Hi,
we use netsint now, but before that we had a massive PERL driven forked system.
The basic flow of the program was:
read in data from mySQL table into an array
foreach $test (@tests) {
if ($pid = fork) {
# this is the parent process
# we just wait for the loop to repeat
} elsif elsif (defined $pid) {
# child process
runcommand($test);
exit;
# don't forget the exit, or you will loop yourself out of CPU
} else {
# fork failed. It will probably be ok, but think before
you use a GOTO the top of the fork tree
}
}
R
At 09:43 19/09/2002 -0400, Jason Frisvold wrote:
>Greetings,
>
> I'm in the process of writing a large network monitoring system in
>perl. I want to be sure I'm headed in the right direction, however.
>
> I have a large MySQL database comprised of all the items that need
>monitoring. Each individual row contains exactly one monitoring type
>(although, i would love to be able to combine this efficiently)
>
> One of the tables will contain the individual monitoring types
> and the
>name of the program that processes them. I'd like to have a centralized
>system that deals with spawning off these processes and monitoring those
>to ensure they are running correctly. I'm looking to spawn each process
>with the information it needs to process instead of it having to contact
>the database and retrieve it on it's own. This is where I'm stuck. The
>data it needs to process can be fairly large and I'd rather not drop
>back to creating an external text file with all the data. Is there a
>way to push a block of memory from one process to another? Or some
>other efficient way to give the new process the data it needs? Part of
>the main program will be a throttling system that breaks the data down
>into bite size chunks based on processor usage, running time, and memory
>usage. So, in order to properly throttle the processes, I need to be
>able to pass some command line parameters in addition to the data
>chunk...
>
> Has anyone attempted anything like this? Do I have a snowball's
>chance? :)
>
>--
>---------------------------
>Jason 'XenoPhage' Frisvold
>Senior ATM Engineer
>Penteledata Engineering
>[EMAIL PROTECTED]
>RedHat Certified - RHCE # 807302349405893
>---------------------------
>"Something mysterious is formed, born in the silent void. Waiting alone
>and unmoving, it is at once still and yet in constant motion. It is the
>source of all programs. I do not know its name, so I will call it the
>Tao of Programming."
>
>
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