As long as you're 100% sure that the prefix is only being used for the
specific bucket that was previously removed, then it is safe to remove
these objects. But please do double check and make sure that there's
no other bucket that matches this prefix somehow.
Yehuda
On Mon, Aug 31, 2015 at 2:42 PM, Ben Hines <bhines@xxxxxxxxx> wrote:
> No input, eh? (or maybe TL,DR for everyone)
>
> Short version: Presuming the bucket index shows blank/empty, which it
> does and is fine, would me manually deleting the rados objects with
> the prefix matching the former bucket's ID cause any problems?
>
> thanks,
>
> -Ben
>
> On Fri, Aug 28, 2015 at 4:22 PM, Ben Hines <bhines@xxxxxxxxx> wrote:
>> Ceph 0.93->94.2->94.3
>>
>> I noticed my pool used data amount is about twice the bucket used data count.
>>
>> This bucket was emptied long ago. It has zero objects:
>> "globalcache01",
>> {
>> "bucket": "globalcache01",
>> "pool": ".rgw.buckets",
>> "index_pool": ".rgw.buckets.index",
>> "id": "default.8873277.32",
>> "marker": "default.8873277.32",
>> "owner": "...",
>> "ver": "0#12348839",
>> "master_ver": "0#0",
>> "mtime": "2015-03-08 11:44:11.000000",
>> "max_marker": "0#",
>> "usage": {
>> "rgw.none": {
>> "size_kb": 0,
>> "size_kb_actual": 0,
>> "num_objects": 0
>> },
>> "rgw.main": {
>> "size_kb": 0,
>> "size_kb_actual": 0,
>> "num_objects": 0
>> }
>> },
>> "bucket_quota": {
>> "enabled": false,
>> "max_size_kb": -1,
>> "max_objects": -1
>> }
>> },
>>
>>
>>
>> bucket check shows nothing:
>>
>> 16:07:09 root@sm-cephrgw4 ~ $ radosgw-admin bucket check
>> --bucket=globalcache01 --fix
>> []
>> 16:07:27 root@sm-cephrgw4 ~ $ radosgw-admin bucket check
>> --check-head-obj-locator --bucket=globalcache01 --fix
>> {
>> "bucket": "globalcache01",
>> "check_objects": [
>> ]
>> }
>>
>>
>> However, i see a lot of data for it on an OSD (all shadow files with
>> escaped underscores)
>>
>> [root@sm-cld-mtl-008 current]# find . -name default.8873277.32* -print
>> ./12.161_head/DIR_1/DIR_6/DIR_9/DIR_E/default.8873277.32\u\ushadow\u.Tos2Ms8w2BiEG7YJAZeE6zrrc\uwcHPN\u1__head_D886E961__c
>> ./12.161_head/DIR_1/DIR_6/DIR_9/DIR_E/DIR_1/default.8873277.32\u\ushadow\u.Aa86mlEMvpMhRaTDQKHZmcxAReFEo2J\u1__head_4A71E961__c
>> ./12.161_head/DIR_1/DIR_6/DIR_9/DIR_E/DIR_5/default.8873277.32\u\ushadow\u.KCiWEa4YPVaYw2FPjqvpd9dKTRBu8BR\u17__head_00B5E961__c
>> ./12.161_head/DIR_1/DIR_6/DIR_9/DIR_E/DIR_8/default.8873277.32\u\ushadow\u.A2K\u2H1XKR8weiSwKGmbUlsCmEB9GDF\u32__head_42E8E961__c
>> <snip>
>>
>> -bash-4.1$ rados -p .rgw.buckets ls | egrep '8873277\.32.+'
>> default.8873277.32__shadow_.pvaIjBfisb7pMABicR9J2Bgh8JUkEfH_47
>> default.8873277.32__shadow_.Wr_dGMxdSRHpoeu4gsQZXJ8t0I3JI7l_6
>> default.8873277.32__shadow_.WjijDxYhLFMUYdrMjeH7GvTL1LOwcqo_3
>> default.8873277.32__shadow_.3lRIhNePLmt1O8VVc2p5X9LtAVfdgUU_1
>> default.8873277.32__shadow_.VqF8n7PnmIm3T9UEhorD5OsacvuHOOy_16
>> default.8873277.32__shadow_.Jrh59XT01rIIyOdNPDjCwl5Pe1LDanp_2
>> <snip>
>>
>> Is there still a bug in the fix obj locator command perhaps? I suppose
>> can just do something like:
>>
>> rados -p .rgw.buckets cleanup --prefix default.8873277.32
>>
>> Since i want to destroy the bucket anyway, but if this affects other
>> buckets, i may want to clean those a better way.
>>
>> -Ben
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