Re: mod_perl2 + fork + DBI = Chaos

Perrin Harkins wrote:
> On Mon, Jan 25, 2010 at 2:41 PM, Tosh Cooey <[email protected]> wrote:
>> Just to follow up on this before anyone spends any time caring about it, the
>> seg faults could also be because one of the zombie apache2 processes I've
>> spawned like a Gremlin is answering the request and well...
> 
> I don't think so.  That's not how apache works.
> 
>> So, if I've done the fork properly and pretend I have apache PIDs 1..10
>> running, and the child is 11 and it does it's thing and hits CORE::exit(0)
>> should that process then die?
> 
> Yes.
> 
> Here's some advice about using DBI with forking:
> http://www.perlmonks.org/?node_id=752289


Thanks Perrin, the forking, my child got a PID of 30033 and then 
afterwards when I checked the processes (ps) for 30033 I see:

[apache2] <defunct>

Is that what's supposed to happen?

That PM thread seems to indicate that I must disconnect every DBH, not 
just the ones that I will use.  That's correct?  It seems 
counterintuitive to disconnect all DBHs.  Are you also suggesting the 
use of Parallel::ForkManager for forks?

I hope at least I have the forking properly working so I can concentrate 
on the DBI issue...

Tosh


-- 
McIntosh Cooey - Twelve Hundred Group LLC - http://www.1200group.com/