Am 07.07.2013 15:19, schrieb Steven Stern: > Since F19, the following have appeared in my daily logwatch: > > --------------------- Cron Begin ------------------------ > > **Unmatched Entries** > INFO (RANDOM_DELAY will be scaled with factor 37% if used.) > INFO (RANDOM_DELAY will be scaled with factor 4% if used.) > > ---------------------- Cron End ------------------------- > > What is the RANDOM_DELAY? I have a number of lines in crontab, all of > which seem to be kicking off at the correct times man anacron daily/weekly/monthly cronjobs are delayed randomly which is a good feault does not hurt normal users and gives a great benefit for virtualization clusters out of the box by prevent all guests at the same time doing daily cronjobs and overload the host __________________________________________________ [root@srv-rhsoft:~]$ cat /etc/anacrontab # /etc/anacrontab: configuration file for anacron # See anacron(8) and anacrontab(5) for details. SHELL=/usr/bin/bash PATH=/usr/sbin:/usr/bin MAILTO=root # the maximal random delay added to the base delay of the jobs RANDOM_DELAY=5 # the jobs will be started during the following hours only START_HOURS_RANGE=0-12 #period in days delay in minutes job-identifier command 1 5 cron.daily nice -n 19 run-parts /etc/cron.daily 7 25 cron.weekly nice -n 19 run-parts /etc/cron.weekly @monthly 45 cron.monthly nice -n 19 run-parts /etc/cron.monthly
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