[CentOS] cron.hourly runs twice

Timothy Murphy gayleard at eircom.net
Tue Mar 16 15:15:16 UTC 2010

For some reason I cannot fathom,
cron.hourly runs twice each hour
on one of my two CentOS-5.4 systems,
as reported in /var/log/cron:
Mar 16 14:01:01 helen crond[27833]: (root) CMD (run-parts /etc/cron.hourly)
Mar 16 14:01:01 helen crond[27834]: (root) CMD (run-parts /etc/cron.hourly)
On the other it just runs once, as expected.
Mar 16 13:01:01 althea crond[23373]: (root) CMD (run-parts /etc/cron.hourly)
Mar 16 14:01:01 althea crond[23553]: (root) CMD (run-parts /etc/cron.hourly)
Mar 16 15:01:01 althea crond[23695]: (root) CMD (run-parts /etc/cron.hourly)

This doesn't have any bad effect,
but it does run the scripts in /etc/cron.hourly twice.

I just wonder if anyone has come across this curiosity?
Or can suggest any possible cause.

Timothy Murphy  
e-mail: gayleard /at/ eircom.net
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

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