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Re: Graphing Problem

by Mike Tremaine :: Rate this Message:

Peter Warasin wrote:

> hi
>
> Daniel Mota Leite (Higuita) wrote:
>
>> i found that my cron is locking up from time to time...
>> after some search i found that sometimes freshclam locks up when updating
>> and the fcron doesnt continue until the process is killed
>>
>
> uhm. this may be a general problem, if cronscripts may block, since
> run-parts blocks on each script and starts the next script only if the
> actual exits. the other ones will be delayed.. if freshclam hangs, all
> scripts will be delayed. and on the next cron-turn it will not be
> started anymore since it is already running. :/
>
> however, i tested with vixie cron on ubuntu, it's the same behaviour. i
> assume it's normal. tought about putting each cron script in background,
> but that maybe let us run into other problems (?)
>
>

I've never noticed this. Where is run-parts coming from? I notice on a
Redhat System run-parts is a shell script with this comment right at the top

# run-parts - concept taken from Debian

# keep going when something fails
set +e

I've never had a problem with items in cron.* blocking other cronjobs.
That obviously is a problem. Anyone want to try swapping the run-parts
from debianutils for a stock RedHat shell script?

-Mike

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