Michael Grimm wrote on 2018/01/07 15:31:
Hi,

I am following 11-STABLE and therefore upgrading my system quite frequently. 
During that process I do recompile all ports installed by poudriere and upgrade 
all ports after reboot.

Today I stumbled over an IMHO weird behaviour of the spamassassin's 
installation process, that stops a running spamd daemon without restarting. 
Even worse, the user will not be informed about that procedure:

        mail> /usr/local/etc/rc.d/sa-spamd status
        spamd is running as pid 13859.

        mail> pkg upgrade -fy spamassassin
        Updating poudriere repository catalogue...
        poudriere repository is up to date.
        All repositories are up to date.
        Checking integrity... done (0 conflicting)
        The following 1 package(s) will be affected (of 0 checked):

        Installed packages to be REINSTALLED:
                spamassassin-3.4.1_11 [poudriere]

        Number of packages to be reinstalled: 1
        [mail] [1/1] Reinstalling spamassassin-3.4.1_11...
        ===> Creating groups.
        Using existing group 'spamd'.
        ===> Creating users
        Using existing user 'spamd'.
        [mail] [1/1] Extracting spamassassin-3.4.1_11: 100%
[*]     Stopping spamd.
        Waiting for PIDS: 13859, 13859.
        You may need to manually remove 
/usr/local/etc/mail/spamassassin/local.cf if it is no longer needed.
        Message from spamassassin-3.4.1_11:

        
==========================================================================

        You should complete the following post-installation tasks:

                1) Read /usr/local/share/doc/spamassassin/INSTALL
                   and /usr/local/share/doc/spamassassin/UPGRADE
                   BEFORE enabling SpamAssassin for important changes

                2) Edit the configuration in /usr/local/etc/mail/spamassassin,
                   in particular /usr/local/etc/mail/spamassassin/init.pre
                   You may get lots of annoying (but harmless) error messages
                   if you skip this step.

                3) To run spamd, add the following to /etc/rc.conf:
                   spamd_enable="YES"

                4) If this is a new installation, you should run sa-update
                   and sa-compile. If this isn't a new installation, you
                   should probably run those commands on a regular basis
                   anyway.

                5) Install mail/spamass-rules if you want some third-party
                   spam-catching rulesets

        SECURITY NOTE:
        By default, spamd runs as root (the AS_ROOT option). If you wish
        to change this, add the following to /etc/rc.conf:

                spamd_flags="-u spamd -H /var/spool/spamd"

        
==========================================================================

        mail> /usr/local/etc/rc.d/sa-spamd status
        spamd is not running.

Ok, one might notice that the daemon has been stopped [*], but section "You should 
complete …" fails to mention, that one needs to restart the daemon after upgrading.


Please correct me if I am wrong but I have always been under the impression 
that stopping a daemon whilst upgrading violates conventions?

There are no consensus about what services should do on deinstall or upgrade. That's why there is such a mess in ports / packages. Some did nothing (my preferred way), some stop (but did not start) the service, some modify user edited config files (removing / disabling modules in httpd.conf so Apache is broken on each upgrade of module(s)).

Miroslav Lachman

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