[Gluster-devel] Invitation: Re: Question on merging zfs snapshot supp... @ Tue Dec 20, 2016 2:30pm - 3:30pm (IST) (sriram at marirs.net.in)

Mon Jan 2 11:08:52 UTC 2017

Hi Rajesh, 

Right now bi-weekly should be ok, with progress we could decide. I'll
continue to rework the initial patch set and post it for review. We'll
take it from there, is that ok with you?

Sriram 

On Mon, Jan 2, 2017, at 03:32 PM, Rajesh Joseph wrote:

> 

> 

> On Mon, Jan 2, 2017 at 3:19 PM, <sriram at marirs.net.in> wrote:

>> __

>> Hi Avra, 

>> 

>> Is the below request ok with you? 

>> 

>> Sriram

>> 

>> 

>> On Wed, Dec 21, 2016, at 10:00 AM, sriram at marirs.net.in wrote:

>>> Hi Avra/Rajesh, 

>>> 

>>> In continuation to the discussion we'd yesterday, I'd be working on
>>> the change we'd initiated sometime back for pluggable FS specific
>>> snapshot implementation. We'd be moving our gluster deployements to
>>> "master" (stable) once this feature goes in. Since, glusterd2.0
>>> release is scheduled release next year, I'd be happy if some of the
>>> work done here is re-usable to glusterd2.0 as well.
>>> 

>>> Let me know, if this is ok. Like Rajesh mentioned in the call, could
>>> we've a weekly meeting for the same feature?
> 

> Hi Sriram,

> I was on vacation so could not reply to your mail.

> I am OK with having a regular sync-up on this issue. Let's take this
> to conclusion.
> Do we need a weekly meeting or bi-weekly meeting is fine?

> Best Regards,

> Rajesh

> 

>  

>>> 

>>> 

>>> Sriram

>>> 

>>> On Mon, Dec 19, 2016, at 03:55 PM, asengupt at redhat.com wrote:

>>>> 

>>>> 

>>>> more details »[1]

>>>> Re: [Gluster-devel] Question on merging zfs snapshot support into
>>>> the mainline glusterfs
>>>> Hi Sriram,

>>>> Could you please join the hangout, so that we can discuss snapshot
>>>> plugabbility. Thanks
>>>> Meeting Link: https://bluejeans.com/u/asengupt/[2]

