19990208: sflist core dump

Maureen,

you can change permissions on the file....or if you want to
try it on a backup copy of the file first, just incase of
something horrible happening- copy the file
to one that you own, then try sfdelt.

Steve


>From: Maureen Ballard <address@hidden>
>Organization: UK Ag Weather Center
>Keywords: 199902101933.MAA27141

>Steve,
>
>I just tried sfdelt to delete a couple times from the file today but it doesn'
> t
>appear to have worked. When I ran the program the output was:
>
>[FL 13]
>
>The only thing I can figure is that the user doesn't have permission to alter 
> the
>file. Would this be a correct assesment? Should I change the permission on the
>surface file and then run the program?
>
>Thanks!
>Maureen
>
>Unidata Support wrote:
>
>> Maureen,
>>
>> I have been looking at your data file, as well as all of the data
>> being decoded for the past three days. With your data file, I
>> can produce the core dump, though I can't make reproduce
>> a file here with the past 3 days data to cause a core dump.
>>
>> The problem with your file is a corrupt record, that behaves
>> as if the writing to the file was interrupted.
>>
>> Would it be possible that the disk partition you are decoding
>> the data to could have filed up for some period? Log messages
>> about disk full would likely be in your /var/adm/messages
>> file on the system that is doing the decoding. Since the same
>> thing has happened for 3 days in a row, it could be that recently
>> a disk space problem has arisen.
>>
>> One other thing would be the possibility of a second dchrly decoder
>> running which would create conflicting writes to the file. This
>> should not happen if there is only one dchrly entry in your pqact.conf
>> file, and it is properly using the file naming templates. If
>> you have any doubts, send me your pqact.conf file and I'll look.
>>
>> If dchrly has crashed at all by the ldm during this time, it would
>> be good to know that- I haven't seen any crashes here.
>>
>> I ran sfdelt with dattim=/0200 and area=dset and was able to remove
>> all the 2Z observations but found another corrupt record at 5Z.
>> After clearing that, I was able to list the rest of the contents of the
>> file.
>>
>> Steve Chiswell
>>
>> >From: Maureen Ballard <address@hidden>
>> >Organization: UK Ag Weather Center
>> >Keywords: 199902081828.LAA17365
>>
>> >Steve,
>> >
>> >The file is there as 990208_sao_2.gem
>> >
>> >In case you are wondering, I wasn't paying attention at first and started t
> o s
>> > end
>> >the file as an ASCII file - that's the file called 990208_sao.gem
>> >
>> >Thanks!
>> >Maureen
>> >
>> >Unidata Support wrote:
>> >
>> >> >From: Maureen Ballard <address@hidden>
>> >> >Organization: UK Ag Weather Center
>> >> >Keywords: 199902081729.KAA15779
>> >>
>> >> >Steve,
>> >> >
>> >> >Our meteograms stopped running last night and while I was diagnosing the
>> >> >problem this morning, I kept getting core dumps. What I do is list the
>> >> >data from yesterday and today using sflist and place the output into a
>> >> >file. Then I combine the file and create a gempak management file from
>> >> >that. That way, every time the program runs, a 24 hour meteogram is
>> >> >created.
>> >> >
>> >> >The core dump occurs while I do an sflist on today's data. Since it is
>> >> >today's data, it would likely occur even if I wasn't running the sflist
>> >> >program. When I list data from /0200, the data core dumps. I am guessing
>> >> >that there is some "garbage" in the data file sometime between 0200 and
>> >> >0300 (i can list 0300 fine).
>> >> >
>> >> >I tried using sfdelt to delete all of 0200 from the file (so at least
>> >> >the program could get through everything without core dumping) but that
>> >> >doesn't seem to help. There are still some 0200 times in the file. Any
>> >> >ideas? Even better would be ideas as to why this happened and how it can
>> >> >be prevented.
>> >> >
>> >> >Thanks
>> >> >
>> >> >Maureen
>> >> >
>> >> >--
>> >> >========================================================================
>> >> >
>> >> >Maureen Moore Ballard                   address@hidden
>> >> >Staff Meteorologist                           ph:  606-257-3000ext244
>> >> >Ag. Weather Center                         fax: 606-257-5671
>> >> >243 Ag. Engineering Bldg
>> >> >Dept. of Biosystems and Ag. Engr.
>> >> >University of Kentucky
>> >> >Lexington, KY 40546-0276
>> >> >HOMEPAGE   http://wwwagwx.ca.uky.edu
>> >> >
>> >> >You don't stop laughing because you grow old;
>> >> >you grow old because you stop laughing.
>> >> >========================================================================
> =
>> >> >
>> >> >
>> >> >
>> >>
>> >> Maureen,
>> >>
>> >> I don't have any core dumps with today's surface file. Can you ftp me you
> r
>> >> file so I can see if I can track the problem down? Stick it in
>> >> ~gbuddy/incoming.
>> >>
>> >> Steve Chiswell
>> >> *************************************************************************
> ***
>> >> Unidata User Support                                    UCAR Unidata Prog
> ram
>> >> (303)497-8644                                                  P.O. Box 3
> 000
>> >> address@hidden                                   Boulder, CO 80
> 307
>> >> -------------------------------------------------------------------------
> ---
>> >> Unidata WWW Service                        http://www.unidata.ucar.edu/
>> >> *************************************************************************
