[Gluster-Maintainers] Backport for "Add back socket for polling of events immediately..."

Shyam srangana at redhat.com
Sun May 28 13:28:37 UTC 2017


On 05/28/2017 09:24 AM, Atin Mukherjee wrote:
>
>
> On Sun, May 28, 2017 at 1:48 PM, Niels de Vos <ndevos at redhat.com
> <mailto:ndevos at redhat.com>> wrote:
>
>     On Fri, May 26, 2017 at 12:25:42PM -0400, Shyam wrote:
>     > Or this one: https://review.gluster.org/15036 <https://review.gluster.org/15036>
>     >
>     > This is backported to 3.8/10 and 3.11 and considering the size and impact of
>     > the change, I wanted to be sure that we are going to accept this across all
>     > 3 releases?
>     >
>     > @Du, would like your thoughts on this.
>     >
>     > @niels, @kaushal, @talur, as release owners, could you weigh in as well
>     > please.
>     >
>     > I am thinking that we get this into 3.11.1 if there is agreement, and not in
>     > 3.11.0 as we are finalizing the release in 3 days, and this change looks
>     > big, to get in at this time.
>
>
> Given 3.11 is going to be a new release, I'd recommend to get this fix
> in (if we have time). https://review.gluster.org/#/c/17402/ is dependent
> on this one.

It is not a fix Atin, it is a more fundamental change to request 
processing, with 2 days to the release, you want me to merge this?

Is there a *bug* that will surface without this change or is it a 
performance enhancement?

>
>     >
>     > Further the change is actually an enhancement, and provides performance
>     > benefits, so it is valid as a change itself, but I feel it is too late to
>     > add to the current 3.11 release.
>
>     Indeed, and mostly we do not merge enhancements that are non-trivial to
>     stable branches. Each change that we backport introduces the chance on
>     regressions for users with their unknown (and possibly awkward)
>     workloads.
>
>     The patch itself looks ok, but it is difficult to predict how the change
>     affects current deployments. I prefer to be conservative and not have
>     this merged in 3.8, at least for now. Are there any statistics in how
>     performance is affected with this change? Having features like this only
>     in newer versions might also convince users to upgrade sooner, 3.8 will
>     only be supported until 3.12 (or 4.0) gets released, which is approx. 3
>     months from now according to our schedule.
>
>     Niels
>
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