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[Miscellaneous #UFF-250801]: GOES east & west geotiff files
- Subject: [Miscellaneous #UFF-250801]: GOES east & west geotiff files
- Date: Mon, 05 Oct 2015 09:22:46 -0600
Hi Frank,
re:
> Which table imgtyp.tbl entries should I use for the arctic and mollewide
> images that you set up for me? I do see them on the Unidata website table.
Since I don't know the answer to this question, I created a new inquiry in
the GEMPAK department of our inquiry tracking system so that Michael James,
our GEMPAK guy, can chime in.
As far as the things I did on ldm.engin.umich.edu, here goes a high level
overview:
- change the HOME directory for the users 'mcidas' and 'mcadde' to be
/home/mcidas
- install any packages needed to build McIDAS
The command I ran was:
yum install gcc-gfortran gcc-c++ byacc flex ncurses-devel libXt-devel
libXext-devel xorg-x11-fonts-misc xorg-x11-fonts-100dpi xorg-x11-fonts-75dpi
I think that only one of the packages in this list (one of the fonts) needed
to
installed since all of the other ones were already there.
- download, build and install McIDAS-X in the 'mcidas' account
After the install, I made sure that the 'ldm' user could "see" McIDAS
executables in ~mcidas/bin.
The rest of the things I did were in the 'ldm' account:
- add a couple of crontab entries to make sure that log files
are getting rotated
Here are the operative ones now:
# Scour
10 0 * * * bin/ldmadmin scour >> logs/scour.log
#
# Rotate LDM log files
#
0 18 * * * bin/ldmadmin newlog
1 18 * * * bin/newlog logs/scour.log 7
#
# Rotate LDM-McIDAS and ROUTEPP log files
#
2 18 * * * bin/newlog logs/ldm-mcidas.log 7
3 18 * * * bin/newlog logs/ROUTEPP.LOG 7
NB: rotation of the ldm-mcidas log file was sorely needed since the existing
ldm-mcidas log file was 1.7 GB (I deleted it since it held nothing really
useful)
- after verifying that ~ldm/util is in the PATH for 'ldm', I created the
Bourne shell script 'pnga2geotiff.sh'
This script does a variety of things in the process of converting the
PNGA-compressed Global Thermal IR images in the UNIWISC IDD datastream
to GeoTiff:
- makes sure that the output directory exists
- creates needed McIDAS ADDE datasets for input (PNGA-compressed AREA)
and output (GeoTiff) datastes
- copies (IMGCOPY) from the input dataset to the output one
This automatically converts from PNGA-compressed AREA format to
GeoTiff.
- copies the GeoTiff image (which gets created in the ~ldm/mcidas/data
directory; this is the McIDAS working directory for 'ldm') to
the output directory structure (~ldm/data/geotiff/...)
- while investigating why LDM logging was not working correctly (fully
actually), I noticed that the final installation step for the LDM
had not been run:
<as 'root'>
cd ~ldm/ldm-6.5.4/src
make install_setuids
This step changes the mode for the LDM applications rpc.ldmd and
hupsyslog to be setuid root. This is needed for:
- getting port 388 (rpc.ldmd)
- sending a HUP signal to the system logging daemon so that log
files can be rotated (hupsyslog)
- I changed the upstream LDM host from which your machine was
REQUESTing NEXRAD Level III data
The machine you were REQUESTing from had been changed at UIUC
for a new one, and it seems that the new machine's LDM was/is
not ALLOWing your REQUEST(s).
The new upstream host for NEXRAD3 (also known as NNEXRAD) is
idd.meteo.psu.edu.
- I added a REQUEST for the FNEXRAD NEXRAD Level III composites
I setup the upstream for these images to be idd.unidata.ucar.edu.
- I also added some actions in the ~ldm/etc/pqact.conf pattern-action
file
The actions I added were to process UNIWISC (aka MCDIAS) image into
the directory hierarchy (~ldm/data/gempak) that you are using for
GEMPAK.
- I also corrected some pqact.conf actions that were setup to "decode"
(via the ldm-mcidas decoder, pnga2area) UNIWISC images into
/data/ldm directories
Your machine does not have a /data/ldm directory hierarchy, and
'ldm' could not create /data (permission problem, but you really
didn't/don't want to write there anyway (I think that is, of course)).
Left to do:
- I need to go through your LDM pattern-action actions for UNIWISC imagery
to make sure that I added all of the ones that were left to be added,
and to make sure that they are all working correctly.
- evaluate the impact of upgrading your LDM installation to a current
release
LDM-6.4.5 is now very old. The current LDM release is 6.12.15.
NB: I did not upgrade the LDM because I/we have to think hard about
what, if any, impacts this may have on your setup (which maybe none).
- upgrade GEMPAK (?)
This is the toughest decision to be made mainly because the semester is
in full swing (so GEMPAK not being available would have impacts), AND
because Garp is no longer bundled with GEMPAK (it is available, but
it only has community support (for all versions)).
I will try to get to the review of your LDM pqact.conf UNIWISC actions today.
Upgrading the LDM is not of crucial importance, but it should be done
sometime. Upgrading GEMPAK is a much bigger step, but should be done when
you have time to evaluate the new distribution.
Cheers,
Tom
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Ticket Details
===================
Ticket ID: UFF-250801
Department: Support McIDAS
Priority: Normal
Status: Closed