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20050809: 20050808: LDM write errors from decoders

>From: Nancy Selover <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200508092108.j79L8wjo024617

>Steve,
>
>Adding the "/" in Gemenviron helped NWX, as now I can see most of the
>messages and products.  I still get the error message, which has the
>leading "/", but it only happens to certain products, perhaps those are
>products I commented out in the pqact.gempak_nwx file. 

Nancy,

Not every product in NWX is available all the time. A few will only be
broadcast 1x per month (like the 30 day outlook). Some are only broadcast when
a particular event occurs, such as a hurricane local statement.

It sounds like things are normal, unless you have a common product like a 
Zone forecast, MOS, etc which do not appear after at least one day.


>
>The bigger problem is I am still not getting the surface or upper air
>obs or models or satellite images to write to directories.  The
>connection is they are all decoded files.  I have checked the
>pqact.gempak_decoders file, and there is no leading "/" for any of
>entries in that file.  They all say, for example:
>
>HDS    ^[YZ].[A]... KWBH
>       PIPE    decoders/dcgrib2 -d data/gempak/logs/dcgrib2_MRF.log
>               -e GEMTBL=/huser/gempak/GEMPAK5.8.2a/gempak/tables
>
>But, there is NO log directory under /var/data/gempak  
>so I can't see the logs.

The LDM uses relative (to $LDMHOME which was set when LDM was built).
You should copy of link your $GEMEXE/dc* programs to an ~ldm/decoders
directory (which you have to create). You will also want to copy or link 
the shell script $NAWIPS/bin/scripts/dcgunzip to ~ldm/decoders.

If you are receiving the CRAFT feed you will want to copy or link
$NAWIPS/bin/scripts/dccraft_move to an ~ldm/util directory.


The decoders will create their directories, but if they are failing earlier
than that point, you can create the ~ldm/data/gempak/logs directory
by hand. You can always try launching a decoder from the command line,
such as "dcmetr -h". It should print out some help information. If it
fails, then something more basic is wrong.


>
>Also, the other type of entry without the leading "/" is like this:
>
>WMO    ^S[AP]
>       PIPE    decoders/dcmetr -a 500 -m 72 -s sfmetar_sa.tbl
>       -d data/gempak/logs/dcmetr.log
>       -e GEMTBL=/huser/gempak/GEMPAK5.8.2a/tables
>       data/gempak/surface/YYYYMMDD_sao.gem
>
>I did not edit these, except to update the version to 5.8.2a
>
>I am also not getting the satellite imagery and I have set up the
>nsat_links script in the crontab and checked the path.

nsat_links shouldn't be needed, unless you aren't going to use gempak naming
for the pnga2area actions- but rather file to AREAxxxx McIDAS style names.
I haven't used nsat_links for about 4 years. Tom now supports the 
GEMPAK style file name in the McIDAS distribution.


>
>The radar are coming in, but Garp can't see the directory structure.

Your Level III data should be found under
$RAD/NIDS/
where $RAD should be set in Gemenviron to $GEMDATA/nexrad.

