- The head object had a size of 0.
- There was an object with a ’shadow’ in its name, belonging to that path.
That is normal. What is not normal is if there are NO shadow objects.

On 18/11/2020 10:06, Denis Krienbühl wrote:
It looks like a single-part object. But we did replace that object last night 
from backup, so I can’t know for sure if the lost one was like that.

Another engineer that looked at the Rados objects last night did notice two 
things:

- The head object had a size of 0.
- There was an object with a ’shadow’ in its name, belonging to that path.

I’m not knowledgable about Rados, so I’m not sure this is helpful.

On 18 Nov 2020, at 10:01, Janek Bevendorff <janek.bevendo...@uni-weimar.de> 
wrote:

Sorry, it's radosgw-admin object stat --bucket=BUCKETNAME --object=OBJECTNAME (forgot the 
"object" there)

On 18/11/2020 09:58, Janek Bevendorff wrote:
The object, a Docker layer, that went missing has not been touched in 2 months. 
It worked for a while, but then suddenly went missing.
Was the object a multipart object? You can check by running radosgw-admin stat --bucket=BUCKETNAME --object=OBJECTNAME. 
It should say something "ns": "multipart" in the output. If it says "ns": 
"shadow", it's a single-part object.
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