Mailing List Archive: signal handler?

signal handler?

Feb 19, 2000, 9:41 AM

Post #1 of 4 (1538 views)

Anybody know of any tricks to trigger HUP and USR1 signals in the parent
process via the API? I was thinking of writing a handler to restart, or
graceful restart, the server (access controlled of course :) but I haven't
seen anything in the API that'll do that. Thoughts?
-Ian

--
Salon Internet http://www.salon.com/
Manager, Software and Systems "Livin' La Vida Unix!"
Ian Kallen <idk@salon.com> / AIM: iankallen / Fax: (415) 354-3326

Re: signal handler? [ In reply to ]

ELB at iname

Feb 19, 2000, 10:09 AM

Post #2 of 4 (1495 views)

Permalink

> Anybody know of any tricks to trigger HUP and USR1 signals in the parent
> process via the API?

I don't believe there is one since kill() does (should do) the job
perfectly.
ELB

--
Eric L. Brine | Chicken: The egg's way of making more eggs.
ELB@iname.com | Do you always hit the nail on the thumb?
ICQ# 4629314 | An optimist thinks thorn bushes have roses.

Re: signal handler? [ In reply to ]

spidaman at salon

Feb 19, 2000, 10:14 AM

Post #3 of 4 (1491 views)

Permalink

Today, Eric L. Brine <ELB@iname.com> frothed and gesticulated about Re:...:
> > Anybody know of any tricks to trigger HUP and USR1 signals in the parent
> > process via the API?
>
> I don't believe there is one since kill() does (should do) the job
> perfectly.

Duh, but not remotely. I'm trying to avoid snmp or some other evil to
remotely reconfigure the server. Having a shell open on every machine in
a cluster is a drag.

--
Salon Internet http://www.salon.com/
Manager, Software and Systems "Livin' La Vida Unix!"
Ian Kallen <idk@salon.com> / AIM: iankallen / Fax: (415) 354-3326

Re: signal handler? [ In reply to ]

ELB at iname

Feb 19, 2000, 10:45 AM

Post #4 of 4 (1492 views)

Permalink

> > > Anybody know of any tricks to trigger HUP and USR1 signals in the
> > > parent process via the API?
> >
> > I don't believe there is one since kill() does (should do) the job
> > perfectly.
>
> Duh, but not remotely. I'm trying to avoid snmp or some other evil to
> remotely reconfigure the server. Having a shell open on every machine
> in a cluster is a drag.

I must have missed the requirement of being able to do it remotely in your
first message. Then again, I believed you asked for an API call, and you
can't do those remotely either!

In that case, you can write a mod_perl script which calls kill()?

--
Eric L. Brine | Chicken: The egg's way of making more eggs.
ELB@iname.com | Do you always hit the nail on the thumb?
ICQ# 4629314 | An optimist thinks thorn bushes have roses.