comment on

Any::Daemon seems alright, and Parallel::ForkManager might also be a reasonable choice for fork-model multiprocessing apps in Perl, even though it doesn't do a few of the things on your list.

From the synopsis:

use Parallel::ForkManager;
 
$pm = Parallel::ForkManager->new($MAX_PROCESSES);
 
foreach $data (@all_data) {
  # Forks and returns the pid for the child:
  my $pid = $pm->start and next;
 
  ... do some work with $data in the child process ...
 
  $pm->finish; # Terminates the child process
}
[download]

I'm not sure how easy it will be to do an Apache-style graceful restart (your #3), as I haven't used P:FM in a while.

As for #4, that would be trivial to implement in the child itself. $pm->finish if ++$my_requests > $conf->{max_child_requests};

It doesn't give you any kind of PID file or command line help (Daemon::Control is nice for that, but it isn't really intended for multiprocessing), which is way harder to get right than a PID file.

I hope this helps. Without knowing more about your application, this advice is generic. Specific requirements might pull you in a different direction.

use strict; use warnings; omitted for brevity.

In reply to Re: Looking for a daemonizing module by rjt
in thread Looking for a daemonizing module by Dallaylaen

Are you posting in the right place? Check out Where do I post X? to know for sure.
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
Want more info? How to link or How to display code and escape characters are good places to start.


XP is just a number
	PerlMonks