Forum: CFEngine Help
Subject: Re: CFEngine Help: Re: Variable convergence mystery
Author: neilhwatson
Link to topic: https://cfengine.com/forum/read.php?3,26796,26824#msg-26824
Mark Burgess Wrote:
---
> The algorithm is simple: every attempt
Knowing the algorithm is not going to help anyone to understand it as
there are too many "variable issues".
The algorithm is simple: every attempt is made to converge variables
based on knowledge of defined classes,
whenever they are encountered in a scheduled promise, going around up to
three
Hi Neil,
> I've learned something new today. Now I had a question. If agent re-evaluates
> vars and classes more than in the normal ordering of other promise types then
> what is the algorithm? How can we mortals similate in our minds what the
> agent will do?
I honestly don't know the details
Forum: CFEngine Help
Subject: Re: Variable convergence mystery
Author: neilhwatson
Link to topic: https://cfengine.com/forum/read.php?3,26796,26819#msg-26819
Thanks Diego,
I've learned something new today. Now I had a question. If agent re-evaluates
vars and classes more than in the n
Forum: CFEngine Help
Subject: Re: Variable convergence mystery
Author: zzamboni
Link to topic: https://cfengine.com/forum/read.php?3,26796,26818#msg-26818
Nick,
This is because promises within a section are evaluted in the order in which
they appear. So when the "debug" class is s
On 07/31/2012 12:14 PM, Diego Zamboni wrote:
> Nick,
>
> There is a bit of magic to properly resolve class-variable dependencies.
> This is mentioned in the reference guide:
> https://cfengine.com/manuals/cf3-Reference#Agent-normal-ordering
>
> CFEngine tries to keep variable and class promises
Forum: CFEngine Help
Subject: Re: Variable convergence mystery
Author: neilhwatson
Link to topic: https://cfengine.com/forum/read.php?3,26796,26815#msg-26815
That's a bit too black box/magic for me to be comfortable with. If the verbose
output showed the classes and vars promises being eval
Nick,
There is a bit of magic to properly resolve class-variable dependencies. This
is mentioned in the reference guide:
https://cfengine.com/manuals/cf3-Reference#Agent-normal-ordering
CFEngine tries to keep variable and class promises before starting to consider
any other kind of promise. In
On 07/31/2012 10:18 AM, Tokarski Boleslaw wrote:
> Normal ordering specifies that vars are run before classes. So before
> anything else happens below this, debug is not declared, so "filename"
> is set to "/tmp/nodebug".
>
> Then, the class debug is declared, on the second CFEngine iteration this
Hello,
Funny thing, as I bumped into that today, using 3.1.4. With my own
policy, but here are my discoveries.
> bundle agent test(param){
> vars:
> debug::
> "filename" string => "/tmp/debug";
>
> !debug::
> "filename" string => "/tmp/nodebug";
>
> classes:
> "debug" expr
Forum: CFEngine Help
Subject: Re: Variable convergence mystery
Author: nickanderson
Link to topic: https://cfengine.com/forum/read.php?3,26796,26809#msg-26809
neilhwatson Wrote:
---
> An exception to normal ordering? That sir, is
> bla
Forum: CFEngine Help
Subject: Re: Variable convergence mystery
Author: neilhwatson
Link to topic: https://cfengine.com/forum/read.php?3,26796,26808#msg-26808
Nick Anderson Wrote:
---
> I guess that's where the order kicks in. So if yo
On 07/31/2012 09:32 AM, Ted Zlatanov wrote:
> Thinking about it, I think the key is that !debug requires knowledge of
> the debug context, so it needs the context expression to converge. At
> least that was my instinctive thinking when I wrote the above. But I
> don't know the specific algorithm
On Tue, 31 Jul 2012 08:59:08 -0500 Nick Anderson wrote:
NA> The file making the promise $(filename) gets set to different values
NA> based on a class. I thought due to normal ordering, on the first pass
NA> filename should get set to "/tmp/nodebug" since the debug class has not
NA> been raise
Forum: CFEngine Help
Subject: Re: Variable convergence mystery
Author: nickanderson
Link to topic: https://cfengine.com/forum/read.php?3,26796,26804#msg-26804
Ok this is interesting.
If I change the vars order and have no class set on filename, or if I have
specified the any class
vars
Forum: CFEngine Help
Subject: Re: Variable convergence mystery
Author: nickanderson
Link to topic: https://cfengine.com/forum/read.php?3,26796,26800#msg-26800
Yeah I know about suppressing the warnings with policy free. This was just
unexpected behavior. I can't tell if its intended or
Forum: CFEngine Help
Subject: Re: Variable convergence mystery
Author: neilhwatson
Link to topic: https://cfengine.com/forum/read.php?3,26796,26798#msg-26798
Setting a policy of free would remove the duplicate warnings. Still, I would
expect /tmp/nodebug to be created during the first pass
I saw something I didn't expect last night. Ted cleaned up a sketch for
managing /etc/security/limits.conf that worked like this example.
The file making the promise $(filename) gets set to different values
based on a class. I thought due to normal ordering, on the first pass
filename should ge
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