bin log 보존기간 확인mysql> call mysql.rds_show_configuration;​bin log 존재 확인mysql> show binary logs;+----------------------------+-----------+-----------+| Log_name | File_size | Encrypted |+----------------------------+-----------+-----------+| mysql-bin-changelog.000022 | 65666285 | No |+----------------------------+-----------+-----------+1 row in set (0.01 sec) 먼저 binlog가..