[ceph-users] index object in shard begins with hex 80

Hi, I am using ceph 17.2.6 on rocky linux 8. I got a large omap object warning today. Ok, So I tracked it down to a shard for a bucket in the index pool of an s3 pool. However, when lisitng the omapkeys with: # rados -p pool.index listomapkeys .dir.zone.bucketid.xx.indexshardnumber it is clear that the problem is caused by many omapkeys with the following name format: <80>0_00004771163.3444695458.6 A hex dump of the output of the listomapkeys command above indicates that the first 'character' is indeed hex 80, but as there is no equivalent ascii for hex 80, I am not sure how to 'get at' those keys to see the values, delete them, etc. The index keys not of the format above appear to be fine, indicating s3 object names as expected. The rest of the index shards for the bucket are reasonable and have less than  osd_deep_scrub_large_omap_object_key_threshold index objects , and the overall total of objects in the bucket is way less than osd_deep_scrub_large_omap_object_key_threshold*num_shards. These weird objects seem to be created occasionally.........????? Yes, the bucket is used heavily. Any advice here? -Chris