rgw - unable to remove some orphans

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Happy New Year everyone! 

I have a bit of an issue with removing some of the orphan objects that were generated with the rgw-orphan-list tool. Over the years rgw generated over 14 million orphans with an overall waste of over 100TB in size, considering the overall data stored in rgw was well under 10TB at max. Anyways, I have managed to remove around 12m objects over the holiday season, but there are just over 2m orphans which were not removed. Here is an example of one of the objects taken from the orphans list file: 

$ rados -p .rgw.buckets rm 'default.775634629.1__multipart_SQL Backups/ALL-POND-LIVE_backup_2021_05_26_204508_8473183.d20210526-u200953.bak.s26895803904.zip.0e6LO9b4w9H3HepY-3IW_JSOaysLdFs.1_92' 

error removing .rgw.buckets>default.775634629.1__shadow_SQL Backups/ALL-POND-LIVE_backup_2021_05_26_204508_8473183.d20210526-u200953.bak.s26895803904.zip.0e6LO9b4w9H3HepY-3IW_JSOaysLdFs.1_92: (2) No such file or directory 

Checking the presence of the object with the rados tool shows that the object is there. 

$ cat orphan-list-20230103105849.out |grep -a JSOaysLdFs |grep -a 92 
default.775634629.1__shadow_SQL Backups/ALL-POND-LIVE_backup_2021_05_26_204508_8473183.d20210526-u200953.bak.s26895803904.zip.0e6LO9b4w9H3HepY-3IW_JSOaysLdFs.1_92 

$ cat rados-20230103105849.intermediate |grep -a JSOaysLdFs |grep -a 92 
default.775634629.1__shadow_SQL Backups/ALL-POND-LIVE_backup_2021_05_26_204508_8473183.d20210526-u200953.bak.s26895803904.zip.0e6LO9b4w9H3HepY-3IW_JSOaysLdFs.1_92 


Why can't I remove it? I have around 2m objects which can't be removed. What can I do to remove them? 

Thanks 

Andrei 
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