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Date: Mon, 3 Mar 2014 19:52:07 +0400
From: Andrey Repin <anrdaemon@yandex.ru>
Reply-To: cygwin@cygwin.com
Message-ID: <1686957830.20140303195207@yandex.ru>
To: Corinna Vinschen <cygwin@cygwin.com>
Subject: Re: Testers needed: New passwd/group handling in Cygwin
In-Reply-To: <20140303092114.GA26619@calimero.vinschen.de>
References: <20140227094951.GD2246@calimero.vinschen.de> <loom.20140227T134714-188@post.gmane.org> <20140227134632.GG2246@calimero.vinschen.de> <765945729.20140228031219@yandex.ru> <20140228120748.GN2246@calimero.vinschen.de> <87y50vc910.fsf@Rainer.invalid> <20140228201047.GC2381@calimero.vinschen.de> <CAKf2h5TjyeMxuw=XkqoGMC8A_f+LpSzcx5nof5ViUBQ-0sYXFg@mail.gmail.com> <20140228210804.GE2381@calimero.vinschen.de> <CAKf2h5QbafQq25jndf8RdDGWsp_MMfziBep2Pe1H7rA+OmOCdA@mail.gmail.com> <20140303092114.GA26619@calimero.vinschen.de>
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Greetings, Corinna Vinschen!

> No, this is not mintty's fault.  You have to understand that the
> request for information from the DC is called before the actual
> application had any chance to initialize,  This happens before
> the application has, in fact, been called from the Cygwin DLL.

> Therefore, if the three seconds are a burden, there are three choices
> going forward:

> - We reduce the timeout to 1 second in general, which could be a problem
>   when utilizing a slow VPN conncetion to the DC,

> - We allow the user to specify a timeout value and set the default to
>   1 second.

> - We stick to the 3 seconds and users should switch to files (/etc/passwd
>   /etc/group) when being offline from their DC.

> I'm really not sure what the best way is, I guess we as a community have
> to dice this out somehow.

I'd say it again, "sane defaults are better, than alot of options". 1 second
to CONNECT to domain server is more than enough time under normal
circumstances (for comparison, default DNS _roundtrip_ timeout is 2 seconds,
that for a whole conversation sequence).
Leave the connect timeout short, and if certain users are unable to cope with
slow connections to their domain controllers, they can use less pre-caching,
or switch to local files to speed up uid/gid resolution.


--
WBR,
Andrey Repin (anrdaemon@yandex.ru) 03.03.2014, <18:40>

Sorry for my terrible english...


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