Re: FSL2 feed?

• To: Steve Emmerson <steve@xxxxxxxxxxxxxxxx>
• Subject: Re: FSL2 feed?
• From: Anne Wilson <anne@xxxxxxxxxxxxxxxx>
• Date: Thu, 25 Sep 2003 10:11:26 -0600

All,

My sincere apologies for propagating misinformation.  Next time I'll lay off 
responding past a certain hour in the evening.

Anne

> 
> >Date: Wed, 24 Sep 2003 20:48:03 -0600
> >From: anne <anne@xxxxxxxxxxxxxxxx>
> >Organization: UCAR/Unidata
> >To: Robert Mullenax <rrm@xxxxxxxxxxxxxxxxxxxx>
> >Subject: Re: FSL2 feed?
> 
> The above message contained the following:
> 
> > ...  However, there's another issue wrt ".*" -
> > contrary to what one might think, it has been found to be extremely
> > inefficient and costly.   So, from that perspective, I would advise
> > using the expression above instead.
> 
> Just to clarify Anne's message, the regular-expression ".*", BY ITSELF,
> is quite efficient.  So a request-line like
> 
>     request FSL2 .* host.domain
> 
> is quite all right.  The problem occurs when ".*" is used as a PREFIX to
> a more complex regular-expression.  So a request-line like
> 
>     request FSL2  ".*FSL\.NetCDF\.NOAAnet\.windprofiler\." host.domain
> 
> is SEVERAL HUNDRED TIMES LESS EFFICIENT than the request-line
> 
>     request FSL2  "^FSL\.NetCDF\.NOAAnet\.windprofiler\." host.domain
> 
> Robert, just a thought, do you need to adjust the regular-expressions in
> your pqact(1) configuration-file?
> 
> Regards,
> Steve Emmerson

-- 
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Anne Wilson                     UCAR Unidata Program            
anne@xxxxxxxxxxxxxxxx                  P.O. Box 3000
                                  Boulder, CO  80307
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    • From: Steve Emmerson