We have some cron jobs which cannot be dead otherise the consequence would be davastating. So we need to have an eye on the process and know exactly what cause the death of a job. So I would like to ask you for any possible reason for a job being dead and what are the symptoms, what are the value returned and where was the system error log stored.
We are using two servers. One is "Red Hat Enterprise Linux AS release 3 (Taroon Update 2)", another is AIX 7.1. I wonder if there are any OOM killer on by default.
We are using user account only so we cannot view syslog such as /var/log.
The job could be shell script with Java program inside.