topic Process get killed before it finish in Operating System - HP-UX

Process get killed before it finish

soonyee_1 — Tue, 17 Jul 2001 01:49:34 GMT

When I submit a few processes, some of them will get killed before they finish. I tried a few times and everytime they get killed in different point. Those processes used up a lot of memory. I am using HPUX 10.2.

May I know what is the problem and how can I fix it.

Re: Process get killed before it finish

Michael Tully — Tue, 17 Jul 2001 01:59:27 GMT

Hi,

What type of processes are you submitting?
Are they shell script, command line arguments
or SQL or database related?

Please advise

Re: Process get killed before it finish

soonyee_1 — Tue, 17 Jul 2001 02:49:07 GMT

They are command line executable. I create a script to run the executable one after another.

Re: Process get killed before it finish

Michael Tully — Tue, 17 Jul 2001 03:11:30 GMT

Please provide an appropriate example.

Thanks

Re: Process get killed before it finish

soonyee_1 — Tue, 17 Jul 2001 04:47:05 GMT

Example:
quartus_cmd -f script1.tcl
quartus_cmd -f script2.tcl

quartus_cmd is a PLD development tool.

Re: Process get killed before it finish

Laurent Paumier — Tue, 17 Jul 2001 07:09:57 GMT

What signal do the processes get when they exit ?
If they use too much memory, maybe the system gets out of memory and kills them (SIGTERM) (the "out of memory" message should appear in the syslog (not sure)), or the process is badly written and does not check memory allocation (results in SIGSEGV or SIGBUS)...

Re: Process get killed before it finish

Bill Thorsteinson — Wed, 18 Jul 2001 05:24:55 GMT

If you start the processes in the background with
a command like:
myjob &
It will be killed when you log out.

Some shells will warn you when you log out with
jobs running in the background.

Check into the batch and nohup commands.