问题主要发生在连接数据库时。

问题：MySQL数据库更改密码显示

error: 'Your password does not satisfy the current policy requirements'

解决方法：

select @@validate_password_policy;

SHOW VARIABLES LIKE 'validate_password%';

validate_password_dictionary_file

插件用于验证密码强度的字典文件路径。

validate_password_length

密码最小长度，参数默认为8，它有最小值的限制，最小值为：validate_password_number_count + validate_password_special_char_count + (2 * validate_password_mixed_case_count)

validate_password_mixed_case_count

密码至少要包含的小写字母个数和大写字母个数。

validate_password_number_count

密码至少要包含的数字个数。

validate_password_policy

密码强度检查等级，0/LOW、1/MEDIUM、2/STRONG。有以下取值：

Policy Tests Performed

0 or LOW Length

1 or MEDIUM Length; numeric, lowercase/uppercase, and special characters

2 or STRONG Length; numeric, lowercase/uppercase, and special characters; dictionary file

默认是1，即MEDIUM，所以刚开始设置的密码必须符合长度，且必须含有数字，小写或大写字母，特殊字符。

validate_password_special_char_count

密码至少要包含的特殊字符数。

set global validate_password_mixed_case_count=0;

SET password for 'root'@'localhost'=password('newpassword');

问题：Your database must use 'READ-COMMITTED' as the default isolation level

解决方法：

cat /etc/my.cnf | grep -v "^#" | grep -v "^$"

[mysqld]

init_connect='SET collation_connection = utf8_unicode_ci'

init_connect='SET NAMES utf8'

character-set-server=utf8

collation-server=utf8_unicode_ci

skip-character-set-client-handshake

transaction_isolation = READ-COMMITTED

datadir=/var/lib/mysql

socket=/var/lib/mysql/mysql.sock

symbolic-links=0

log-error=/var/log/mysqld.log

pid-file=/var/run/mysqld/mysqld.pid

问题：Collation error The database collation 'utf8_general_ci' is not supported by Confluence. You need to use 'utf8_bin'.

解决方法：

create database confluence character set utf8 collate utf8_bin;

grant all on confluence.to 'confluenceuser'@'%' identified by 'password' with grant option;

grant all on confluence. to 'confluenceuser'@localhost identified by 'password' with grant option;

flush privileges;

数据库测试：

mysql -u confluenceuser -h localhost -p