MESSAGE: Native table 'performance_schema'.'session_variables' has the wrong structure

--从mysql5.7.6开始information_schema.global_status已经开始被舍弃，为了兼容性，此时需要打开 show_compatibility_56

2）character_set_database ， collation_database  Value改为utf8，修改my.conf

[client]
default-character-set=utf8 
[mysqld]
character-set-server=utf8