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【DM版本】:dm8
【操作系统】：centos7
【CPU】:
【问题描述】*：想了解下dmap和dmap_br的区别？目前看报备份过程中包了dmap_br的报错，异常退出了。
2023-04-26 10:28:51.161608 [INFO] [Thread-11] 2023-04-26 10:28:50 [WARNING] dmap_br P0000001129 PPID0000013704 remove incomplete bakset /home/dmdba/dmdbms/data/DAMENG/bak/DB_FULL_BAK
2023-04-26 10:28:51.161620 [INFO] [Thread-11] 2023-04-26 10:28:50 [ERROR] dmap_br P0000001129 PPID0000013704 brw_read_thread exit with code -10003
2023-04-26 10:28:51.161633 [INFO] [Thread-11] 2023-04-26 10:28:50 [ERROR] dmap_br P0000001127 PPID0000013704 CMD [BACKUP_META] failed, code:[-10003],desc:Fail in mml(-10003)