Steve Chiswell
Unidata User Support


>
>Nancy
>
>
>-----Original Message-----
>From: Unidata Support [mailto:address@hidden] 
>Sent: Tuesday, August 09, 2005 9:54 AM
>To: Nancy Selover
>Cc: Unidata Support
>Subject: 20050808: LDM write errors from decoders
>
>
>Nancy,
>
>I can help you with GEMPAK decoders and program access to the data.
>
>For the NWX access problems, check your GEMDATA environmantal variable
>as configured in your $NAWIPS/Gemenviron file. That should point to your
>/var/data/ldm/gempak directory. In looking at the error message you show
>below, you are missing the leading "/" in the directory name, and I need
>to know if that was a typo, or the root of the problem.
>
>The environmental variable $TEXT_DATA will be set to $GEMDATA/nwx in
>Gemenviron, so this also relieas on the GEMDATA variable being correct.
>
>Steve Chiswell
>Unidata User Support
>
>
>>From: Nancy Selover <address@hidden>
>>Organization: UCAR/Unidata
>>Keywords: 200508090157.j791vPjo029601
>
>>This is a multi-part message in MIME format.
>>
>>--Boundary_(ID_mRLemyhH004n7qDStD3mNQ)
>>Content-type: multipart/alternative;
>> boundary="Boundary_(ID_ithdHyIr2omZeORHgiZROw)"
>>
>>
>>--Boundary_(ID_ithdHyIr2omZeORHgiZROw)
>>Content-type: text/plain;     charset="us-ascii"
>>Content-transfer-encoding: quoted-printable
>>
>>
>>Gempak can't find the LDM files.  We finally got LDM running after 
>>commenting out the network IP address, and it's busy writing the NWX 
>>and Radar data.  However, Gempak cannot read any of it.  Garp can't 
>>find the directory structure, although the NIDS files are exactly where
>
>>they should be.  The NWX files are all there and show up in the NWX 
>>program, but when I click on any of the files, I get:
>>NWX:  Error scanning directory 'var/data/ldm/gempak/nwx/pub_prod/SFT'
>>or which ever product I selected. =20
>>
>>When I looked at the directory structure, data  is linked to 
>>/var/data/ldm  and /var/data  is owned by root, while  /var/data/ldm is
>
>>owned by ldm and the ldm and gempak users all have permissions. =20 =20
>
>>I can't find this on the e-mail archives.  I have tried checking all 
>>the configuration files to make sure they are sending the data to the 
>>right place, but I can't find anything wrong.  Attached is a piece of 
>>the log file from the ldmd.log, showing that there are write errors 
>>from the decoders, as well as from the Mcidas satellite imagery script.
>
>>I haven't got NSAT_LINKS set yet, so I'm not particularly worried about
>
>>that yet.  But I should be able to get the surface and upper air obs.  
>>I am using the configuration files from mothra (LDM 6.10.0) on the new 
>>version, but I changed the version number for GEMPAK from 5.7.4 to 
>>5.8.2a throughout.  It was easier than trying to find the changes in 
>>products from the old file to the new file. =20
>>
>>Sorry to be such a pest, but this is our first time setting the 
>>programs up from scratch on a new machine (FC3).
>>
>> <<writeerrors.txt>>=20
>>
>>Our older machine crashed that was running Gempak, so I really need to 
>>get this running.  If it's something really simple and stupid I did, 
>>that's great, just let me know.  If there's an e-mail archive that 
>>covers this, send me the link or the exact subject line.  If you need 
>>to poke around in the machine, let me know that, and I'll call you with
>
>>the password.
>>
>>Thank you,
>>Nancy
>>
>>Nancy J. Selover=20
>>Asst. State Climatologist=20
>>Office of Climatology tel: 480-965-0580=20 Arizona State University 
>>fax: 480-965-1473=20 Tempe, AZ 85287-1508 e-mail: address@hidden=20
>>
>>
>>
>>--Boundary_(ID_ithdHyIr2omZeORHgiZROw)
>>Content-type: text/html;      charset="us-ascii"
>>Content-transfer-encoding: quoted-printable
>>
>><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META 
>>HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; = 
>>charset=3Dus-ascii"> <META NAME=3D"Generator" CONTENT=3D"MS Exchange 
