Re: [HTCondor-users] regexp in if clauses and Group* information availability

[Thomas Hartmann <thomas.hartmann@xxxxxxx>]

Hi John,

many thanks for the detailed explanation - I am going for the EVALMACRO :)

Cheers and thanks,
  Thomas


On 21/03/2022 19.25, John M Knoeller wrote:
> the conditional of a transform if can only be a simple literal value, version test or defined test.  it cannot be an expression.
> 
> This is ok
> 
>    if defined my.boolad
> 
> And if boolad is true, false, 0 or 1  then this is ok
> 
>    if $(MY.boolad)
> 
> but if boolad is an expression, you need to force that to evaluate into temp variable before you can use it in an if statement
> 
>     EVALMACRO boolad_is_true my.boolad
>     if $(boolad_is_true)
> 
> In some cases you can use $INT() to force evaluation at the time of $() expansion like this.
> 
>     if $INT(MY.boolad)
> 
> This is the same for configuration files - the condition of an if in a config file can only be a simple boolean value, not an expression.
> 
> 
> 
> 
> 
> -----Original Message-----
> From: HTCondor-users <htcondor-users-bounces@xxxxxxxxxxx> On Behalf Of Thomas Hartmann
> Sent: Friday, March 18, 2022 8:43 AM
> To: HTCondor-Users Mail List <htcondor-users@xxxxxxxxxxx>
> Subject: [HTCondor-users] regexp in if clauses and Group* information availability
> 
> Hi all,
> 
> I am currently refactoring our grid cluster's accounting & GROUP_SORT
> code and just stumbled over two things.
> 
> Apparently, a regexp() expression cannot be used in a transform's
> if-clause directly, or? I tried to use the function like in [1] but run
> into an error
> 
>  > (1370.0) job_transforms: ERROR applying transform DESYAccounting
> (err=-3,rval=-1,msg=regexp("\/cms\/Role=lcgadmin",x509UserProxyFQAN ? :
> "") is not a valid if condition)
> 
> I guess that the expression would have to be stored first in an ad, or?
> (btw: how can I actually use a boolean as a case condition? `if boolad`
> or `if eval(boolad)` seem not to work)
> 
> The other thing is, that I tried to prepare the GROUP_SORT ranking
> already in the job transformation, but the evaluation of the Group*
> details returns an error.
> The current usage ads like `GroupResourcesInUse` or `GroupQuota` make
> probably no sense in a transformation, as they exists only during the
> matching cycle, or?
> 
> Cheers,
>   Thomas
> 
> 
> [1]
> 
> JOB_TRANSFORM_AcctTuning @=end
> 
> ...
> 
> if regexp("\/cms\/Role=lcgadmin",x509UserProxyFQAN ? : "")
>   SET DESYAcctGroup = "group_OPS"
>   SET GROUP_SORT_EXPR = 0.001
>   SET GROUPFOO = eval(GroupResourcesInUse/GroupQuota + 3.0)
> 
> ...
> 
> @end
> 
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