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Bug 1511255 - cronie @reboot does not work: should run after ypbind, after autofs
Summary: cronie @reboot does not work: should run after ypbind, after autofs
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: cronie
Version: 7.4
Hardware: Unspecified
OS: Unspecified
Target Milestone: rc
: ---
Assignee: Marcel Plch
QA Contact: qe-baseos-daemons
Depends On:
TreeView+ depends on / blocked
Reported: 2017-11-09 01:04 UTC by Konstantin Olchanski
Modified: 2019-03-14 14:07 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2019-03-14 14:07:49 UTC
Target Upstream Version:

Attachments (Terms of Use)

Description Konstantin Olchanski 2017-11-09 01:04:08 UTC
User @reboot crontab entries do not work because cronie runs them before ypbind and autofs have been started, the autofs-mounted /home/$USER does not exist yet.

At they have added ypbind/service, but maybe autofs.service also should be added.

$ rpm -q cronie


Comment 2 Konstantin Olchanski 2017-11-09 01:16:16 UTC
Confirmed. After adding ypbind.service and autofs.service, @reboot seems to work correctly. K.O.

# more /usr/lib/systemd/system/crond.service
Description=Command Scheduler
After=auditd.service systemd-user-sessions.service ypbind.service autofs.service

ExecStart=/usr/sbin/crond -n $CRONDARGS
ExecReload=/bin/kill -HUP $MAINPID




Comment 3 Marcel Plch 2019-01-22 14:49:22 UTC
I have failed to reproduce this bug. Steps taken in attempt to reproduce this:

1) remove /home from /etc/fstab
2) add "/- /etc/auto.test" to /etc/auto.master
3) add "/home -fstype=auto :/dev/sda3" to /etc/auto.test
4) $ crontab -e
@reboot echo "hello" >> /home/${USER}/hello
5) $ reboot
6) $ cat hello

I have tried multiple reboots in case it was a race condition, but it seems to work all the time.

Comment 4 Marcel Plch 2019-03-04 15:07:06 UTC
Please, provide more data on this bug, otherwise it will be closed WONTFIX in 2 weeks.

Comment 5 Konstantin Olchanski 2019-03-06 18:27:11 UTC
Hi, you tested the wrong bug. The problem I see is caused by wrong starting order between nis, autofs and cron (should start in this order).

In you test, it does not look like you examined the order that these programs started and
you did not confirm that this order is enforced by systemd unit file settings (in el7, it is NOT, I confirm this).

Regardless, you can now close this bug. I have developed by own solution which does not require any
changes to the official packages:

el7 has a bug - cron @reboot entries for normal users before autofs is ready, so if the home directory is on autofs/NFS, it is usually cannot be accessed yet and the cron job fails. If MIDAS is started by user cron @reboot, it will not be started (there *will* be an error message in /var/log/cron).

mkdir /etc/systemd/system/crond.service.d
echo -e "[Unit]\nAfter=ypbind.service autofs.service\n" > /etc/systemd/system/crond.service.d/local.conf
systemctl daemon-reload
systemctl cat crond.service



Comment 6 Marcel Plch 2019-03-14 14:07:49 UTC
Given that another solution not requiring changes has been found, I am closing this as resolved upstream.

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