[Gluster-Maintainers] gNFS vs NFS Ganesha performance (was: Re: [Gluster-devel] Proposal to change gNFSstatus

[Yaniv Kaul]

Spinning off the conversation, comments within

On Fri, Nov 22, 2019 at 8:28 AM Xie Changlong <zgrep at 139.com> wrote:

<snip>

> Interesting - we've seen far better performance with Ganesha v4.1 vs.
> gnfs.
>
> Would be great if you could share the details.
>
> vdbench 6/4  random read/write
>
>
>
You are comparing old versions of Gluster (assuming it's downstream, Red
Hat's version - it was released January 2018 - almost 2 years ago) and
certainly an old version of NFS Ganesha.
We believe newer releases are substantially better.
Just sharing the internal number of improvement we are seeing:
glusterfs-6.0-17 vs glusterfs-3.12.2-47 (rhel 7.7)
33.86%
1075.49%
232.88%
761.36%
91.15%
138.01%
-30.07%  <-- there's a bug about it.
28.59%
12.36%
-1.44%

(The RHEL release isn't up-to-date either)

Y.

Same for NFS Ganesha and Windows support.
>
> ganesha 2.5.5,  glusterfs 3.12.2, windows server 2003. Use windows nfsv3
> mount nfs-ganesha and test read/write with vdbench50406. Following is crash
> bt
>
> Btw, the environment has been redeployed, so i can't share more.
>
>
> It's difficult to counterpart without referring to specific issues. It's
> eveb to harder to fix them ;-)
>
> Gnfs is stable enough, we have about ~1000 servers, 4~24 servers for a
>> gluster cluster, about ~2000 nfs clients, all works fine till the last two
>> years expect some memleak issue.
>>
>
> Nice! Would be great for the Gluster community to learn more about the use
> case!
>
>
> It's my pleasure.
>
>
> Y.
>
>> Thanks
>>
>>     -Xie
>>
>> On Thu, Nov 21, 2019 at 5:31 AM Amar Tumballi <amarts at gmail.com> wrote:
>>
>>> Hi All,
>>>
>>> As per the discussion on https://review.gluster.org/23645, recently we
>>> changed the status of gNFS (gluster's native NFSv3 support) feature to
>>> 'Depricated / Orphan' state. (ref:
>>> https://github.com/gluster/glusterfs/blob/master/MAINTAINERS#L185..L189).
>>> With this email, I am proposing to change the status again to 'Odd Fixes'
>>> (ref: https://github.com/gluster/glusterfs/blob/master/MAINTAINERS#L22)
>>>
>>> TL;DR;
>>>
>>> I understand the current maintainers are not able to focus on
>>> maintaining it as the focus of the project, as earlier described, is
>>> keeping NFS-Ganesha based integration with glusterfs. But, I am
>>> volunteering along with Xie Changlong (currently working at Chinamobile),
>>> to keep the feature running as it used to in previous versions. Hence the
>>> status of 'Odd Fixes'.
>>>
>>> Before sending the patch to make these changes, I am proposing it here
>>> now, as gNFS is not even shipped with latest glusterfs-7.0 releases. I have
>>> heard from some users that it was working great for them with earlier
>>> releases, as all they wanted was NFS v3 support, and not much of features
>>> from gNFS. Also note that, even though the packages are not built, none of
>>> the regression tests using gNFS are stopped with latest master, so it is
>>> working same from at least last 2 years.
>>>
>>> I request the package maintainers to please add '--with gnfs' (or
>>> --enable-gnfs) back to their release script through this email, so those
>>> users wanting to use gNFS happily can continue to use it. Also points to
>>> users/admins is that, the status is 'Odd Fixes', so don't expect any
>>> 'enhancements' on the features provided by gNFS.
>>>
>>> Happy to hear feedback, if any.
>>>
>>> Regards,
>>> Amar
>>>
>>> _______________________________________________
>>> maintainers mailing list
>>> maintainers at gluster.org
>>> https://lists.gluster.org/mailman/listinfo/maintainers
>>>
>>
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