> ***
>> >
>> >
>> >
>> >--
>> >========================================================================
>> >Maureen Moore Ballard                   address@hidden
>> >Staff Meteorologist                           ph:  606-257-3000ext244
>> >Ag. Weather Center                         fax: 606-257-5671
>> >243 Ag. Engineering Bldg
>> >Dept. of Biosystems and Ag. Engr.
>> >University of Kentucky
>> >Lexington, KY 40546-0276
>> >HOMEPAGE   http://wwwagwx.ca.uky.edu
>> >
>> >You don't stop laughing because you grow old;
>> >you grow old because you stop laughing.
>> >=========================================================================
>> >
>> >
>> >From address@hidden  Tue Feb  9 07:30:00 1999
>> >Received: from smtp.uky.edu (smtp.uky.edu [128.163.2.17])
>> >       by unidata.ucar.edu (8.8.8/8.8.8) with ESMTP id HAA14608
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>> >Keywords: 199902091429.HAA14608
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>> >Message-ID: <address@hidden>
>> >Date: Tue, 09 Feb 1999 09:29:56 -0500
>> >From: Maureen Ballard <address@hidden>
>> >Organization: UK Ag Weather Center
>> >X-Mailer: Mozilla 4.05 [en] (WinNT; I)
>> >MIME-Version: 1.0
>> >To: Unidata Support <address@hidden>
>> >Subject: core dumps again with sflist
>> >Content-Type: text/plain; charset=us-ascii
> >Content-Transfer-Encoding: 7bit
>> >
>> >Steve,
>> >
>> >Wanted to let you know that we are having a similar problem again today.
>> >Right now we get a core dump sometime in the /0000 Z hour. Let me know
>> >if you want a copy of the surface file. This is really strange to happen
>> >2 days in a row.
>> >
>> >Thanks for the help
>> >
>> >Maureen
>> >
>> >--
>> >========================================================================
>> >
>> >Maureen Moore Ballard                   address@hidden
>> >Staff Meteorologist                           ph:  606-257-3000ext244
>> >Ag. Weather Center                         fax: 606-257-5671
>> >243 Ag. Engineering Bldg
>> >Dept. of Biosystems and Ag. Engr.
>> >University of Kentucky
>> >Lexington, KY 40546-0276
>> >HOMEPAGE   http://wwwagwx.ca.uky.edu
>> >
>> >You don't stop laughing because you grow old;
>> >you grow old because you stop laughing.
>> >=========================================================================
>> >
>> >
>> >
>> >From address@hidden  Tue Feb  9 11:15:19 1999
>> >Received: from smtp.uky.edu (smtp.uky.edu [128.163.2.17])
>> >       by unidata.ucar.edu (8.8.8/8.8.8) with ESMTP id LAA21792
>> >       for <address@hidden>; Tue, 9 Feb 1999 11:15:18 -0700 (MST)
>> >Keywords: 199902091815.LAA21792
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>> >Message-ID: <address@hidden>
>> >Date: Tue, 09 Feb 1999 13:15:09 -0500
>> >From: Maureen Ballard <address@hidden>
>> >Organization: UK Ag Weather Center
>> >X-Mailer: Mozilla 4.05 [en] (WinNT; I)
>> >MIME-Version: 1.0
>> >To: Unidata Support <address@hidden>
>> >Subject: problems continue...
>> >Content-Type: text/plain; charset=us-ascii
>> >Content-Transfer-Encoding: 7bit
>> >
>> >Steve,
>> >
>> >In case this helps with the diagnosing of this problem....
>> >
>> >Yesterday, sflist was the program that was bombing out - it would get
>> >hung and when I would do a ps on the process, teh computer time would
>> >keep increasing. I would eventually kill the process since it wasn't
>> >killing itself. Today it seems that whatever teh problem, it is
>> >effecting oabsfc. This is preventing many of our maps from finishing. I
>> >hope this hlep somehow. Again, if you would like the surface file for
>> >today, let me know and i will ftp it over.
>> >
>> >Thanks
>> >
>> >Maureen
>> >
>> >--
>> >========================================================================
>> >
>> >Maureen Moore Ballard                   address@hidden
>> >Staff Meteorologist                           ph:  606-257-3000ext244
>> >Ag. Weather Center                         fax: 606-257-5671
>> >243 Ag. Engineering Bldg
>> >Dept. of Biosystems and Ag. Engr.
>> >University of Kentucky
>> >Lexington, KY 40546-0276
>> >HOMEPAGE   http://wwwagwx.ca.uky.edu
>> >
>> >You don't stop laughing because you grow old;
>> >you grow old because you stop laughing.
>> >=========================================================================
>> >
>> >
>> >
>>
>> ****************************************************************************
>> Unidata User Support                                    UCAR Unidata Program
>> (303)497-8644                                                  P.O. Box 3000
>> address@hidden                                   Boulder, CO 80307
>> ----------------------------------------------------------------------------
>> Unidata WWW Service                        http://www.unidata.ucar.edu/     
>> ****************************************************************************
>
>
>
>--
>========================================================================
>Maureen Moore Ballard                   address@hidden
>Staff Meteorologist                           ph:  606-257-3000ext244
>Ag. Weather Center                         fax: 606-257-5671
>243 Ag. Engineering Bldg
>Dept. of Biosystems and Ag. Engr.
>University of Kentucky
>Lexington, KY 40546-0276
>HOMEPAGE   http://wwwagwx.ca.uky.edu
>
>You don't stop laughing because you grow old;
>you grow old because you stop laughing.
>=========================================================================
>
>