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20021017: Setting up LDM for McIDAS-XCD (cont.)



>From: Richard Massa <address@hidden>
>Organization: UC Davis
>Keywords: 200210150109.g9F19F112387 McIDAS-XCD LDM

Richard,

>Lo and behold, I left last night and everything was fine.  However, something
>again appears to have broken in the night...
>
>So the symptom is nearly the same as before, however this time nothing appears
>under the Data Plot Day in the observations window at all, and when I got to 
>click on it, I another error message.

I see from your PTLIST output that there are no surface (SAO/METAR) data
files on atm20.  This indicates a problem either in your XCD decoding
or LDM reception of the data.

>A note, if I choose synoptic as output as opposed to SAO/METAR, it works fine.

This says that the synoptic XCD decoder, DMSYN, is running.

>So I figured I would do those same tests as you did and include them here...
>All complete fine (output identical to what you emailed yesterday) except the 
>last one...
>
>PTLIST RTPTSRC/SFCHOURLY FORM=FILE ALL                                 
>PTLIST: No MD files found                                              
>PTLIST: Done 
>
>in /a/data/xcd, which is where I'm keeping the files, I see this:
>
>address@hidden:/a/data/xcd# ls -la MD*
>-rw-r--r--    1 ldm      ldm       5545608 Oct 16 03:38 MDXX0018
>-rw-r--r--    1 ldm      ldm       5781328 Oct 16 13:47 MDXX0019
>-rw-r--r--    1 ldm      ldm        682960 Oct 15 21:58 MDXX0020

Three days worth of mandatory level upper air data, but today's data
is much less than yesterday's and the day before's.

>-rw-r--r--    1 ldm      ldm        784960 Oct 16 03:24 MDXX0028
>-rw-r--r--    1 ldm      ldm       1275344 Oct 16 13:47 MDXX0029
>-rw-r--r--    1 ldm      ldm         16640 Oct 15 21:57 MDXX0030

Three days worth of significant level upper air data, but today's
(the data in MDXX0030) data is next to nothing.

>-rw-r--r--    1 ldm      ldm       4987588 Oct 16 13:31 MDXX0038
>-rw-r--r--    1 ldm      ldm       4984780 Oct 16 13:48 MDXX0039
>-rw-r--r--    1 ldm      ldm       2215544 Oct 16 08:26 MDXX0049

Three days worth of ship/buoy data, but none for today.

>-rw-r--r--    1 ldm      ldm       4909200 Oct 16 05:08 MDXX0057
>-rw-r--r--    1 ldm      ldm       8858712 Oct 16 11:22 MDXX0058
>-rw-r--r--    1 ldm      ldm       7778136 Oct 16 13:48 MDXX0059

Three days worth of synoptic data, but none for today.

>-rw-r--r--    1 ldm      ldm       3112844 Oct 16 04:04 MDXX0068
>-rw-r--r--    1 ldm      ldm       5436048 Oct 16 13:47 MDXX0069

Two days worth of piret/airep data, but none for today.

>Don't know if that helps at all...

No, this tells us that certain things are not working.  Unfortunately,
it doesn't tell us _why_ they are working.

>Could you perhaps shed any light on why this might be occuring?

Not really.  I would need to see LDM log files to see if data is being
received; see if the XCD decoders are running (processes like dmsfc.k
dmsyn.k, dmraob.k, dmmisc.k, dmgrid.k); if errors are occurring during
the decodes; etc.  A login both as 'ldm' and 'mcidas' would help.

>I'm wanting to say that it could be caused by a professor who is running
>mcidas after I've left.

The user shouldn't be deleting data, so this _should not_ be the problem
(but you never know).

>I'm creating him a seperate account today, but is there anything else I
>should/can look for when things go wrong?

There are a lot of things to check:

o from the 'ldm' account, I would run 'ldmadmin watch' to see if your
  machine is receiving IDS|DDPLUS datastream products

o from the 'ldm' account verify that the McIDAS-XCD decoders are running
  (in addition to the decoders I listed above, look for the routines
  startxcd.k, ingebin.k, and ingetext.k).  If these are not running,
  try stopping and restarting the LDM:

ldmadmin stop
<wait for all LDM processes to exit>
ldmadmin start

o if the LDM _is_ running and you _are_ receiving data products, then the
  problem must be some where in the McIDAS setup.  Since this was working,
  the only thing I can think of is that the file SCHEMA has somehow been
  deleted from the directory in which you are decoding XCD products.

Tom


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