Re: Suppressing unavailable imap server by default

Re: Suppressing unavailable imap server by default

[Ted Zlatanov]

On Wed, 21 Sep 2016 15:48:58 +0200 Michael Albinus <michael.albinus@gmx.de> wrote: 

MA> How could I change my configuration, that this timeout is reduced? Or
MA> that prior to connecting the server via imap there is a check, whether
MA> the server is reachable?

MA> Extra bonus if I could configure it such a way that I don't need to
MA> confirm that the server isn't reachable.

On Thu, 22 Sep 2016 10:25:26 +0800 Eric Abrahamsen <eric@ericabrahamsen.net> wrote: 

EA> What I think would be preferable would be if a server status of "closed"
EA> persisted between Gnus restarts. Then you could just leave it closed,
EA> and open it manually when you decide you want to check news.

Manual work always sucks :)

I think a new server parameter `check-reachable' or something like that
would make sense. It could be a number (indicating connection timeout
time) or a path (a command to run to check connectivity).

I'll follow up on emacs-devel regarding socket timeouts in general. I
think the improvement has to be made in the C core.

Ted

Re: Suppressing unavailable imap server by default

[Michael Albinus]

Ted Zlatanov <tzz@lifelogs.com> writes:

Hi Ted,

> I think a new server parameter `check-reachable' or something like that
> would make sense. It could be a number (indicating connection timeout
> time) or a path (a command to run to check connectivity).
>
> I'll follow up on emacs-devel regarding socket timeouts in general. I
> think the improvement has to be made in the C core.

This would be great! Shall I raise a wishlist bug report in order to
trace the progress?

> Ted

Best regards, Michael.

Re: Suppressing unavailable imap server by default

[Ted Zlatanov]

On Thu, 22 Sep 2016 15:27:03 +0200 Michael Albinus <michael.albinus@gmx.de> wrote: 

MA> Ted Zlatanov <tzz@lifelogs.com> writes:
MA> Hi Ted,

>> I think a new server parameter `check-reachable' or something like that
>> would make sense. It could be a number (indicating connection timeout
>> time) or a path (a command to run to check connectivity).
>> 
>> I'll follow up on emacs-devel regarding socket timeouts in general. I
>> think the improvement has to be made in the C core.

MA> This would be great! Shall I raise a wishlist bug report in order to
MA> trace the progress?

Sure. The C core has to support this parameter first, so there's two
wishlist bugs actually. Would you mind creating them?

Ted

Re: Suppressing unavailable imap server by default

[Michael Albinus]

Ted Zlatanov <tzz@lifelogs.com> writes:

Hi Ted,

>>> I think a new server parameter `check-reachable' or something like that
>>> would make sense. It could be a number (indicating connection timeout
>>> time) or a path (a command to run to check connectivity).
>>> 
>>> I'll follow up on emacs-devel regarding socket timeouts in general. I
>>> think the improvement has to be made in the C core.
>
> MA> This would be great! Shall I raise a wishlist bug report in order to
> MA> trace the progress?
>
> Sure. The C core has to support this parameter first, so there's two
> wishlist bugs actually. Would you mind creating them?

Finally, I've created bug#24752. For the problem in C core, I haven't
done anything because I don't believe I could express sufficiently what
shall be done.

> Ted

Best regards, Michael.

Re: Suppressing unavailable imap server by default

[Eric Abrahamsen]

Michael Albinus <michael.albinus@gmx.de> writes:

> Hi,
>
> maybe it is a known technique, but even after RTFM I couldn't find it ...
>
> I have configured an imap server which is reachable only sometimes (when
> I have entered the company's lan). Connecting it via gnus takes always
> ~2 min, until there is a timeout, and the server is ignored ("denied" in
> the *Server* buffer).
>
> How could I change my configuration, that this timeout is reduced? Or
> that prior to connecting the server via imap there is a check, whether
> the server is reachable?
>
> Extra bonus if I could configure it such a way that I don't need to
> confirm that the server isn't reachable.
>
> Thanks, and best regards, Michael.

I think what people do is to make sure all the groups belonging to that
server are set at a fairly high level, and then, when starting Gnus and
checking for news, only check at a lower level. I have wrapper functions
that call (gnus 4) and (gnus-group-get-new-news 4), and set less
interesting servers at level 5.

What I think would be preferable would be if a server status of "closed"
persisted between Gnus restarts. Then you could just leave it closed,
and open it manually when you decide you want to check news.

Eric

Suppressing unavailable imap server by default

[Michael Albinus]

Hi,

maybe it is a known technique, but even after RTFM I couldn't find it ...

I have configured an imap server which is reachable only sometimes (when
I have entered the company's lan). Connecting it via gnus takes always
~2 min, until there is a timeout, and the server is ignored ("denied" in
the *Server* buffer).

How could I change my configuration, that this timeout is reduced? Or
that prior to connecting the server via imap there is a check, whether
the server is reachable?

Extra bonus if I could configure it such a way that I don't need to
confirm that the server isn't reachable.

Thanks, and best regards, Michael.