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SUMMARY: Recent Pluto hiccups (fwd)

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  • Subject: SUMMARY: Recent Pluto hiccups (fwd)
  • Date: Thu, 13 Jul 2000 09:01:06 -0600 (MDT)

===============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
address@hidden             WWW: http://www.unidata.ucar.edu/
===============================================================================

---------- Forwarded message ----------
Date: Wed, 12 Jul 2000 18:28:05 -0400 (EDT)
From: C. Vandersip <address@hidden>
To: address@hidden
Subject: SUMMARY: Recent Pluto hiccups 

What a great group! Thanks to Russ Rew@Unidata, Tom McDermott@SUNY Albany,
and Mark Lauferswieler@OU (by phone) for quick responses to my "dilemma".  
As a regex non-guru, I had miswritten the FILE line.  Solution below,
followed by original question:

SOLUTION:
----------------
>From Russ Rew -

"The arguments to the FILE action include "\3" referring to the third
flagged part of the pattern, but there are only 2 parts of the
pattern, ([0-3[0-9]) and ([0-2][0-9]).  I suspect what you really want
is:"

 WMO    ^ACPN50.* .... ([0-3][0-9])([0-2][0-9])
        FILE    data/weather/HURR/(\1:yyyy)(\1:mm)\1\2.HURR
----------------
>From Tom McDermott -

"The problem I see is that you have only 2 parenthesized expressions in
your pattern but you are referencing a 3rd [ \3 ], which doesn't exist.  
Hence pqact chokes. Just curious, did you use the 'ldmadmin pqactcheck'
command before HUPing pqact?  I use it every time I make a change in
'pqact.conf' Unfortunately, it doesn't save you from making mistakes in
'ldmd.conf'."  
---------------
COMMENT:  I did do a pqactcheck, but apparently it checks only for
incorrect syntax, not for mis-referencing, because it came back
'syntatically correct'.

ORIGINAL PROBLEM:
My apologies to downstream sites for recent Pluto LDM outages.  Last
Friday, at the behest of an email request, I inserted some entries into
pqact.conf so as to retrieve the Central Pacific Tropical Outlook (ACPN50
PHFO).  While my syntax appears to be just fine, debug logging of pqact
showed that pqact was choking on the product and crashing.  Since the
product comes in twice daily at 04 and 16UTC, this is when LDM was going
down.  I have commented out these lines and LDM is working fine now.  I
have included the lines below so if anyone sees a problem with the way
it's written, please let me know.  I'm just curious why this product would
kill pqact and I suspect it's how I wrote the entry.

Regards,

Chris

   766  #WMO    ^ACPN50.* .... ([0-3][0-9])([0-2][0-9])
   767  #       FILE    data/weather/HURR/(\2:yyyy)(\2:mm)\2\3.HURR



         ###############################################################
         #                      Chris Vandersip                        #
         #        Computer Research Specialist/Dept. Sysadmin          #
         #  Rm. 024, Dept. of Meteorology, Florida State University    #
         #          address@hidden   (850)644-2522                     #
         ###############################################################