From owner-freebsd-ports@FreeBSD.ORG  Fri Sep 16 19:42:09 2011
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Date: Fri, 16 Sep 2011 21:41:53 +0200
From: Miroslav Lachman <000.fbsd@quip.cz>
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To: lev@FreeBSD.org
References: <CA99352D.219D1%freebsdlists-ports@chillibear.com>	<4E7392D6.4060309@wasikowski.net>
	<193113479.20110916223415@serebryakov.spb.ru>
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Cc: Eric <freebsdlists-ports@chillibear.com>,
	Matthias Andree <matthias.andree@gmx.de>,
	=?UTF-8?B?xYF1a2FzeiBXxIVzaWtvd3NraQ==?= <lukasz@wasikowski.net>,
	ports-list freebsd <freebsd-ports@freebsd.org>
Subject: Re: Re-starting daemons across upgrades? (was: Thank you (for	making
 the ports less boring).)
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Lev Serebryakov wrote:
> Hello, Łukasz.
> You wrote 16 сентября 2011 г., 22:17:58:
>
>> were not recompiled). Updating ports should never turn off or restart
>> service - thats my $0.02.
>   I agree with that. It is not difficult to REstart service by hands.
>
>    But stopping service is another story. Many ports/packages stop
>   service on dinstall/pkg_delete, and as result, if port with service
>   are upgraded in the middle of large upgrade session (and it is not
>   always possible to upgrade services SEPARATELY, due to dependences),
>   here is large window when old service is stopped, but new cannot be
>   started yet.

 From my point of view, it is better to not stop the service by 
deinstall phase, if it is not started by install.
If I do portmaster -a, deinstall of MySQL stops the mysql daemon and all 
dependent services are unavailable for a very long time - until all 
other packages are upgraded and administrator starts MySQL by hand. It 
can be hours.

But I like the idea based on portupgrade AFTERINSTALL / (AFTERUPGRADE) - 
some kind of custom hooks, where user can define actions for specific 
packages / services. It can be restart in some cases, or write something 
to log, or send an e-mail, or print some user defined warning text about 
dependencies needed to be upgraded / restarted... and so on.

Miroslav Lachman