[Gluster-devel] DHT xlator, read and write a file during creating a new file

[Tahereh Fattahi]

Hi

I  test getfattr -d -m. -e hex ' <path > but i get different result:
getfattr: Removing leading '/' from absolute path names
# file: data/brick1/gv2/c
trusted.gfid=0xae8c02978686440dac3754880dde5b93
trusted.glusterfs.dht=0x000000010000000000000000ffffffff00000000

maybe it is  better to create a new question a bout detail of directory
divided by brik!

On Wed, May 3, 2017 at 4:15 PM, Tahereh Fattahi <t28.fattahi at gmail.com>
wrote:

> Yes, it is ok
> Is it possible to see this attribute in client side? In which xlator?
>
> On Wed, May 3, 2017 at 2:58 PM, Sanoj Unnikrishnan <sunnikri at redhat.com>
> wrote:
>
>> I am not sure, if i got your requirement correctly.
>> If you need to have the file count and directory count of each brick
>> individually (without aggregation), you could get that by a getxattr of
>> trusted.glusterfs.quota.size on the brick.
>> The size xattr value can be interpreted as follows:
>> getfattr -d -m. -e hex ' <path >
>> size: first 16 bytes
>> filecount: Next 16 bytes
>> dircount: Last 16 bytes
>>
>> Regards,
>> Sanoj
>>
>> On Wed, May 3, 2017 at 12:20 PM, Tahereh Fattahi <t28.fattahi at gmail.com>
>> wrote:
>>
>>> Thank you
>>> I need this information divided to bricks.
>>>
>>> On Tue, May 2, 2017 at 11:07 PM, Vijay Bellur <vbellur at redhat.com>
>>> wrote:
>>>
>>>>
>>>>
>>>> On Tue, May 2, 2017 at 8:00 AM, Tahereh Fattahi <t28.fattahi at gmail.com>
>>>> wrote:
>>>>
>>>>> Hi
>>>>>
>>>>> I want to use a file as a counter when I create a file in dht xlator.
>>>>> I mean, after creating a new file,  I want open a file in the same
>>>>> directory with a special name, read that, update the counter and write
>>>>> back.
>>>>> I think for this purpose I  should open in dht_create_cbk, read in
>>>>> dht_open_cbk and write in dht_readv_cbk.
>>>>> I think I should use dht_open , dht_readv and dht_writev. Maybe I
>>>>> could create inputs for these function expect frame! is it correct to use
>>>>> the frame fro dht_create function?
>>>>>
>>>>> Is this scenario correct or there is better way?
>>>>>
>>>>>
>>>> Have you tried the object count feature [1] ?
>>>>
>>>> Regards,
>>>> Vijay
>>>>
>>>> [1] http://gluster-documentations.readthedocs.io/en/latest/Featu
>>>> res/quota-object-count/
>>>>
>>>
>>>
>>> _______________________________________________
>>> Gluster-devel mailing list
>>> Gluster-devel at gluster.org
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>>>
>>
>>
>
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