【1】Can't initialize character set utf8] (path: /usr/share/mysql/charsets/)
【1.1】
報錯信息：
mysql: Character set 'utf8]' is not a compiled character set and is not specified in the '/usr/share/mysql/charsets/Index.xml' file
mysql: Character set 'utf8]' is not a compiled character set and is not specified in the '/usr/share/mysql/charsets/Index.xml' file
ERROR 2019 (HY000): Can't initialize character set utf8] (path: /usr/share/mysql/charsets/)
mysql: Character set 'utf8]' is not a compiled character set and is not specified in the '/usr/share/mysql/charsets/Index.xml' file
ERROR 2019 (HY000): Can't initialize character set utf8] (path: /usr/share/mysql/charsets/)
【1.2】驗證文件字符集，驗證mysql支持的字符集；
查看字符串是否是mysql支持的，比如把文件放到notpad++中去查看。
或者進入mysql，查看Mysql支持的字符集有哪些（show charset;）
文件字符集：
【1.3】usr/share/mysql/charsets/Index.xml
文件：usr/share/mysql/charsets/Index.xml ，看這個文件好像並沒有什么卵用。
一看就知道，無法識別解析字符，看看配置文件
【1.4】my.cnf
果然，客戶端字符集設置有問題，修改好后，解決問題。
這里因為是 [client]的問題，所以不需要重啟mysql，大家可以試試，實在不行再重啟 Mysql。
【2】Character set 'utf-8' is not a compiled character set and is not specified
當出現“Character set 'utf-8' is not a compiled character set and is not specifie”的錯誤時，
將mysql安裝目錄下的my.ini文件的default-character-set=utf-8更改為default-character-set=utf8即可，
簡單來說就是將"utf-8"更改為"utf8"即可。
【3】Mysql：Character set 'utf8mb4' is not a compiled character set ... 解決方案
連接Mysql時出現如下錯誤
Mysql：Character set 'utf8mb4' is not a compiled character set and is not specified in the '/usr/share/mysql/charsets/Index.xml' file
解決方法如下：
打開文件/usr/share/mysql/charsets/Index.xml
直接復制文件中utf8的配置，改為utf8mb4后，添加到文件中故障解決，更改方式如下
<charset name="utf8mb4"> <family>Unicode</family> <description>UTF-8 Unicode</description> <alias>utf-8</alias> <collation name="utf8_general_ci" id="33"> <flag>primary</flag> <flag>compiled</flag> </collation> <collation name="utf8_bin" id="83"> <flag>binary</flag> <flag>compiled</flag> </collation> </charset>
參考文件
字符集問題： https://blog.csdn.net/ACMAIN_CHM/article/details/4174186Character set 'utf8mb4' is not a compiled：https://blog.51cto.com/yangjingangel/1754413