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Full Discussion: cronjob not working intermittently
Top Forums UNIX for Advanced & Expert Users cronjob not working intermittently Post 302395705 by adderek on Tuesday 16th of February 2010 05:25:48 PM
Old 02-16-2010
1. Check your local mail account - errors from cron are sent there.

2. Check your perl scripts. Dumps, logs... anything.

3. Reconsider your application's architecture. Why you are using cron? Have you ever heard about event based processing?
I have seen applications that were executed every minute from cron to check if there is something to do for them...
Essentially that is causing extra application execution every 1 minute, extra server load that happen 24*60*60=86400 executions per day. Usually there is no processing - so we can have ex. 85000 pointless tasks consuming server's power.
Additionally some of those apps would have significant problems if the server went down for some time and some cron jobs were skipped.
That is not the case is you have event based processing (or at least - it shouldn't be the case assuming that the application's architecture and design are correct).

Good luck
 

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LEARN ABOUT DEBIAN

ldap2repository

LDAP2REPOSITORY(1)					User Contributed Perl Documentation					LDAP2REPOSITORY(1)

NAME

       ldap2repository - creating debian repositories cronjob for the GOsa FAI plugin.

SYNOPSIS

       ldap2repository [-hvnpej] [-c config] [-d outdir] [-r srvroot] [-i interface] [-a arch] [-P proxy]

DESCRIPTION

       ldap2repository is a script to create the cronjob for the local.  debian repositories needed by GOsa FAI plugin.

       -c	 LDAP config file (default: /etc/ldap/ldap.conf)
       -d	 output dir (default: /etc/gosa/fai)
       -h	 display this help and exit
       -n	 skip cleanup for mirrors
       -p	 show progress in cronjob
       -v	 be verbose
       -i	 network interface (default: eth0)
       -j	 create a new /etc/cron.d/goto-fai-backend
       -r	 server root (default: /srv/www)
       -e	 ignore small errors
       -a	 processor architecture (default: i386)
       -P	 proxy (default: none)

BUGS

       Please report any bugs, or post any suggestions, to the GOsa mailing list <gosa-devel@oss.gonicus.de> or to
       <https://oss.gonicus.de/labs/gosa>

LICENCE AND COPYRIGHT

       This code is part of GOsa (<http://www.gosa-project.org>)

       Copyright (C) 2005-2006 Jan-Marek Glogowski <glogow@fbihome.de>
		     2007-2010 The GOsa project <gosa-devel@oss.gonicus.de>

       This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

perl v5.10.0							    2010-05-19							LDAP2REPOSITORY(1)
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