[Gluster-devel] Question on merging zfs snapshot support into the mainline glusterfs

Kaushal M kshlmster at gmail.com
Mon Jun 20 07:03:25 UTC 2016

On Mon, Jun 20, 2016 at 11:38 AM, B.K.Raghuram <bkrram at gmail.com> wrote:
> We had hosted some changes to an old version of glusterfs (3.6.1) in order
> to incorporate ZFS snapshot support for gluster snapshot commands. These
> have been done quite a while back and were not forward ported to newer
> versions of glusterfs. I have a couple of questions on this :
> 1. If one needs to incorporate these changes in their current or modified
> form into the glusterfs master, what is the procedure to do so?
> 2. Since the above process may take longer to roll in, we would like to get
> the changes into at least the latest version of the 3.6 branch. In order to
> do this, I tried the following and needed some help :
> I tried to apply the two ZFS relates commits
> (https://github.com/fractalio/glusterfs/commits/release-3.6) to the latest
> gluster code in the  guster-3.6 branch. I hit  one merge conflict per
> commit, both in xlators/mgmt/glusterd/src/glusterd-snapshot.c. The attached
> glusterd-snapshot.c_1 is the file with the merge conflicts after applying
> the first commit and  glusterd-snapshot.c_2 is the one applying the second
> commit. In order to process, I removed the HEAD changes in each of the merge
> conflicts and proceeded just to see if anything else breaks but it went
> through. glusterd-snapshot.c_1_corrected and glusterd-snapshot.c_2_corrected
> and the corresponding files after removing the merge conflicts.
> The question I had is, are the changes that I made to correct the merge
> conflicts safe? If not, could someone provide some suggestions on how to
> correct the two conflicts?
> The file cmd_log contains the history of commands that I went through in the
> process..

Thanks for sharing this Ram!

Rajesh is the right person to answer your questions. As a GlusterD
maintainer, I'll go through this and see if I can answer as well.

> Thanks,
> -Ram
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