[Gluster-devel] Adding one variable to inode structure

[Pranith Kumar Karampuri]

On Mon, Jun 5, 2017 at 11:24 AM, Tahereh Fattahi <t28.fattahi at gmail.com>
wrote:

> Thank you
> I see that this xlator is loaded in server side.
> How can I access to variable in index xlator in client side?
> is it correct? getfattr trusted.index.myvar
>

To which xlator do you want this information? Or do you want this on mount?


>
> On Mon, Jun 5, 2017 at 10:00 AM, Pranith Kumar Karampuri <
> pkarampu at redhat.com> wrote:
>
>>
>>
>> On Mon, Jun 5, 2017 at 9:55 AM, Tahereh Fattahi <t28.fattahi at gmail.com>
>> wrote:
>>
>>> Assume that one client wants to search it's directories for video files.
>>>  I want use something that helps this client to search just directories
>>> that have this kind of file.
>>> like a extended attribute, but I want this attribute be set by server
>>> not by client.
>>> I dont know which xlator is suitable for this work.
>>>
>>
>> The xlator that comes close to it is:  index xlator
>> xlators/features/index/src
>>
>> You may have to track extra operations like create/mknod/link/rename/unlink
>> to make sure you get the functionality you want. Basically this xlator
>> helps you in indexing a behavior. We use this for indexing
>> directories/files that need heal etc.
>>
>>
>>>
>>> On Mon, Jun 5, 2017 at 7:13 AM, Pranith Kumar Karampuri <
>>> pkarampu at redhat.com> wrote:
>>>
>>>> This sounds hacky. In general anything that is specific about an inode,
>>>> we try to store it in inode-ctx. Who uses this information about presence
>>>> of video-file and how? May be with that knowledge there could be a
>>>> possibility we can improve the solution. Do let us know the complete
>>>> problem you are trying to solve.
>>>>
>>>> On Mon, Jun 5, 2017 at 4:53 AM, Tahereh Fattahi <t28.fattahi at gmail.com>
>>>> wrote:
>>>>
>>>>> Hi
>>>>> I want to add one boolean field to inode structure for a directory.
>>>>>  when it is 1 it means that directory has one or more video file. when
>>>>> it is 0 it means that there is no video file in that directory.
>>>>> I can add this variable to inode structure and update it in server
>>>>> side, in posix_create function (when there is a create request for a video
>>>>> file).
>>>>> question is about client knowledge about this variable. is it possible
>>>>> that client can see the amount of this variable of different servers
>>>>> (bricks) and OR them to one variable in cient's inode of the directory? in
>>>>> which xlator I should try in client side?
>>>>>
>>>>> _______________________________________________
>>>>> Gluster-devel mailing list
>>>>> Gluster-devel at gluster.org
>>>>> http://lists.gluster.org/mailman/listinfo/gluster-devel
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Pranith
>>>>
>>>
>>>
>>
>>
>> --
>> Pranith
>>
>
>


-- 
Pranith
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