1. create a bucket named bucket with versioning enabled
2. upload an object named obj
3. use radosgw-admin bi list --bucket=bucket--object=obj, I'm confused with the first entry displayed as bellow, why we need it?
[
{
"type": "plain",
"idx": "obj",
"entry": {
"name": "obj",
"instance": "",
"ver": {
"pool": -1,
"epoch": 0
},
"locator": "",
"exists": "false",
"meta": {
"category": 0,
"size": 0,
"mtime": "0.000000",
"etag": "",
"owner": "",
"owner_display_name": "",
"content_type": "",
"accounted_size": 0,
"user_data": ""
},
"tag": "",
"flags": 8,
"pending_map": [],
"versioned_epoch": 0
}
},
{
"type": "plain",
"idx": "obj\u0000v913\u0000iRcwAFyijyVd62p5RfVrMJ86Ckg6--BO",
"entry": {
"name": "obj",
"instance": "RcwAFyijyVd62p5RfVrMJ86Ckg6--BO",
"ver": {
"pool": 8,
"epoch": 4
},
"locator": "",
"exists": "true",
"meta": {
"category": 1,
"size": 0,
"mtime": "2018-11-15 12:40:50.570927Z",
"etag": "d41d8cd98f00b204e9800998ecf8427e",
"owner": "testid",
"owner_display_name": "M. Tester",
"content_type": "",
"accounted_size": 0,
"user_data": ""
},
"tag": "8745906d-8595-45b0-8afa-6329fb459504.64105.97",
"flags": 3,
"pending_map": [],
"versioned_epoch": 2
}
},
{
"type": "instance",
"idx": "1000_obj\u0000iRcwAFyijyVd62p5RfVrMJ86Ckg6--BO",
"entry": {
"name": "obj",
"instance": "RcwAFyijyVd62p5RfVrMJ86Ckg6--BO",
"ver": {
"pool": 8,
"epoch": 4
},
"locator": "",
"exists": "true",
"meta": {
"category": 1,
"size": 0,
"mtime": "2018-11-15 12:40:50.570927Z",
"etag": "d41d8cd98f00b204e9800998ecf8427e",
"owner": "testid",
"owner_display_name": "M. Tester",
"content_type": "",
"accounted_size": 0,
"user_data": ""
},
"tag": "8745906d-8595-45b0-8afa-6329fb459504.64105.97",
"flags": 3,
"pending_map": [],
"versioned_epoch": 2
}
},
{
"type": "olh",
"idx": "1001_obj",
"entry": {
"key": {
"name": "obj",
"instance": "RcwAFyijyVd62p5RfVrMJ86Ckg6--BO"
},
"delete_marker": "false",
"epoch": 2,
"pending_log": [],
"tag": "oe82c75af1zizz3e1fuf5pe4qe25b4mj",
"exists": "true",
"pending_removal": "false"
}
}
]
