Hi!
On all my servers I receive from time to time (usually once in 5-30 days)
email with subject subj :) and content:
---cut---
find: /var/spool/cron/lastrun/cron.hourly: No such file or directory
---cut---
I suppose this is because of race condition somethere in /usr/sbin/run-crons.
Root's default crontab is:
---cut---
*/15 * * * * test -x /usr/sbin/run-crons && /usr/sbin/run-crons
0 * * * * rm -f /var/spool/cron/lastrun/cron.hourly
0 8 * * * rm -f /var/spool/cron/lastrun/cron.daily
15 11 * * 6 rm -f /var/spool/cron/lastrun/cron.weekly
30 12 1 * * rm -f /var/spool/cron/lastrun/cron.monthly
---cut---
and I think if first two lines from crontab will start at same time and
/usr/sbin/run-crons will check for existence of lastrun/cron.hourly
__BEFORE__ rm will remove it then race condition happens and result in
that email sent to root.
Can anybody confirm this?
If I'm right, then maybe better to change last 4 lines in crontab to not
run in %15 minute:
---cut---
*/15 * * * * test -x /usr/sbin/run-crons && /usr/sbin/run-crons
5 * * * * rm -f /var/spool/cron/lastrun/cron.hourly
5 8 * * * rm -f /var/spool/cron/lastrun/cron.daily
20 11 * * 6 rm -f /var/spool/cron/lastrun/cron.weekly
35 12 1 * * rm -f /var/spool/cron/lastrun/cron.monthly
---cut---
--
WBR, Alex.
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