>>>> Regards,
>>>> Avra

>>>> On 12/19/2016 01:38 PM, sriram at marirs.net.in wrote:
>>>> > Hi Avra,
>>>> >
>>>> > Could you help on the below request?  May I abandon the previous
>>>> > submitted patches, and could we consider the latest one?
>>>> >
>>>> > Sriram
>>>> >
>>>> >
>>>> > On Thu, Dec 15, 2016, at 12:57 PM, sriram at marirs.net.in wrote:
>>>> >> Hi Avra,
>>>> >>
>>>> >> Thanks for the reply,
>>>> >>
>>>> >> But the problem I see here is the previous patch set sent
>>>> >> would'nt compile individually. So, I merged the changes into a
>>>> >> single patch , which i'd posted today. Is it ok to drop all the
>>>> >> previous posted patches and consider from the new one? Please
>>>> >> suggest.
>>>> >>
>>>> >> Sriram
>>>> >>
>>>> >>
>>>> >> On Thu, Dec 15, 2016, at 12:45 PM, Avra Sengupta wrote:
>>>> >>> Hi Sriram,
>>>> >>>
>>>> >>> I have already provided comments on the new patch. It seems
>>>> >>> this new patch while addressing merge cloflicts, has undone
>>>> >>> some previous patches. I suggest you send this patch on top of
>>>> >>> the previous patchset(http://review.gluster.org/#/c/15554/1[3])
>>>> >>> instead of creating a new one. This will allow you to view the
>>>> >>> diff between the new version and the previous version, and will
>>>> >>> give u an idea if the diff is something that you added in the
>>>> >>> patch or got added as part of merge conflict.
>>>> >>>
>>>> >>> Regards, Avra
>>>> >>>
>>>> >>> On 12/15/2016 12:09 PM, sriram at marirs.net.in wrote:
>>>> >>>> Hi Avra,
>>>> >>>>
>>>> >>>> I've update the patch according to the comments below. And
>>>> >>>> created a single patch which does the initial modularization.
>>>> >>>> Fixed the tab->space issue as well. I've raised a new review
>>>> >>>> request for the same bug ID here:
>>>> >>>> http://review.gluster.org/#/c/16138/[4]
>>>> >>>>
>>>> >>>> Added, Rajesh and You as the reviewers, let me know if I need
>>>> >>>> to do anything else.
>>>> >>>>
>>>> >>>> Could you have a look and let me know?
>>>> >>>>
>>>> >>>> (Sorry for the delay in creating this)
>>>> >>>>
>>>> >>>> Sriram
>>>> >>>>
>>>> >>>> On Thu, Oct 13, 2016, at 12:15 PM, Avra Sengupta wrote:
>>>> >>>>> Hi Sriram,
>>>> >>>>>
>>>> >>>>> The point I was trying to make is, that we want that each
>>>> >>>>> patch should compile by itself, and pass regression. So for
>>>> >>>>> that to happen, we need to consolidate these patches(the
>>>> >>>>> first three) into one patch, and have the necessary make file
>>>> >>>>> changes into that patch too.
>>>> >>>>>
>>>> >>>>> http://review.gluster.org/#/c/15554/[5]
>>>> >>>>> http://review.gluster.org/#/c/15555/[6]
>>>> >>>>> http://review.gluster.org/#/c/15556/[7]
>>>> >>>>>
>>>> >>>>> That will give us one single patch, that contains the changes
>>>> >>>>> of having the current code moved into separate files, and it
>>>> >>>>> should get compiled on it's own, and should pass regression.
>>>> >>>>> Also, we use spaces, and not tabs in the code. So we will
>>>> >>>>> need to get those changed too. Thanks.
>>>> >>>>>
>>>> >>>>> Regards, Avra
>>>> >>>>>
>>>> >>>>> On 10/12/2016 10:46 PM, sriram at marirs.net.in wrote:
>>>> >>>>>> Hi Avra,
>>>> >>>>>>
>>>> >>>>>> Could you let me know on the below request?
>>>> >>>>>>
>>>> >>>>>> Sriram
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>> On Tue, Oct 4, 2016, at 11:16 AM, sriram at marirs.net.in
>>>> >>>>>> wrote:
>>>> >>>>>>> Hi Avra,
>>>> >>>>>>>
>>>> >>>>>>> I checked the comment, the series of patches, (There are
>>>> >>>>>>> nine patches) for which I've posted for a review below.
