记录一下数据库报错: 

Error: failed to fetch query result SELECT server_uuid, local, replication, storage_engines FROM performance_schema.log_status: Access denied; you need (at least one of) the BACKUP_ADMIN privilege(s) for this operation

grant BACKUP_ADMIN on *.* to 'root'@'%';
FLUSH PRIVILEGES;

搞定,其他类似问题应该也可以这样解决