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bug#36517: 'guix deploy' does not restart services

From: Ludovic Courtès
Subject: bug#36517: 'guix deploy' does not restart services
Date: Fri, 12 Jul 2019 22:43:22 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.2 (gnu/linux)


address@hidden (Jakob L. Kreuze) skribis:

> Ludovic Courtès <address@hidden> writes:
>> Hi,
>> address@hidden (Jakob L. Kreuze) skribis:
>>> This issue is described in more detail at [1]. Essentially, 'guix
>>> deploy' is will happily load and start new services, as well as unload
>>> obsolete services, but does nothing to restart valid services that are
>>> already running.
>> That’s not a bug: ‘guix system reconfigure’ does not restart already
>> running services, simply because it cannot tell whether now is a good
>> time to restart them.  It’s a decision that’s left to the system
>> administrator.
>> However, note that ‘guix system reconfigure’ loads “replacements” for
>> each Shepherd service, such that next time you run ‘herd restart FOO’,
>> you spawn that new version of FOO.
>> Does that make sense?
> Yes, that does make sense. I suppose the way I worded the initial report
> wasn't great; I opened this to track support for 'restart-strategy' as
> described in #33508 in 'guix deploy'. This takes care of the question of
> when a good time to restart the service would be.

Oh, I see.  To me that’s completely orthogonal to ‘guix deploy’ though,
in that ‘guix system reconfigure’ and ‘guix deploy’ should use the same
code for that.


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