Re: SplayTime

[Bas van der Vlies]

That is exactly what i want to spread the load on the fileserver. I know
it is one run, but i do not want a bunch of hosts check at the same if 
they have the right config for the next run (update.conf). CFengine runs
every 15 minutes and only at midnight is does a daily check. This checks
a lot of files on the fileserver. So that is why i want for normal runs
only to set the SplayTime in update.conf and for the long daily run add
another splaytime, but maybe i have to implemented another solution.

Chip Seraphine wrote:

> I think the idea of SplayTime is to decrease the load on the fileserver, 
> really.  It's not a matter of the size of the script so much as a matter 
> of how much server I/O it may generate as it requests files to be copied 
> or whatever.
>
> But the main reason you probably don't really want to do this is that 
> the update.conf runs immediately before the cfagent.conf; putting a 
> SplayTime in there will have the effect of putting a pause in between 
> the two.  You probably ought to think of the two files as being a single 
> large job, and set the splay time appropriately.  In other words, if you 
> want to spread the updates over a couple minutes and the main config 
> over a couple more, just set the whole splay to four minutes.
>
> Hope that makes sense,
>
> Bas van der Vlies wrote:
>
> > cfengine 2.0.7p3
> >
> > I have a question about this variable. I want it to use twice one for
> > the update.conf and then in cfagent.conf (daily run). But that is not
> > possible, why? My thought is that i want to spread the load on the
> > server when update.conf is run. It is a sinple cfengine script and it 
> > runs fast, so a low SplayTime value. Now when i run the daily config a
> > lot of files are checked so i want to use a different SplayTime value.
> > Does this make sense?


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*  Bas van der Vlies                     e-mail: basv@sara.nl      *
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