cron does not start the need job

Hi,
can you please help me with one problem?

There is some server, there are a lot of AIX applications which run on this server under different UserIDs.
These applications starts via crontab.
From time to time some application doesn't start.

What can this "not-action" be dependent on?
At that day of week there are not other applications which should start at the same time.

Thank you in advance.

Anta

Are you sure that they actually aren't starting? Or are they just failing? How do you have your cron reporting configured? Are you logging all job executions?

Cheers,

Keith

Thank you, Keith.

Yes, I'm sure that application didn't started.
The application includes some ksh scripts, and they all put down report and log info.
The application runs every day (started via cron), and we haven't faced such problem for 3 years. But last time there were two such cases when it didn't started. There are a lot of appls on the server which starts via cron, but these two cases were only related to the same appl.

It looks like sometimes cron does not see the exact time of this appl start.
I'm not an aix expert, and I cannot explain it.

Anta

Does anything show up in /var/adm/cron/log during that period of time? Mind sharing your crontab and any non-proprietary info you can on the scripts themselves?

Cheers,

Keith

http://www.unix.com/showthread.php?t=13527

Thank you.

To my regret I cannot access to /var/adm and /var/spool/cron/crontabs.

Anta