On Tue, Sep 15, 2015 at 11:49 PM, Xusangdi <[email protected]> wrote:
> I resend this email because I found that somehow the one from ceph-devel 
> could not be opened normally. Just wanna make sure you received it, thank you.
>
>
> Hi Yehuda,
>
> I believe you noticed this issue (http://tracker.ceph.com/issues/12890) as 
> you changed the priority to high. I need your help about the following 
> related questions:
> 1. When removing a subuser, is it okay to set '--purge-keys' as the default 
> option?
> If we do so, there is no way to keep the keys since we don't have options 
> like --keep-keys. IMO that is acceptable, but I'm not sure if there exist 
> some scenarios that users want to just delete a subuser but preserve its keys.

Yeah, I think it's fine removing its keys if it doesn't exist anymore.

>
> 2. Do we need to purge both S3 keys and swift keys at the same time?
> Though ceph documents claim that subuser is designed for swift API, it is 
> allowed to create s3 access-secret key pairs for subusers, and they can be 
> used through s3 interface without any problem. Moreover, when creating a 
> subuser with the command 'radosgw-admin subuser create --uid=test 
> --subuser=test:sub', ceph would by default create an s3 key pair for the 
> subuser. Thus, if we do want to purge keys, I think it is necessary to check 
> both s3 and swift keys and delete all associate entries.

Yes, both S3 and swift keys for that specific subuser.

>
> 3. Do we need to prevent a subuser without any permission from obtaining the 
> account information?
> Currently a subuser with permission <none> can get some of the account 
> metadata and its bucket list. The following shows a part of my testing result:
>         sandy@ceph20:~$ curl -i $url -X GET -H "X-Auth-Token: $token"
>         HTTP/1.1 200 OK
>         X-Timestamp: 1442367990.90740
>         X-Account-Container-Count: 1
>         X-Account-Object-Count: 2
>         X-Account-Bytes-Used: 41943040
>         X-Account-Bytes-Used-Actual: 41943040
>         X-Trans-Id: ts-default.64171.86-20150916:014630:904
>         Content-type: text/plain; charset=utf-8
>         Content-Length: 9
>         Date: Wed, 16 Sep 2015 01:46:30 GMT
>
>         bkt_test
>

I'm not sure. The permissions are either read, write, or delete, which
don't make sense with regard to this operation. I think we would need
to add a new permission type for it to make sense, but I'm not sure
this is something we need or want to pursue.

>
> When doing the tests, I also encountered several other issues that I cannot 
> tell whether are bugs or designed on purpose.
> i1: As mentioned in question 2, a subuser is created with s3 keys rather than 
> a swift key.

This is probably a bug. I vaguely remember merging in or reviewing a
related fix recently. Are you running the latest?

> i2: The auto-generated s3 secret key is empty, and it is regarded as valid.

Sounds like a bug.

> i3: The account metadata obtained from swift API contains doubled object 
> count and bytes used. For a subuser possessing one container and one object, 
> the results may look like this:
>         sandy@ceph20:~$ curl -i $url -X GET -H "X-Auth-Token: $token2"
>         HTTP/1.1 200 OK
>         X-Timestamp: 1442371316.79489
>         X-Account-Container-Count: 1
>         X-Account-Object-Count: 2
>         X-Account-Bytes-Used: 41943040
>         X-Account-Bytes-Used-Actual: 41943040
>         X-Trans-Id: ts-default.64171.99-20150916:024156:790
>         Content-type: text/plain; charset=utf-8
>         Content-Length: 9
>         Date: Wed, 16 Sep 2015 02:41:56 GMT
>
>         bkt_test
>
>         sandy@ceph20:~$ curl -i $url/bkt_test -X GET -H "X-Auth-Token: 
> $token2"
>         HTTP/1.1 200 OK
>         X-Timestamp: 1442280690.00000
>         X-Container-Object-Count: 1
>         X-Container-Bytes-Used: 20971520
>         X-Container-Bytes-Used-Actual: 20971520
>         X-Storage-Policy: default-placement
>         X-Trans-Id: ts-default.64171.100-20150916:024200:482
>         Content-Length: 9
>         Accept-Ranges: bytes
>         Content-type: text/plain; charset=utf-8
>         Date: Wed, 16 Sep 2015 02:42:00 GMT
>
>         file_test

Sounds like another bug, can you open tickets for the relevant bugs?

Thanks,
Yehuda

>
> As you can see, the container has only one object of 20M, but the account 
> owns two objects of 40M in total. I checked the .rgw.buckets pool and it 
> contains only one file:
>         sandy@ceph20:~$ rados -p .rgw.buckets ls
>         default.64171.1__shadow_.bSI8b1u0Wff4-2LuEDCYtYkqhpuqPAK_4
>         default.64171.1__shadow_.bSI8b1u0Wff4-2LuEDCYtYkqhpuqPAK_1
>         default.64171.1__shadow_.bSI8b1u0Wff4-2LuEDCYtYkqhpuqPAK_5
>         default.64171.1__shadow_.bSI8b1u0Wff4-2LuEDCYtYkqhpuqPAK_3
>         default.64171.1_file_test
>         default.64171.1__shadow_.bSI8b1u0Wff4-2LuEDCYtYkqhpuqPAK_2
>
>
> Your comments and suggestions would be sincerely appreciated, thank you.
>
> -----
> Best regards,
> Sangdi
> -------------------------------------------------------------------------------------------------------------------------------------
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