[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: cron job runs twice
- To: "Tzafrir Cohen" <tzafrir(at-nospam)technion.ac.il>
- Subject: Re: cron job runs twice
- From: "Ehud Karni" <ehud(at-nospam)unix.simonwiesel.co.il>
- Date: Fri, 3 Aug 2001 18:44:39 +0300
- CC: linux-il(at-nospam)linux.org.il
- Delivered-To: linux.org.il-linux-il@linux.org.il
- In-reply-to: <Pine.GSO.3.95-heb-2.07.1010802124641.5282J-100000@csd> (messagefrom Tzafrir Cohen on Thu, 2 Aug 2001 23:18:25 +0300 (IDT))
- Organization: Simon & Wiesel Insurance agency
- References: <Pine.GSO.3.95-heb-2.07.1010802124641.5282J-100000@csd>
- Reply-to: ehud(at-nospam)unix.simonwiesel.co.il
- Sender: linux-il-bounce(at-nospam)cs.huji.ac.il
On Thu, 2 Aug 2001 23:18:25 +0300 (IDT), Tzafrir Cohen <tzafrir@technion.ac.il> wrote:
>
> A couple of days ago suddenly many processes got SIGKILL over a period of
> ~30 minutes. The only reason I can think of is some run-away process, that
> eventually got killed.
>
> I restarted a couple of the daemons that got killed (luckily sshd was not
> one of them. Crond was one of them). But ever since then I noticed a
> couple of problems. One of them, which I have not managed to solve:
In a situation like this (where the cause of the problem is unsure) I would
rather boot the machine then try to fix what I think is wrong.
> 1. the mrtg cron job occasionally gives me:
> ERROR: I guess another mrtg is running. A lockfile
> (/home/httpd/html/mrtg/mrtg.cfg_l) aged
> 1 seconds is hanging around. If you are sure that no other mrtg
> is running you can remove the lockfile
> cron running the same job twice?
> This doesn't always happen.
>
> On /etc/cron.d/local I have:
>
> # mrtg: update load graph every 5 minutes
> 0-59/5 * * * * tzafrir /usr/bin/mrtg /home/httpd/html/mrtg/mrtg.cfg
>
> "mrtg" is not mentioned otherwise under /etc/cron*
>
> 'crontab -l' for the user 'tzafrir' does not mention anything about mrtg.
>
> The username that appears in the subject of the cornjob message is
> 'tzafrir', so I figure it runs as 'tzafrir' . I suspect root is also
> running those cron jobs. It used to run them in the past, and I see files
> created by root.
>
> However there is no /var/spool/crontab/root , and in the general crontab
> this is not mentioned, as I said before.
>
> Anything I'm missing?
It seems that you have 2 crons concurrently running. Can you check if
other cron tasks are also running in pairs ?
Ehud.
--
Ehud Karni Mivtach - Simon Insurance /"\
Tel: +972-3-6212-757 Fax: +972-3-6292-544 \ / ASCII Ribbon Campaign
(USA) Fax and voice mail: 1-815-5509341 X Against HTML Mail
Better Safe Than Sorry / \
mailto:ehud@unix.simonwiesel.co.il http://www.simonwiesel.co.il
=================================================================
To unsubscribe, send mail to linux-il-request@linux.org.il with
the word "unsubscribe" in the message body, e.g., run the command
echo unsubscribe | mail linux-il-request@linux.org.il