Bug #57919
openbucket can not be resharded after cancelling prior reshard process
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Description
Hi,
we run a multisite setup where only the metadata get synced, but not the actual data.
I wanted to reshard a bucket (we do this all the time, because a lot of buckets still have 0 shards, and we increase it when necessary), but entered the wrong shard number. I hit `ctrl-c` and tried to cancel with `radosgw-admin reshard cancel --bucket bucket`. After it was canceled I am not able to reshard this bucket anymore.
After some digging it looks like the metadata is broken, and now I fear that I broke the bucket.
Does anybody know what I can do?
Error message:
$ radosgw-admin bucket reshard --bucket bucket --num-shards 11 ERROR: the bucket is currently undergoing resharding and cannot be added to the reshard list at this time
Current reshard status:
$ radosgw-admin reshard status --bucket bucket [ { "reshard_status": "not-resharding", "new_bucket_instance_id": "", "num_shards": -1 } ]
Bucket stats already use new id and marker, and still shows 0 shards
$ radosgw-admin bucket stats --bucket bucket { "bucket": "bucket", "num_shards": 0, ... "id": "ff7a8b0c-07e6-463a-861b-78f0adeba8ad.2296333939.14", "marker": "ff7a8b0c-07e6-463a-861b-78f0adeba8ad.2296333939.14", ... }
Metadata with old id show 211 shards and a different marker and bucket id
$ radosgw-admin metadata get bucket.instance:bucket:ff7a8b0c-07e6-463a-861b-78f0adeba8ad.2368407345.1 { "key": "bucket.instance:bucket:ff7a8b0c-07e6-463a-861b-78f0adeba8ad.2368407345.1", "ver": { "tag": "QndcbsKPFDjs6rYKKDHde9bM", "ver": 2 }, "mtime": "2022-10-07T07:16:49.231685Z", "data": { "bucket_info": { "bucket": { "name": "bucket", "marker": "ff7a8b0c-07e6-463a-861b-78f0adeba8ad.2296333939.14", "bucket_id": "ff7a8b0c-07e6-463a-861b-78f0adeba8ad.2368407345.1", ... }, ... "num_shards": 211, ... }, }
There is no metadata with the new bucket id.
$ radosgw-admin metadata get bucket.instance:bucket:ff7a8b0c-07e6-463a-861b-78f0adeba8ad.2296333939.14 ERROR: can't get key: (2) No such file or directory
Cheers
Boris
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