Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl: the Markov chain saw

Re: I am having a fork problem

by Zaxo (Archbishop)
on Jun 13, 2002 at 05:40 UTC ( #174102=note: print w/replies, xml ) Need Help??

in reply to I am having a fork problem

You don't know whether the child or the parent will run first after a fork. You test code could print

This is the original process the pid = 5292
This is the return to the parent process
        This is the child process.. parentpid = 5292
        This is the child process its pid = 5293
next time.

If the issue is unexpected death of the parent, it would be good to show the parent's code. You may be running off the end of the file to end naturally.

In any case, the child appears to loop, running once every hour and a half or more for as long as the parent is running. That loop might be more clearly written as:

while (kill 0, $parentpid or exit 0) { # ... }
instead of parsing ps output and applying a double negative condition to exit.

I have no idea whether your main processing is appropriate or not, since you don't say what is run by $BPDBJOBS or what data it gives back. The match and assignment to $1 sequences look a little awkward, but may be all right.

Your trial code is apt to be littering the machine with zombies, might want to check that

After Compline,

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://174102]
[shmem]: Discipulus: readdir has the same semantics as readline (a.k.a <>). Have another coffee ☕ ;-)
[Discipulus]: ah! just with my old system perl (5.8.8) was needed
[Corion]: Has anybody toyed around with Mastodon? There is a Perl module for it, but I'm not sure that it's a yak worth chasing
[Corion]: On the upside, maybe running that for my family would be interesting, or at least for myself
[Corion]: I'm not fond of using a server hosted by other people, even if they claim to be GNU ;)
[Discipulus]: gee a social network with the family.. is this a dread? ;=)

How do I use this? | Other CB clients
Other Users?
Others drinking their drinks and smoking their pipes about the Monastery: (6)
As of 2017-05-26 07:35 GMT
Find Nodes?
    Voting Booth?