Re: 8.1: Cron ignoring crontab updates
Arthur Chance free...@qeng-ho.org wrote: On 09/03/10 09:19, per...@pluto.rain.com wrote: Chris Reesutis...@gmail.com wrote: You have to SIGHUP cron, not restart it. # killall -HUP cron Isn't crontab(1) supposed to do that, without separate intervention? From man cron Additionally, cron checks each minute to see if its spool directory's modification time (or the modification time on /etc/crontab) has changed, and if it has, cron will then examine the modification time on all crontabs and reload those which have changed. Thus cron need not be restarted whenever a crontab file is modified. Note that the crontab(1) command updates the modification time of the spool directory whenever it changes a crontab. OK, I had the mechanism wrong. The main point is, it should not require manual intervention by an administrator to get cron(8) to notice when crontab(1) has revised a crontab. The one thing I can think of, short of a bug, is that a change made less than 1 minute before the newly-added or -removed event might not be noticed in time. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: 8.1: Cron ignoring crontab updates
Chris Rees utis...@gmail.com wrote: You have to SIGHUP cron, not restart it. # killall -HUP cron Isn't crontab(1) supposed to do that, without separate intervention? On 2 Sep 2010 21:11, patrick gibblert...@gmail.com wrote: I recently upgraded a FreeBSD 7.0 system to 8.1-RELEASE (via freebsd-update) and am experiencing the strangest cron problem I have ever seen. My cron jobs run, but if I make any changes to my crontab, cron does not pick them up; it continues to operate based on the snapshot of crontabs it loaded when cron was started up ... Has anyone come across this? Yes, so long ago I no longer remember which Unix flavor it was on. Could have been SunOs 3.5 or 4.x, some version of Solaris, UnixWare, or even FreeBSD 4.x. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: 8.1: Cron ignoring crontab updates
On 09/03/10 09:19, per...@pluto.rain.com wrote: Chris Reesutis...@gmail.com wrote: You have to SIGHUP cron, not restart it. # killall -HUP cron Isn't crontab(1) supposed to do that, without separate intervention? From man cron Additionally, cron checks each minute to see if its spool directory's modification time (or the modification time on /etc/crontab) has changed, and if it has, cron will then examine the modification time on all crontabs and reload those which have changed. Thus cron need not be restarted whenever a crontab file is modified. Note that the crontab(1) command updates the modification time of the spool directory whenever it changes a crontab. From the original post crontab seems to be working, so all I can suggest is to ls -ld /var/cron/tabs before and after using crontab -e and see if the modtime is being changed correctly. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: 8.1: Cron ignoring crontab updates
Yes, it's definitely updating: [r...@juno /var/cron/tabs]# ls -ald /var/cron/tabs drwx-- 2 root wheel 512 Sep 2 12:49 /var/cron/tabs And after editing my crontab: [r...@juno /var/cron/tabs]# ls -ald /var/cron/tabs drwx-- 2 root wheel 512 Sep 3 10:25 /var/cron/tabs I've been using FreeBSD since version 4, and this has never once been an issue, nor is this an issue on a system with a fresh install of 8.1. Patrick On Fri, Sep 3, 2010 at 2:37 AM, Arthur Chance free...@qeng-ho.org wrote: On 09/03/10 09:19, per...@pluto.rain.com wrote: Chris Reesutis...@gmail.com wrote: You have to SIGHUP cron, not restart it. # killall -HUP cron Isn't crontab(1) supposed to do that, without separate intervention? From man cron Additionally, cron checks each minute to see if its spool directory's modification time (or the modification time on /etc/crontab) has changed, and if it has, cron will then examine the modification time on all crontabs and reload those which have changed. Thus cron need not be restarted whenever a crontab file is modified. Note that the crontab(1) command updates the modification time of the spool directory whenever it changes a crontab. From the original post crontab seems to be working, so all I can suggest is to ls -ld /var/cron/tabs before and after using crontab -e and see if the modtime is being changed correctly. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: 8.1: Cron ignoring crontab updates
You have to SIGHUP cron, not restart it. # killall -HUP cron Chris Sorry for top-posting, Android won't let me quote, but K-9 can't yet do threading. On 2 Sep 2010 21:11, patrick gibblert...@gmail.com wrote: I recently upgraded a FreeBSD 7.0 system to 8.1-RELEASE (via freebsd-update) and am experiencing the strangest cron problem I have ever seen. My cron jobs run, but if I make any changes to my crontab, cron does not pick them up; it continues to operate based on the snapshot of crontabs it loaded when cron was started up. If I restart cron (/etc/rc.d/cron restart), the changes are then picked up, but again, any subsequent changes are ignored. I don't see any issues with the permissions, and when I edit a crontab, it says crontab: installing new crontab, and the /var/log/cron log shows BEGIN EDIT, REPLACE, and END EDIT. I'm somewhat at a loss to figure out where the disconnect is, and it's impractical for me to have to restart cron any time any user updates their crontab. Has anyone come across this? Patrick ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
