Re: CentOS 8.1 cron does not send mail

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On Mon, 6 Apr 2020 at 04:16, Tobias Kirchhofer <collect@shift.agency> wrote:

> On 5 Apr 2020, at 21:20, Tobias Kirchhofer wrote:
>
> >>>> we experience difficulties with crond behaviour sending mail since
> >>>> CentOS 8.1. The cron job is the same like we used in CentOS 7.
> >
> > Meanwhile we found the reason for the bug - actually we do not know if
> > it is related to a specific version of CentOS or a specific kind of
> > command as cron job.
> >
> > Let me explain what we have:
> >
> > - sssd for ssh login of ldap user
> > - crond for cron jobs :)
> >
> > If we stop sssd and restart crond cron starts to send mails again!
> >
> > We started with sssd on newly provisioned machines with CentOS 8. We
> > do not know if this is the same on CentOS 7.
> >
> > We send mails only to root. So no remote user is involved in cron.
> >
> > From our perspective it is a bug. How could we dive deeper to find the
> > specific reason?
>
> To sum it up:
>
> - Install CentOS 8
> - Enabled and started crond
> - crond sends emails properly
> - Enable and start sssd
> - crond stops sending emails and starts journal logging
> - Restart crond (or reboot)
> - crond sends emails and stops journal logging
>
> It is a matter of order. At boot time crond starts after sssd.
>
> This situation is bearable if you know it but has cost us some hours.
>
> Thanks for reading and sorry for this public clarification process ;)
>
> Tobias
>
>
So it sounds like that crond needs to have sssd as a pre-dependency so it
doesn't start until sssd is running?

-- 
Stephen J Smoogen.
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