb options 
innodb_data_home_dir = /usr/local/mysql/data/
innodb_data_file_path = ibdata1:1G;ibdata2:1G:autoextend

innodb_log_group_home_dir = /usr/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 = 2G
#innodb_additional_mem_pool_size = 50M #deprecated in 5.6
tmpdir = /usr/local/mysql/tmp

innodb_lock_wait_timeout = 1000
#innodb_thread_concurrency = 0
innodb_flush_log_at_trx_commit = 2

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 = 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


3.创建用户组及用户
[[email protected] local]# groupadd -g 101 dba
[[email protected] local]# useradd -u 514 -g dba -G root -d /usr/local/mysql mysqladmin
[[email protected] local]# id mysqladmin
uid=514(mysqladmin) gid=101(dba) groups=101(dba),0(root)

## 一般不需要设置mysqladmin的密码,直接从root或者LDAP用户sudo切换
#[[email protected] local]# passwd mysqladmin
Changing password for user mysqladmin.
New UNIX password: 
BAD PASSWORD: it is too simplistic/systematic
Retype new UNIX password: 
passwd: all authentication tokens updated successfully.


## if user mysqladmin is existing,please execute the following command of usermod.
#[[email protected] local]# usermod -u 514 -g dba -G root -d /usr/local/mysql mysqladmin


4.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
[[email protected] local]# cp /etc/skel/.* /usr/local/mysql  ###important


5.配置环境变量
[[email protected] local]# vi mysql/.bash_profile
# .bash_profile
# Get the aliases and functions

if [ -f ~/.bashrc ]; then
        . ~/.bashrc
fi

# User specific environment and startup programs
export MYSQL_BASE=/usr/local/mysql
export PATH=${MYSQL_BASE}/bin:$PATH


unset USERNAME

#stty erase ^H
set umask to 022
umask 022
PS1=`uname -n`":"'$USER'":"'$PWD'":>"; export PS1

## end

6.赋权限和用户组,切换用户mysqladmin,安装
[[email protected] local]# chown  mysqladmin:dba /etc/my.cnf 
[[email protected] local]# chmod  640 /etc/my.cnf  


[[email protected] local]# chown -R mysqladmin:dba /usr/local/mysql
[[email protected] local]# chmod -R 755 /usr/local/mysql 


7.配置服务及开机自启动
[[email protected] local]# cd /usr/local/mysql
#将服务文件拷贝到init.d下,并重命名为mysql
[[email protected] mysql]# cp support-files/mysql.server /etc/rc.d/init.d/mysql 
#赋予可执行权限
[[email protected] mysql]# chmod +x /etc/rc.d/init.d/mysql
#删除服务
[[email protected] mysql]# chkconfig --del mysql
#添加服务
[[email protected] mysql]# chkconfig --add mysql
[[email protected] mysql]# chkconfig --level 345 mysql on

8.安装libaio及安装mysql的初始db
[[email protected] mysql]# yum -y install libaio
[[email protected] mysql]# sudo su - mysqladmin

hadoop39.ruoze:mysqladmin:/usr/local/mysql:> bin/mysqld 
--defaults-file=/etc/my.cnf 
--user=mysqladmin 
--basedir=/usr/local/mysql/ 
--datadir=/usr/local/mysql/data/ 
--initialize

在初始化时如果加上 –initial-insecure,则会创建空密码的 [email protected] 账号,否则会创建带密码的 [email protected] 账号,密码直接写在 log-error 日志文件中
(在5.6版本中是放在 ~/.mysql_secret 文件里,更加隐蔽,不熟悉的话可能会无所适从)

9.查看临时密码
hadoop39.ruoze:mysqladmin:/usr/local/mysql/data:>cat hostname.err |grep password 
2017-07-22T02:15:29.439671Z 1 [Note] A temporary password is generated for [email protected]: kFCqrXeh2y(0
hadoop39.ruoze:mysqladmin:/usr/local/mysql/data:>


10.启动
/usr/local/mysql/bin/mysqld_safe --defaults-file=/etc/my.cnf &

11.登录及修改用户密码
hadoop39.ruoze:mysqladmin:/usr/local/mysql/data:>mysql -uroot -p'kFCqrXeh2y(0'
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or g.
Your MySQL connection id is 2
Server version: 5.7.11-log

Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.

mysql> alter user [email protected] identified by 'root';
Query OK, 0 rows affected (0.05 sec)

mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'root' ;
Query OK, 0 rows affected, 1 warning (0.02 sec)


mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> exit;
Bye

12.重启
hadoop39.ruoze:mysqladmin:/usr/local/mysql:> service mysql restart

hadoop39.ruoze:mysqladmin:/usr/local/mysql/data:>mysql -uroot -pruozedata
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or g.
Your MySQL connection id is 2
Server version: 5.7.11-log MySQL Community Server (GPL)

Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.

mysql> 

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