linux安装mysql5.7.22配置文件my.cnf配置细节及修改密码时出现的问题解决

[client]

socket=/usr/local/tools/mysql/mysql.sock

[mysqld]

lower_case_table_names=1

# remove leading # and set to the amount of ram for the most important data

# cache in mysql. start at 70% of total ram for dedicated server, else 10%.

# innodb_buffer_pool_size = 128m

# remove leading # to turn on a very important data integrity option: logging

# changes to the binary log between backups.

# log_bin

# these are commonly set, remove the # and set as required.

basedir = /usr/local/tools/mysql

datadir = /usr/local/tools/mysql/data

port = xxxx

# server_id = .....

socket = /usr/local/tools/mysql/mysql.sock

# remove leading # to set options mainly useful for reporting servers.

# the server defaults are faster for transactions and fast selects.

# adjust sizes as needed, experiment to find the optimal values.

# join_buffer_size = 128m

# sort_buffer_size = 2m

# read_rnd_buffer_size = 2m

explicit_defaults_for_timestamp=true

sql_mode=no_engine_substitution,strict_trans_tables,no_auto_create_user,no_zero_date,no_zero_in_date,error_for_division_by_zero3

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修改密码出问题时，解决办法：

mysql -u root -p v:ahlhqskkd2+>提示(中间重启的一次mysql，可能是重启的原因，正常情况下是可以登录的)

your password has expired. to log in you must change it using a client that supports expired passwords

在*找到了解决方法，连接地址：https://*.com/questions/33387879/mysql-password-expired-cant-connect

解决办法：

[root@localhost bin]# ./mysqladmin -uroot -p password

enter password: //这里输入上面的v

new password: //重新输入新密码

confirm new password: //重新输入新密码

问题解决!