My default blob store was running out of disk space. I deleted the yum hosted repo and re-created it, using the same name, on another blob store (s3).
However I see that only a very small portion of data has been removed from the default blob store. I'm pretty sure that no other repositories are using the default blob store.
I already ran the compact blob store (daily in fact) and already tried a full re-scan for deleted blobs. (rebuildDeletedBlobIndex=true) and the blob count for the default blob store is still ~260k.
bash-5.0# cat 563d116f-8857-4273-9869-91b9a180ab96.properties
#Wed Jun 10 20:59:48 GMT 2020
However, this repo doesn't exist any more in this (default) blob store.