Re: [Geary] Connection issues (IPv6 and DNS servers) and Geary sync speed

[Axel Ulrich <ulrich axel gmail com>]

FWIW I have been running dual stack IP with IPv6 preferred for quite a 
while and I have not been able to correlate issues as described to 
IPv6.  I am on GLib 2.60 and using HE tunnel for IPv6.

Axel

On Thu, Sep 12, 2019 at 7:51 AM, Michael Gratton <mike vee net> wrote:
> On Thu, 12 Sep, 2019 at 11:14, Federico Bruni <fede inventati org> 
> wrote:
> > I've recently noticed a flaky connection while using a streaming 
> > service.
> > I could not find any useful information in the logs, but I saw some 
> > reports about IPv6 issues with some routers so I decided to disable 
> > it. I've also added more than one DNS servers, to be safe.
> >
> > Since then I've never had any issue with the streaming service.
> > And Geary sync seems to be faster and reliable than before, both on 
> > my laptop and desktop installations (which have different network 
> > setups).
>
> Yeah, unfortunately broken IPv6 connections can still be a bit of a 
> pain. GLib 2.58 and 2.60 saw a good amount of work done to make IPv6 
> fallback work better by implementing the Happy Eyeballs approach[0], 
> but clearly things can still get wedged.
>
> If you are suffering some problems using IPv6 that goes away when 
> IPv6 is disabled and comes back when it is re-enabled when using 
> Geary or other GIO-based software like Web, it would be worth 
> reporting that in the GLib bug tracker so the underlying issue can be 
> tracked down.
>
> > One issue that it's still present: sometimes a new conversation with 
> > more than one message fails to load the second and following 
> > messages. The sync keeps running forever until I close Geary and 
> > restart it. This is annoying since I also lose some (not all) of 
> > previous delete/archive actions, which I have to repeat.
>
> This has been an ongoing issue with 0.13 and 3.32. I think you're 
> thinking about issue #212[1]? This cycle saw a fair bit of work in 
> addressing the underlying problem, and I think it might now be fixed, 
> so let me know how it goes with 3.34.
>
> //Mike
>
> [0] - <https://en.wikipedia.org/wiki/Happy_Eyeballs>
> [1] - <https://gitlab.gnome.org/GNOME/geary/issues/215>
>
> --
> ⊨ Michael Gratton, Percept Wrangler.
> ⚙ <http://mjog.vee.net/>
>
>
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