Hi,
Another issue with NFS and sec=sys mode. As we all know there is a limit of 15
security ids involved when running NFS in sec=sys mode. This limit makes
effective and granular usage of ACL assigned through groups almost unusable. One
way to overcome this limit is to use kerberised NFS but GlusterFS does not
natively support this access mode . Another option, at least according to one
email thread, states that GlusterFS has an option server.manage-gids which
should mitigate this limit and raise it to 90 something. Is this the option,
which can be used for increasing sec=sys limit. Sadly documentation does not
have clear description about this option, what exactly this option does and how
it should be used.
J.
On 29 Jul 2015, at 16:16, Jiffin Tony Thottan <jthottan at redhat.com>
wrote:
>
>
> On 29/07/15 18:04, J?ri Palis wrote:
>> Hi,
>>
>> setfacl for dir on local filesystem:
>>
>> 1. set acl setfacl -m g:x_meie_sec-test02:rx test
>> 2. get acl
>>
>> # getfacl test
>> user::rwx
>> group::r-x
>> group:x_meie_sec-test02:r-x
>> mask::r-x
>> other::r-x
>>
>> setfacl for dir on GlusterFS volume which is NFS mounted to client
system
>>
>> 1. same command is used for setting ACE, no error is returned by that
command
>> 2. get acl
>>
>> #getfacl test
>> user::rwx
>> group::r-x
>> other::---
>>
>>
>> If I use ordinary file as a target on GlusterFS like this
>>
>> setfacl -m g:x_meie_sec-test02:rw dummy
>>
>> then ACE entry is set for file dummy stored on GlusterFS
>>
>> # getfacl dummy
>> user::rw-
>> group::r--
>> group:x_meie_sec-test02:rw-
>> mask::rw-
>> other::?
>>
>> So, as you can see setting ACLs for files works but does not work for
directories.
>>
>> This all is happening on CentOS7, running GlusterFS 3.7.2
>
> Hi Jyri,
>
> It seems there are couple of issues ,
>
> 1.) when u set a named group acl for file/directory, it clears the
permission of others too.
> 2.) named group acl is not working properly for directories ,
>
> I will try the same on my setup and share my findings.
> --
> Jiffin
>
>> J.
>> On 29 Jul 2015, at 15:16, Jiffin Thottan <jthottan at redhat.com>
wrote:
>>
>>>
>>> ----- Original Message -----
>>> From: "J?ri Palis" <jyri.palis at gmail.com>
>>> To: gluster-users at gluster.org
>>> Sent: Wednesday, July 29, 2015 4:19:20 PM
>>> Subject: [Gluster-users] GlusterFS 3.7.2 and ACL
>>>
>>> Hi
>>>
>>> Setup:
>>> GFS 3.7.2, NFS is used for host access
>>>
>>> Problem:
>>> POSIX ACL work correctly when ACLs are applied to files but do not
work when ACLs are applied to directories on GFS volumes.
>>>
>>> How can I debug this issue more deeply?
>>>
>>> Can you please explain the issue with more details, i.e what
exactly not working properly , is it setting acl or any functionality issue, in
which client?
>>> __
>>> Jiffin
>>>
>>> Regards,
>>> Jyri
>>> _______________________________________________
>>> Gluster-users mailing list
>>> Gluster-users at gluster.org
>>> http://www.gluster.org/mailman/listinfo/gluster-users
>> _______________________________________________
>> Gluster-users mailing list
>> Gluster-users at gluster.org
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>
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