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Re: Proc-ProcessTable alternative

by pokki (Monk)
on Oct 13, 2012 at 23:45 UTC ( #998886=note: print w/replies, xml ) Need Help??


in reply to Proc-ProcessTable alternative

Uh.

You're forking with fork(), I assume? So you're probably using the standard forking idiom

if (my $pid = fork()) { # do stuff in the parent } else { # do stuff in the child }

or a variant thereof.

The return value of fork() is, according to the perldoc, undef if the fork failed, 0 if the fork succeeded and you're in the child process, or the child's PID if the fork succeeded and you're in the parent process. So the parent process gets the forked process' PID as fork()'s return value. You can collect these every time you fork and manage your child processes however you want.

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[Corion]: marto: Clever! ;)
[Corion]: You can only reach me by pager
[Corion]: Maybe the solution would be to launch a cron job every minute that takes two measurements a minute apart and sends a mail if the usage is below on the first and above threshold on the last measurement
[marto]: that's essentially it :)
[marto]: I think the long term solution would be to have sysadmins that do their job, so I don't have to do everything :P
[marto]: they already have an entire BMC patrol system, which they disabled, because it was sending out spurious messages. So rather than fix the issue, or even find out what it was, they turned it off. No messages, can't be any problems, right?
[Corion]: marto: But having open tickets / incidents increases the pressure on them ;) Of course, likely your contract / SLA specifies an upper limit for the number of incidents :-D
[Corion]: marto: Ow ...
[marto]: Corion They don't get into trouble for the number of tickets, or even breached tickets they have
[marto]: which is a core issue with the client

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