topic Re: how kill a process with PPID1 in Operating System - HP-UX

how kill a process with PPID1

Wood_2 — Mon, 31 Jan 2005 08:32:30 GMT

Hello

I've process dscmc (for IBM Tsm) with a ppid 1.
I can't kill the process with kill -9.

How can i proceed, to destroy this entry without reboot.
I've HPUX 11.0

Thank you for your help

Nicolas

Re: how kill a process with PPID1

Pete Randall — Mon, 31 Jan 2005 08:39:34 GMT

Nicolas,

Sorry, if kill -9 won't do it, there's no way. Either the process is waiting on I/O to complete or it's a true zombie. If it is waiting on I/O, there's a small chance you could kill it if you could figure out how to satisfy the I/O request, but that's not very likely. A reboot is the only thing that will get rid of these.

Pete

Re: how kill a process with PPID1

Peter Godron — Mon, 31 Jan 2005 08:40:57 GMT

Nicolas,
kill -9 should kill the job.
Once the process description goes to
< defunct> they normally only disappear after a reboot.
Regards

Re: how kill a process with PPID1

Wood_2 — Mon, 31 Jan 2005 08:46:56 GMT

the process is not defunct.
How be sure that the process is waiting an IO.

The process backup work trough the san.

Re: how kill a process with PPID1

Peter Godron — Mon, 31 Jan 2005 08:52:20 GMT

Hi,
tusc may help you identify what is going on.
http://hpux.asknet.de/hppd/hpux/Sysadmin/tusc-7.7/
Regards

Re: how kill a process with PPID1

Wood_2 — Mon, 31 Jan 2005 08:54:35 GMT

can i use tusc, the process is already started.

Re: how kill a process with PPID1

Elmar P. Kolkman — Mon, 31 Jan 2005 09:04:37 GMT

It might also be the process is waiting for its children. You might check out if there are any by doing 'ps -ef | grep ' and look if those can be killed...

Re: how kill a process with PPID1

Tim D Fulford — Mon, 31 Jan 2005 11:23:42 GMT

Hi

I've seen processes hang around after kill -9 and it is because something is keeping them alive (like child proces IO ...). along these lines check that things like Stale NFS is not part of the problem.

Regards

Tim

Re: how kill a process with PPID1

Wood_2 — Mon, 31 Jan 2005 12:02:27 GMT

It seems to be io problem.

We try to reboot the server this night to free the process.

Thank you for your help.