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20000918: Sequence number use in pqact.conf??

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  • Subject: 20000918: Sequence number use in pqact.conf??
  • Date: Mon, 18 Sep 2000 11:23:37 -0600

Mike,

This is apparently a conflict with the User Guide which I have.

I found that I have to specify:
        FILE<tab>-close<tab>-overwrite

Even though the User Guide I have (which is slightly old) specified
that the options were mutually exclusive.

The -close option is needed to close the file handle, so that only
the 1 product is sent out at a time. 

Steve Chiswell
Unidata User SUpport


On Mon, 18 Sep 2000, Robb Kambic wrote:

> On Sun, 17 Sep 2000, Michael W Dross wrote:
> 
> > 
> > 
> > I have searched and could not find the answer... So I turn to you guys  :-)
> > 
> > Is there a way in defining a pqact.conf entry that will use the sequence
> > number?? I have tried with no luck. Consider the following example.
> > 
> > 
> > DDPLUS  ^WHXX04 (....) ([0-3][0-9])([0-2][0-9])([0-5][0-9])
> >         FILE    -overwrite 
> > data/tropical/GFDL_Hurricane_Guidance.(\2:mm)\2\3\4
> > 
> Mike,
> 
> I looked at the pqact code about the feedtype and pattern matches, here's
> a comment that states the sequence number is NOT included in the match.
> 
> * If the feedtype matches AND ((the product ID matches the
> * regular expression) OR (the pattern is "_ELSE_" AND nothing
> * has been done to this product yet AND the first char of
> * the ident isn't '_'))
> 
> This is a problem because products coming from different NOAAport ingest
> systems will look differnt because of the different sequence number.  In
> the ldm-5.1.2 release we added a -5 flag to pqing to NOT include the
> sequence number in the md5 checksum.  Therefore, the checksum will just be
> on the data section of the product and it can designate these type of
> products as duplicates.  At this time, we have not implemented this
> because it needs some synchronization between all the NOAAport ingest
> source site.  I suspect it will happen in the next couple of months.
> 
> Robb...
> 
> 
> 
> > 
> > Occasionally multiple bulletins with the same time/date heading are sent 
> > and it
> > gets appended to the file (-overwrite doesn't prevent it
> > for some reason) the only difference is the sequence number. I thought this
> > might work, but doesn't.
> > 
> > DDPLUS  ^(...)  WHXX04 (....) ([0-3][0-9])([0-2][0-9])([0-5][0-9])
> >         FILE    -overwrite 
> > data/tropical/GFDL_Hurricane_Guidance.\1(\3:mm)\3\4\5
> > 
> > 
> > It seems the entry starts with WHXX04 and the sequence number cannot be
> > referenced??
> > 
> > Any ideas/suggestions would be greatly appreciated!
> > 
> > Mike Dross
> > 
> > 
> 
> ===============================================================================
> Robb Kambic                              Unidata Program Center
> Software Engineer III                    Univ. Corp for Atmospheric Research
> address@hidden                   WWW: http://www.unidata.ucar.edu/
> ===============================================================================
> 
>