MySQL 错误 报错：Table ‘performance_schema.session_variables’ Doesn’t Exist

mysqldump -uroot -p ca>ca.sql
Enter password: 
mysqldump: Couldn't execute 'SHOW VARIABLES LIKE 'gtid\_mode'': Table 'performance_schema.session_variables' doesn't exist

解决：

 USE performance_schema;
CREATE TABLE session_variables (
      VARIABLE_NAME VARCHAR(64),
      VARIABLE_VALUE VARCHAR(1024)
   );