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[GEMPAK #DPN-938735]: no data written by dc* progs

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  • Subject: [GEMPAK #DPN-938735]: no data written by dc* progs
  • Date: Mon, 08 Mar 2010 17:13:07 -0700
Hi Eric,

I am jumping in here since it was I who first fielded questions related
to GEMPAK decoders not writing their output files.  I helped two different
users who were running RedHat Enterprise Linux with this problem, and both
problems disappeared as soon as IPv6 support was turned off.  Your
experience may differ given that you are running under Debian, and the
others were running under RedHat Enterprise.

To reinforce what Michael mentioned in his original reply to you, we don't
know exactly how or why disabling IPv6 support should enable writing of the
GEMPAK decoder output!
 
re:
> Can you provide additional details of the ipv6 tweak that is mentioned?

The following web page may be of some help, or, at least, be provocative:

How To Disable IPv6 on Fedora / Linux & Why
http://blog.taragana.com/index.php/archive/how-to-disable-ipv6-on-fedora-linux-why/

re:
> I've tossed some of the logs online at
> http://www.rap.ucar.edu/staff/enelson/gempak_logs/ if you wanted to take a
> look.

I just took a quick look at your log files.  The messages being written to
the log were much the same if not identical to what the other users I alluded
to above were seeing.  I have a feeling that the last line in the following
snippit is trying to tell us why the problem is happening:

[23808] 100210/1511[DCMETR 7]  DCMETR version:  3.3
[23808] 100210/1511[DC 2]  read 96/102399 bytes strt 0 newstrt 96
[23808] 100210/1511[FL -3]  Cannot create file 
/d2/ldmData/gempak/surface/20100210_sao.gem.
[23808] 100210/1511[DM -1]  File /d2/ldmData/gempak/surface/20100210_sao.gem 
cannot be created.
[23808] 100210/1511[SF -1]  File /d2/ldmData/gempak/surface/20100210_sao.gem 
could not be created.
[23808] 100210/1511[SF -1]  File /d2/ldmData/gempak/surface/20100210_sao.gem 
could not be created.
[23808] 100210/1511[RA -4]  The time - 100210/2100 - cannot be set.


Cheers,

Tom
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Ticket Details
===================
Ticket ID: DPN-938735
Department: Support GEMPAK
Priority: Normal
Status: Open