Ceph » RADOS

my ceph version is 14.2.8

i have a pool(public.rgw.buckets.ia.data) with 0 objects,but when i out a osd in the cursh,the DEGRADED will be non-zero,and objects degraded will higher than 100% in ceph -s.

  data:
    pools:   11 pools, 20736 pgs
    objects: 6.56k objects, 18 KiB
    usage:   111 TiB used, 17 PiB / 17 PiB avail
    pgs:     128172/19704 objects degraded (650.487%)
             20628 active+clean
             100   active+recovery_wait+undersized+degraded+remapped
             8     active+recovering+undersized+remapped

  io:
    client:   90 KiB/s rd, 594 B/s wr, 89 op/s rd, 56 op/s wr
    recovery: 0 B/s, 420 objects/s

  progress:
    Rebalancing after osd.1176 marked out
      [..............................]

# rados df
POOL_NAME                          USED OBJECTS CLONES COPIES MISSING_ON_PRIMARY UNFOUND DEGRADED    RD_OPS      RD    WR_OPS      WR USED COMPR UNDER COMPR 
.rgw.root                       4.3 KiB      16      0     48                  0       0        0      4363 4.7 MiB        50  37 KiB        0 B         0 B 
public.rgw.buckets.data             0 B       0      0      0                  0       0        0  29084190 838 GiB  84345190 1.2 TiB        0 B         0 B 
public.rgw.buckets.data01           0 B       4      0     24                  0       0        0   4634823 821 GiB   6574641 1.2 TiB        0 B         0 B 
public.rgw.buckets.glacier.data     0 B       0      0      0                  0       0        0      3427  18 MiB     20261 1.2 GiB        0 B         0 B 
public.rgw.buckets.ia.data          0 B       0      0      0                  0       0    128172  25937847 1.7 TiB  71499161 2.5 TiB        0 B         0 B 
public.rgw.buckets.index            0 B    6144      0  18432                  0       0        0 180552936 179 GiB  85694157  33 GiB        0 B         0 B 
public.rgw.buckets.non-ec           0 B       0      0      0                  0       0        0     71675 146 MiB     27506  16 MiB        0 B         0 B 
public.rgw.control                  0 B       8      0     24                  0       0        0         0     0 B         0     0 B        0 B         0 B 
public.rgw.log                  1.3 MiB     374      0   1122                  0       0        0 537080205 521 GiB 373762517  29 GiB        0 B         0 B 
public.rgw.meta                 4.0 KiB      18      0     54                  0       0        0    198453 161 MiB     11312 5.1 MiB        0 B         0 B 
public.rgw.otp                      0 B       0      0      0                  0       0        0         0     0 B         0     0 B        0 B         0 B