>>Server version = 6.5.7226.0"> <TITLE>LDM write errors from 
>>decoders</TITLE> </HEAD> <BODY>
>><!-- Converted from text/rtf format --> <BR>
>>
>><P><FONT SIZE=3D2 FACE=3D"Arial">Gempak can't find the LDM files.&nbsp;
>
>>= We finally got LDM running after commenting out the network IP 
>>address, = and it's busy writing the NWX and Radar data.&nbsp; However,
>
>>Gempak = cannot read any of it.&nbsp; Garp can't find the directory 
>>structure, = although the NIDS files are exactly where they should 
>>be.&nbsp; The NWX = files are all there and show up in the NWX program,
>
>>but when I click on = any of the files, I get:</FONT></P>
>>
>><P><FONT SIZE=3D2 FACE=3D"Arial">NWX:&nbsp; Error scanning directory = 
>>'var/data/ldm/gempak/nwx/pub_prod/SFT'&nbsp; or which ever product I = 
>>selected.&nbsp; </FONT> </P>
>>
>><P><FONT SIZE=3D2 FACE=3D"Arial">When I looked at the directory = 
>>structure, data&nbsp; is linked to&nbsp;&nbsp; /var/data/ldm&nbsp; and 
>>= /var/data&nbsp; is owned by root, while&nbsp; /var/data/ldm is owned 
>>by = ldm and the ldm and gempak users all have permissions.&nbsp; 
>></FONT></P>
>>
>><P><FONT SIZE=3D2 FACE=3D"Arial">&nbsp;</FONT>
>>
>><BR><FONT SIZE=3D2 FACE=3D"Arial">I can't find this on the e-mail = 
>>archives.&nbsp; I have tried checking all the configuration files to = 
>>make sure they are sending the data to the right place, but I can't 
>>find = anything wrong.&nbsp; Attached is a piece of the log file from 
>>the = ldmd.log, showing that there are write errors from the decoders, 
>>as well = as from the Mcidas satellite imagery script.&nbsp; I 
>>haven&#8217;t got = NSAT_LINKS set yet, so I'm not particularly worried
>
>>about that = yet.&nbsp; But I should be able to get the surface and 
>>upper air = obs.&nbsp; I am using the configuration files from mothra 
>>(LDM 6.10.0) = on the new version, but I changed the version number for
>
>>GEMPAK from =
>>5.7.4 to 5.8.2a throughout.&nbsp; It was easier than trying to find the
>
>>= changes in products from the old file to the new file.&nbsp; 
>></FONT></P>
>>
>><P><FONT SIZE=3D2 FACE=3D"Arial">Sorry to be such a pest, but this is =
>
>>our first time setting the programs up from scratch on a new machine = 
>>(FC3).</FONT> </P>
>>
>><P><FONT FACE=3D"Arial" SIZE=3D2 COLOR=3D"#000000"> = 
>>&lt;&lt;writeerrors.txt&gt;&gt; </FONT> </P>
>>
>><P><FONT SIZE=3D2 FACE=3D"Arial">Our older machine crashed that was = 
>>running Gempak, so I really need to get this running.&nbsp; If it's = 
>>something really simple and stupid I did, that's great, just let me = 
>>know.&nbsp; If there's an e-mail archive that covers this, send me the 
>>= link or the exact subject line.&nbsp; If you need to poke around in 
>>the = machine, let me know that, and I'll call you with the = 
>>password.</FONT></P>
>>
>><P><FONT SIZE=3D2 FACE=3D"Arial">Thank you,</FONT>
>>
>><BR><FONT SIZE=3D2 FACE=3D"Arial">Nancy</FONT> </P>
>>
>><P><B><I><FONT SIZE=3D2 FACE=3D"Arial">Nancy J. = 
>>Selover</FONT></I></B><I></I><FONT FACE=3D"Times New Roman"><BR> 
>></FONT><I></I><I><FONT SIZE=3D2 FACE=3D"Arial">Asst. State = 
>>Climatologist</FONT></I><FONT FACE=3D"Times New Roman"><BR> 
>></FONT><FONT SIZE=3D2 FACE=3D"Arial">Office of Climatology tel: = 
>>480-965-0580</FONT><FONT FACE=3D"Times New Roman"><BR> </FONT><FONT 
>>SIZE=3D2 FACE=3D"Arial">Arizona State University fax: = 
>>480-965-1473</FONT><FONT FACE=3D"Times New Roman"><BR> </FONT><FONT 
>>SIZE=3D2 FACE=3D"Arial">Tempe, AZ 85287-1508 e-mail: = 
>>address@hidden</FONT><FONT FACE=3D"Times New Roman"> </FONT> </P> <BR>
>>
>></BODY>
>></HTML>=
>>
>>--Boundary_(ID_ithdHyIr2omZeORHgiZROw)--
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>>--Boundary_(ID_mRLemyhH004n7qDStD3mNQ)--
>>
>--
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>Unidata User Support                                    UCAR Unidata
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