[arch-general] An empty /etc/crontab file maybe needed bo be add in to package filesystem.

[郑文辉(Techlive Zheng)]

2012/3/18 Auguste Pop <auguste at gmail.com>:
> 2012/3/18 郑文辉(Techlive Zheng) <techlivezheng at gmail.com>:
>> 2012/3/18 Auguste Pop <auguste at gmail.com>:
>>> On Sun, Mar 18, 2012 at 6:15 PM, Auguste Pop <auguste at gmail.com> wrote:
>>>> On Mon, Feb 20, 2012 at 2:00 AM, Leonid Isaev <lisaev at umail.iu.edu> wrote:
>>>>> On Sun, 19 Feb 2012 07:01:52 +0800
>>>>> 郑文辉(Techlive Zheng) <techlivezheng at gmail.com> wrote:
>>>>>
>>>>>> 2012/2/19 郑文辉(Techlive Zheng) <techlivezheng at gmail.com>:
>>>>>> > I see, I just upgraded to 1.4.8 on 14 Feb 2012, The log must be
>>>>>> > generated by an former version of cronie. Now it seems all gone, and I
>>>>>> > can't provid the spamed log because I have cleaned them up 2 days ago.
>>>>>> >
>>>>>> > Let's see, if there are spams again, I will post here.
>>>>>> >
>>>>>> > 2012/2/19 Leonid Isaev <lisaev at umail.iu.edu>:
>>>>>> >> On Sat, 18 Feb 2012 15:26:46 +0800
>>>>>> >> 郑文辉(Techlive Zheng) <techlivezheng at gmail.com> wrote:
>>>>>> >>
>>>>>> >>> 2012/2/18 Heiko Baums <lists at baums-on-web.de>:
>>>>>> >>> > Am Sat, 18 Feb 2012 14:25:54 +0800
>>>>>> >>> > schrieb 郑文辉(Techlive Zheng) <techlivezheng at gmail.com>:
>>>>>> >>> >
>>>>>> >>> >> Due to cronie doesn't contain an /etc/crontab anymore, there are losts
>>>>>> >>> >> of msgs of missing crontab as shown below in errors.log.
>>>>>> >>> >>
>>>>>> >>> >> > /usr/sbin/crond[1236]: (root) CAN'T OPEN (/etc/crontab): No such
>>>>>> >>> >> > file or directory
>>>>>> >>> >
>>>>>> >>> > Such an empty /etc/crontab would belong into the package cronie and not
>>>>>> >>> > into the package filesystem. It's cronie specific since fcron, which I
>>>>>> >>> > use, doesn't need and provide one. The corresponding, but also not
>>>>>> >>> > necessary file for fcron would be /etc/fcrontab. And I'm not sure if
>>>>>> >>> > such an empty /etc/crontab would affect fcron.
>>>>>> >>> >
>>>>>> >>> > If cronie doesn't provide an empty /etc/crontab and doesn't run
>>>>>> >>> > without it, it is a bug in cronie.
>>>>>> >>> >
>>>>>> >>> > Heiko
>>>>>> >>>
>>>>>> >>> It runs well,but just spam the error.log and crond.log
>>>>>> >>> without /etc/crontab.
>>>>>> >>
>>>>>> >> Since 1.4.8 cronie doesn't need /etc/crontab... Can you show relevant
>>>>>> >> piece of /var/log/crond.log?
>>>>>> >>
>>>>>> >> --
>>>>>> >> Leonid Isaev
>>>>>> >> GnuPG key ID: 164B5A6D
>>>>>> >> Key fingerprint: C0DF 20D0 C075 C3F1 E1BE  775A A7AE F6CB 164B 5A6D
>>>>>>
>>>>>> Still have the problem:
>>>>>>
>>>>>> Feb 19 06:31:01 vbox02 /usr/sbin/crond[8394]: (root) CAN'T OPEN
>>>>>> (/etc/crontab): No such file or directory
>>>>>> Feb 19 06:32:01 vbox02 /usr/sbin/crond[8394]: (root) CAN'T OPEN
>>>>>> (/etc/crontab): No such file or directory
>>>>>
>>>>> This is odd... you must have something in /var/spool/cron. Otherwise please
>>>>> provide more info because your problem is not easily reproducible.
>>>>>
>>>>> --
>>>>> Leonid Isaev
>>>>> GnuPG key ID: 164B5A6D
>>>>> Key fingerprint: C0DF 20D0 C075 C3F1 E1BE  775A A7AE F6CB 164B 5A6D
>>>>
>>>> i have the same problem. i do have a file in /var/spool/cron/, because
>>>> i have some user cron jobs to do.
>>>>
>>>> here's some log from /var/log/crond.log
>>>>
>>>> Mar 18 18:04:30 pop crontab[8708]: (pop) BEGIN EDIT (pop)
>>>> Mar 18 18:04:32 pop crontab[8708]: (pop) REPLACE (pop)
>>>> Mar 18 18:04:32 pop crontab[8708]: (pop) END EDIT (pop)
>>>> Mar 18 18:05:01 pop /usr/sbin/crond[8619]: (root) CAN'T OPEN
>>>> (/etc/crontab): No such file or directory
>>>> Mar 18 18:05:01 pop /usr/sbin/crond[8619]: (pop) RELOAD (/var/spool/cron/pop)
>>>
>>> after some further test, it seems the error only occurs after crontab -e.
>>> i think this may be an upstream bug, if upstream says that
>>> /etc/crontab is not indispensable.
>>> anyway, showing one line of missing file in log is not a big deal. we
>>> don't constantly modify our crontab.
>>>
>>> best regards,
>>
>> My problem did not occur any more after I delete /var/spoon/cron/root,
>> I don't know what exactly cause the problem.
>
> actually, as far as i can see. this message appears only once every
> time i edit my crontab. it's not re-occurring. that's why i think this
> is not a big issue.
>
> best regards,

That is strange.

    Mar 18 05:34:01 vbox03 /usr/sbin/crond: (root) CAN'T OPEN
(/etc/crontab): No such file or directory
    Mar 18 05:52:01 vbox03 /usr/sbin/crond: (root) CAN'T OPEN
(/etc/crontab): No such file or directory
    Mar 18 22:13:01 vbox03 /usr/sbin/crond: (root) CAN'T OPEN
(/etc/crontab): No such file or directory

It started appear again, and I am sure there is no file under
/var/spool/cron or /var/spool/anacron.

I have tried to run "crontab -e", and this message seems not caused by
this command, it does not appear.