目录权限问题导致租户恢复卡住

obclient> select svr_ip, role, is_restore, count(*)
from __all_root_table as a,
(select value from __all_restore_info where name = 'tenant_id') as b
where a.tenant_id = b.value and a.tenant_id = 1012
group by role, is_restore, svr_ip
order by svr_ip, is_restore;

obclient> select * from __all_rootservice_event_history 
where event like "%restore%" order by gmt_create desc limit 10; 

observer.log.20221208124915:[2022-12-08 12:46:30.187445] WARN list_files (ob_storage_file.cpp:346) [24718][430][YB420A44267B-0005ED34237E1E23] [lt=7] [dc=0] fail to open dir(ret=-4009, dir_path="/idc2obbackup/IDC2_OBDB2/IDC2_OBDB2/1634176965/incarnation_1/1009/data/backup_set_110_full_20221207/backup_110", strerror_r(errno, errno_buf, sizeof(errno_buf))="Permission denied")

observer.log.20221208125413:[2022-12-08 12:51:30.200225] WARN [STORAGE] do_task (ob_partition_migrator.cpp:2916) [24718][430][YB420A44267B-0005ED34237E1E23] [lt=12] [dc=0] set first_error_code_(ret=-4009)
由此可知，恢复任务一直卡在“系统副本恢复中”的原因在于目录权限问题：fail to open dir(ret=-4009），sizeof(errno_buf))="Permission denied" 。