>>>> >>>>>>> They've all the necessary makefiles to compile.
>>>> >>>>>>>
>>>> >>>>>>> Would you want me to consolidate all'em and post them as a
>>>> >>>>>>> single patch? (I thought that would be a little confusing,
>>>> >>>>>>> since it'd changes with different intentions).
>>>> >>>>>>>
>>>> >>>>>>> Sriram
>>>> >>>>>>>
>>>> >>>>>>>
>>>> >>>>>>> On Mon, Oct 3, 2016, at 03:54 PM, Avra Sengupta wrote:
>>>> >>>>>>>> Hi Sriram,
>>>> >>>>>>>>
>>>> >>>>>>>> I posted a comment into the first patch. It doesn't
>>>> >>>>>>>> compile by itself. We need to update the respective
>>>> >>>>>>>> makefiles to be able to compile it. Then we can introduce
>>>> >>>>>>>> the tabular structure in the same patch to have the
>>>> >>>>>>>> framework set for the zfs snapshots. Thanks.
>>>> >>>>>>>>
>>>> >>>>>>>> Regards, Avra
>>>> >>>>>>>>
>>>> >>>>>>>> On 09/30/2016 10:24 AM, sriram at marirs.net.in wrote:
>>>> >>>>>>>>> Hi Avra,
>>>> >>>>>>>>>
>>>> >>>>>>>>> Could you have a look into the below request?
>>>> >>>>>>>>>
>>>> >>>>>>>>> Sriram
>>>> >>>>>>>>>
>>>> >>>>>>>>>
>>>> >>>>>>>>> On Fri, Sep 23, 2016, at 04:10 PM, sriram at marirs.net.in
>>>> >>>>>>>>> wrote:
>>>> >>>>>>>>>> Hi Avra,
>>>> >>>>>>>>>>
>>>> >>>>>>>>>> Have submitted the patches for Modularizing snapshot,
>>>> >>>>>>>>>>
>>>> >>>>>>>>>> https://bugzilla.redhat.com/show_bug.cgi?id=1377437[8]
>>>> >>>>>>>>>>
>>>> >>>>>>>>>> This is the patch set:
>>>> >>>>>>>>>>
>>>> >>>>>>>>>> http://review.gluster.org/15554[9] This patch follows
>>>> >>>>>>>>>> the discussion from the gluster-devel mail chain of, ...
>>>> >>>>>>>>>> http://review.gluster.org/15555[10] Referring to
>>>> >>>>>>>>>> bugID:1377437, Modularizing snapshot for plugin based
>>>> >>>>>>>>>> modules. http://review.gluster.org/15556[11] - This is
>>>> >>>>>>>>>> third patch in the series for the bug=1377437
>>>> >>>>>>>>>> http://review.gluster.org/15557[12]
>>>> >>>>>>>>>> [BugId:1377437][Patch4]: Refering to the bug ID,
>>>> >>>>>>>>>> http://review.gluster.org/15558[13]
>>>> >>>>>>>>>> [BugId:1377437][Patch5]: Refering to the bug ID,
>>>> >>>>>>>>>> http://review.gluster.org/15559[14]
>>>> >>>>>>>>>> [BugId:1377437][Patch6]: Refering to the bug ID,
>>>> >>>>>>>>>> http://review.gluster.org/15560[15]
>>>> >>>>>>>>>> [BugId:1377437][Patch7]: Refering to the bug ID. * This
>>>> >>>>>>>>>> patch has some minor ...
>>>> >>>>>>>>>> http://review.gluster.org/15561[16]
>>>> >>>>>>>>>> [BugId:1377437][Patch8]: Refering to the bug ID, this
>>>> >>>>>>>>>> commit has minor fixes ...
>>>> >>>>>>>>>> http://review.gluster.org/15562[17]
>>>> >>>>>>>>>> [BugId:1377437][Patch9]: Refering to the bug ID, - Minor
>>>> >>>>>>>>>> header file ...
>>>> >>>>>>>>>>
>>>> >>>>>>>>>> Primarily, focused on moving lvm based implementation
>>>> >>>>>>>>>> into plugins. Have spread the commits across nine
>>>> >>>>>>>>>> patches, some of them are minors, except a couple of
>>>> >>>>>>>>>> ones which does the real work. Others are minors.
>>>> >>>>>>>>>> Followed this method since, it would be easy for a
>>>> >>>>>>>>>> review (accept/reject). Let me know if there is
>>>> >>>>>>>>>> something off the methods followed with gluster devel.
>>>> >>>>>>>>>> Thanks
>>>> >>>>>>>>>>
>>>> >>>>>>>>>> Sriram
>>>> >>>>>>>>>>
>>>> >>>>>>>>>> On Mon, Sep 19, 2016, at 10:58 PM, Avra Sengupta wrote:
>>>> >>>>>>>>>>> Hi Sriram,
>>>> >>>>>>>>>>>
>>>> >>>>>>>>>>> I have created a bug for this
>>>> >>>>>>>>>>> (https://bugzilla.redhat.com/show_bug.cgi?id=1377437[18])
>>>> >>>>>>>>>>> . The plan is that for the first patch as mentioned
