[Gluster-users] nfs-ganesha/pnfs read/write path on EC volume

[Serkan Çoban]

I am using 2.3. But I can test 2.4 if there are centos packages..
Or I can try to build rpm packages from latest ganesha if it is easy to build..

On Fri, Mar 18, 2016 at 7:03 AM, Jiffin Tony Thottan
<jthottan at redhat.com> wrote:
>
>
> On 17/03/16 23:17, Serkan Çoban wrote:
>>
>> Hi Jiffin,
>> Will these patches land in 3.7.9?
>
>
> Hi Serkan,
>
> I moved all changes to ganesha [1] and got merged upstream (ganesha
> V2.4-dev-9),
> I missed to back port it to 2.3, so which ganesha build are u using?
>
> [1] https://review.gerrithub.io/#/c/263180/
>
> Jiffin
>
>> Serkan
>>
>> On Tue, Feb 16, 2016 at 2:47 PM, Jiffin Tony Thottan
>> <jthottan at redhat.com> wrote:
>>>
>>> Hi Serkan,
>>>
>>> I had moved out previous gfapi-side to ganesha and include all those
>>> change
>>> in single patch https://review.gerrithub.io/#/c/263180/
>>>
>>> I will try get it reviewed and merge the patch as soon as possible.
>>>
>>> With Regards,
>>> Jiffin
>>>
>>> On 14/02/16 21:54, Serkan Çoban wrote:
>>>>
>>>> Thanks for the answer,
>>>> AFAIK, when using pNFS, every different file read/write should go to
>>>> different server in order to utilize all servers in parallel.
>>>> I am waiting for the patches and future releases.Thanks for all your
>>>> efforts.
>>>>
>>>> Serkan
>>>>
>>>> On Wed, Feb 10, 2016 at 2:21 PM, Jiffin Tony Thottan
>>>> <jthottan at redhat.com> wrote:
>>>>>
>>>>> Hi,
>>>>>
>>>>> Sorry for the delayed delayed response
>>>>>
>>>>>
>>>>> On 10/02/16 13:51, Pranith Kumar Karampuri wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>> On 02/10/2016 01:15 PM, Serkan Çoban wrote:
>>>>>>>
>>>>>>> Hi Jiffin,
>>>>>>>
>>>>>>> Any update about the write path?
>>>>>>
>>>>>> I saw him send some mails related to this, yesterday and day before.
>>>>>> You
>>>>>> will hear from him soon.
>>>>>>
>>>>>> Pranith
>>>>>>>
>>>>>>>
>>>>>>> Serkan
>>>>>>>
>>>>>>> On Sun, Jan 31, 2016 at 5:00 PM, Jiffin Tony Thottan
>>>>>>> <jthottan at redhat.com> wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>> On 31/01/16 16:19, Serkan Çoban wrote:
>>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>> I am testing nfs-ganesha with pNFS on EC volume and I want to ask
>>>>>>>>> some
>>>>>>>>> questions.
>>>>>>>>> Assume we have two clients: c1,c2
>>>>>>>>> and six servers with one 4+2 EC volume constructed as below:
>>>>>>>>>
>>>>>>>>> gluster volume create vol1 disperse 6 redundancy 2
>>>>>>>>> server{1..6}:/brick/b1
>>>>>>>>> \
>>>>>>>>>
>>>>>>>>>          server{1..6}:/brick/b2 \
>>>>>>>>>
>>>>>>>>>          server{1..6}:/brick/b3 \
>>>>>>>>>
>>>>>>>>>          server{1..6}:/brick/b4 \
>>>>>>>>>
>>>>>>>>>          server{1..6}:/brick/b5 \
>>>>>>>>>
>>>>>>>>>          server{1..6}:/brick/b6
>>>>>>>>> vol1 is mounted on both clients as server1:/vol1
>>>>>>>>>
>>>>>>>>> Here is first question: When I write file1 from client1 and file2
>>>>>>>>> from
>>>>>>>>> client2; which servers get the files? In my opinion server1 gets
>>>>>>>>> file1
>>>>>>>>> and server2 gets file2 and do EC calculations and distribute chunks
>>>>>>>>> to
>>>>>>>>> other servers. Am I right?
>>>>>>>>>
>>>>>>>>> Can anyone explain detailed read/write path with pNFS and EC
>>>>>>>>> volumes?
>>>>>>>>
>>>>>>>>
>>>>> Currently in pNFS cluster , request is send to the first DS available
>>>>> in
>>>>> the
>>>>> list.
>>>>> So I am to planning to distribute different files among the available
>>>>> DS,
>>>>> as
>>>>> a first step
>>>>> I had send out patch in gluster (http://review.gluster.org/#/c/13402/)
>>>>> After this one got merged, there are certain changes in ganesha side
>>>>> too.
>>>>> I had tested both changes in my setup and it was working as accepted.
>>>>>
>>>>> Once again thanks for pointing out this issue
>>>>>
>>>>> --
>>>>> Regards,
>>>>> Jiffin
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>>> I never tried pNFS with EC volume, will try the same by my own and
>>>>>>>> reply
>>>>>>>> to
>>>>>>>> your question as soon as possible.
>>>>>>>> --
>>>>>>>> Jiffin
>>>>>>>>
>>>>>>>>> Thanks,
>>>>>>>>> Serkan
>>>>>>>>> _______________________________________________
>>>>>>>>> Gluster-users mailing list
>>>>>>>>> Gluster-users at gluster.org
>>>>>>>>> http://www.gluster.org/mailman/listinfo/gluster-users
>>>>>>>>
>>>>>>>>
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>>>>>>
>