summarized radosgw size_kb_actual vs pool stored value doesn't add up

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Hi,
I am still searching for a reason why these two values differ so much.

I am currently deleting a giant amount of orphan objects (43mio, most
of them under 64kb), but the difference get larger instead of smaller.

This was the state two days ago:
>
> [root@s3db1 ~]# radosgw-admin bucket stats | grep '"size_kb_actual"' | awk '{ print $2 }' | tr -d , | paste -sd+ - | bc
> 175977343264
>
> [root@s3db1 ~]# rados df
> POOL_NAME                          USED   OBJECTS CLONES    COPIES MISSING_ON_PRIMARY UNFOUND DEGRADED     RD_OPS      RD    WR_OPS      WR USED COMPR UNDER COMPR
> ...
> eu-central-1.rgw.buckets.data   766 TiB 134632397      0 403897191                  0       0        0 1076480853  45 TiB 532045864 551 TiB        0 B         0 B
> ...
> total_objects    135866676
>
> [root@s3db1 ~]# ceph df...
>     eu-central-1.rgw.buckets.data       11     2048     253 TiB     134.63M     766 TiB     90.32        27 TiB

And this is todays state:
>
> [root@s3db1 ~]# radosgw-admin bucket stats | grep '"size_kb_actual"' | awk '{ print $2 }' | tr -d , | paste -sd+ - | bc
> 177144806812
>
> [root@s3db1 ~]# rados df
> ...
> eu-central-1.rgw.buckets.data   786 TiB 120025590      0 360076770
> ...
> total_objects    121261889
>
> [root@s3db1 ~]# ceph df
> ...
>     eu-central-1.rgw.buckets.data       11     2048     260 TiB     120.02M     786 TiB     92.59        21 TiB

I would love to free up the missing 80TB :)
Any suggestions?

-- 
Die Selbsthilfegruppe "UTF-8-Probleme" trifft sich diesmal abweichend
im groüen Saal.
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