RE: RE: [cobalt-users] Planned execution of a script on a RAQ - AT not there ?

["Phil Beynon" <phil@xxxxxxxxxxxxxxxxxxxxxxxxx>]

> >Subject: RE: [cobalt-users] Planned execution of a script on a
> RAQ - AT not
> >         there ?
> >From: Francisco Javier Fabra Caro <jfabra@xxxxxxxxx>
> >To: cobalt-users@xxxxxxxxxxxxxxx
> >Date: Mon, 10 May 2004 11:36:46 +0200
> >
> >
> > > How about a PHP script run from CRON, checks the time, if
> it's nearly the
> > > trigger time then it does a sleep until its exactly the right
> time then
> > > sends the emails using some sort of remailer, otherwise it exits.
> > > Should be accurate to a few milliseconds!
> > >
> > > Phil
> > >
> >
> >Yeah!
> >
> >Or just try to make something like this idea, and when it's nearly the
> >exact time give the proccess a higher priority. With this you should
> >avoid situation like the case of have a high CPU use and your triggered
> >program trying to hardly execute something.
>
> Both suggestions look like a great theory but I cannot find a "down to
> earth" example in any of the forums I know.
> I do have a Perl script ready for the action, but am not sure how to make
> sure the server time is accurate, and especially give a job the highest
> priority ?

Just how accurate does the sending time actually need to be - with emails
there is always going to be some lag in sending and receiving - for instance
on this list when I make a post then it will take sometimes a few seconds
and sometimes a few minutes before I see it come back. Also how frequently
does the recipient check their email for this incoming one - one minute - 5
mins 10 mins etc.
By naming the script correctly you can make it start as the first thing in
the cron, then anything else which is off and busy  should happen
afterwards.
Where are the emails you are sending coming from, are they short, long,
always the same etc? Are they database data, already in the sendmail queue,
exist as a text file?

I never said you would be able to get a script off a forum, but it shouldn't
be hard to write!

Phil


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