>>>> >>>>>>>>>>> below, let's not meddle with the zfs code at all. What
>>>> >>>>>>>>>>> we are looking at is segregating the lvm based code as
>>>> >>>>>>>>>>> is today, from the management infrastructure (which is
>>>> >>>>>>>>>>> addressed in your patch), and creating a table based
>>>> >>>>>>>>>>> pluggable infra(refer to gd_svc_cli_actors[] in xlators/mgmt/glusterd/src/glusterd-
>>>> >>>>>>>>>>> handler.c and other similar tables in gluster code base
>>>> >>>>>>>>>>> to get a understanding of what I am conveying), which
>>>> >>>>>>>>>>> can be used to call this code and still achieve the
>>>> >>>>>>>>>>> same results as we do today.
>>>> >>>>>>>>>>>
>>>> >>>>>>>>>>> Once this code is merged, we can use the same infra to
>>>> >>>>>>>>>>> start pushing in the zfs code (rest of your current
>>>> >>>>>>>>>>> patch). Please let me know if you have further queries
>>>> >>>>>>>>>>> regarding this. Thanks.
>>>> >>>>>>>>>>>
>>>> >>>>>>>>>>> Regards, Avra
>>>> >>>>>>>>>>>
>>>> >>>>>>>>>>> On 09/19/2016 07:52 PM, sriram at marirs.net.in wrote:
>>>> >>>>>>>>>>>> Hi Avra,
>>>> >>>>>>>>>>>>
>>>> >>>>>>>>>>>> Do you have a bug id for this changes? Or may I raise
>>>> >>>>>>>>>>>> a new one?
>>>> >>>>>>>>>>>>
>>>> >>>>>>>>>>>> Sriram
>>>> >>>>>>>>>>>>
>>>> >>>>>>>>>>>>
>>>> >>>>>>>>>>>> On Fri, Sep 16, 2016, at 11:37 AM,
>>>> >>>>>>>>>>>> sriram at marirs.net.in wrote:
>>>> >>>>>>>>>>>>> Thanks Avra,
>>>> >>>>>>>>>>>>>
>>>> >>>>>>>>>>>>> I'll send this patch to gluster master in a while.
>>>> >>>>>>>>>>>>>
>>>> >>>>>>>>>>>>> Sriram
>>>> >>>>>>>>>>>>>
>>>> >>>>>>>>>>>>>
>>>> >>>>>>>>>>>>> On Wed, Sep 14, 2016, at 03:08 PM, Avra Sengupta
>>>> >>>>>>>>>>>>> wrote:
>>>> >>>>>>>>>>>>>> Hi Sriram,
>>>> >>>>>>>>>>>>>>
>>>> >>>>>>>>>>>>>> Sorry for the delay in response. I started going
>>>> >>>>>>>>>>>>>> through the commits in the github repo. I finished
>>>> >>>>>>>>>>>>>> going through the first commit, where you create a
>>>> >>>>>>>>>>>>>> plugin structure and move code. Following is the
>>>> >>>>>>>>>>>>>> commit link:
>>>> >>>>>>>>>>>>>>
>>>> >>>>>>>>>>>>>> https://github.com/sriramster/glusterfs/commit/7bf157525539541ebf0aa36a380bbedb2cae5440[19]
>>>> >>>>>>>>>>>>>>
>>>> >>>>>>>>>>>>>> FIrst of all, the overall approach of using plugins,
>>>> >>>>>>>>>>>>>> and maintaining plugins that is used in the patch is
>>>> >>>>>>>>>>>>>> in sync with what we had discussed. There are some
>>>> >>>>>>>>>>>>>> gaps though, like in the zfs functions the snap
>>>> >>>>>>>>>>>>>> brick is mounted without updating labels, and in
>>>> >>>>>>>>>>>>>> restore you perform a zfs rollback, which
>>>> >>>>>>>>>>>>>> significantly changes the behavior between how a lvm
>>>> >>>>>>>>>>>>>> based snapshot and a zfs based snapshot.
>>>> >>>>>>>>>>>>>>
>>>> >>>>>>>>>>>>>> But before we get into these details, I would
>>>> >>>>>>>>>>>>>> request you to kindly send this particular patch to
>>>> >>>>>>>>>>>>>> the g
>>>> 

>>>> 

>>>> 

>>>> 

>>>> *When*
>>>> Tue Dec 20, 2016 2:30pm – 3:30pm India Standard Time

>>>> *Calendar*
>>>> sriram at marirs.net.in

>>>> *Who*
>>>> •

>>>> asengupt at redhat.com - organizer
>>>> •

>>>> rjoseph at redhat.com
>>>> •

>>>> ram at fractalio.com
>>>> •

>>>> gluster-devel at gluster.org
>>>> •

>>>> sriram at marirs.net.in

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  19. https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fsriramster%2Fglusterfs%2Fcommit%2F7bf157525539541ebf0aa36a380bbedb2cae5440&sa=D&usd=2&usg=AFQjCNEo6QDZCzyg9yMQ4mqkY0zM6Z9krg
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