ikegami - Thanks. The following code works.

for my $host (@hosts) {
    $pm->start($host) and next;   
    exec(@some_command);
    print(STDERR "exec failed: $!\n");
    _exit($!);
}

[download]

The database connection is now persistent in run_on_finish(), and I am able to insert the return code into the db from the callback routine.

Thinking of the Chinese proverb.. give a man a fish.. teach a man to fish.. Rather than me just blindly accepting the code improvement, can you explain how run_on_finish() gets the return code without having $return_code passed in as either $pm->finish($return_code) or _exit($return_code) ?

Also, why is 'exec' preferred over 'system + _exit' ? I thought exec executes a system command and never returns.. I am surprised that this works actually.

In reply to Re^4: Parallel::ForkManager run_on_finish exit code handler by sojourn548
in thread Parallel::ForkManager run_on_finish exit code handler by sojourn548

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