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20021113: UFRJ as a primary IDD redistribution point for Brazil (cont.)
- Subject: 20021113: UFRJ as a primary IDD redistribution point for Brazil (cont.)
- Date: Mon, 18 Nov 2002 17:46:46 -0700
>From: David Garrana Coelho <address@hidden>
>Organization: UFRJ
>Keywords: 200211131628.gADGSZL18316 IDD-Brazil LDM 5.2.2
Hi David,
> Sorry taking so long to answer your mail, we are having a major
>overload of work last weeks due to several projects we are developing
>here (which have very strict deadlines...:-).
No worries. Things have been very hectic here also.
We have been building a new LDM release that should better allow for
data transmission to sites that are electronically far away from their
feeders. We will begin testing this new distribution tomorrow on a
machine at the Universidade Federal do Pará (UFPA). How soon it will
take to get this new LDM ready to generally distribute is unknown, but
it should be within a month (a nice Christmas present for us :-).
>I will provide you with the username and password of the machine
>which ldm was installed.
Thank you for this.
>I hadn't the time to make the new ldm install, and i apologize.
No need to apologize.
>If you need any root permission files to be
>modified, send an e-mail and it will be done ASAP.
Thanks. I logged onto brisa this evening and downloaded and built
LDM 5.2.2 as follows:
<login as 'ldm'>
cd ~ldm
ftp ftp.nidata.ucar.edu
<user> anonymous
<pass> address@hidden
cd pub/ldm5
binary
get ldm-5.2.2.tar.Z
quit
tar xvzf ldm-5.2.2.tar.Z
cd ldm-5.2.2/src
./configure
make
make install
cd ../bin
vi ldmadmin
-- change '$hostname="@HOSTNAME@"; to $hostname = "brisa.meteoro.ufrj.br";
-- leave the LDM product queue at 400 MB
What is needed now as 'root' is:
cd ~ldm/ldm-5.2.2/src
make install_setuids
After that, the following is needed as 'ldm':
cd ~ldm
rm runtime
ln -s ldm-5.2.2 runtime
cd etc
vi ldmd.conf
-- uncomment the line:
#exec "rtstats -h rtstats.unidata.ucar.edu"
I added this line this evening
Next, stop the LDM and delete and remake its queue:
cd ~
ldmadmin stop
<wait for all LDM processes to exit>
ldmadmin delqueue
ldmadmin mkqueue <- this make take some time so be patient
ldmadmin start
Also, I think that we will want to modify your request lines in
~ldm/etc/ldmd.conf. Initially, I would change your IDS|DDPLUS and HRS
requests to be something like:
request DDPLUS|IDS "^[^S]" thelma.ucar.edu
request DDPLUS|IDS "^S[AR]" thelma1.ucar.edu
request DDPLUS|IDS "^S[^AR]" thelma2.ucar.edu
request HDS "^H.[I-P]... KWB[^K]" thelma3.ucar.edu
request HDS "^H[A-Z][ABCD][A-Z][0-9][0-9] KWB." thelma4.ucar.edu
request HDS ".*(ECMWF|EGRR)" thelma5.ucar.edu
request FSL2 "^FSL\.NetCDF\.NOAAnet\.windprofiler\.(01hr)\.(.*)\..*"
thelma.ucar.edu
These request lines split the request for DDPLUS|IDS data (global
observational data) roughly into thirds by number of products. The HDS
request lines request just the global model output from the HDS feed.
I imagine that this would be all that you will need, since the majority
of model data in HRS covers only North America.
I believe that I already told you that you can not feed the PCWS data
from thelma. This data (ACARS) is only fed point-to-point from
NOAA/FSL to end users. On top of that, I think it is only available to
users in the US.
I didn't make the ldmd.conf request line changes since I need to
understand exactly what data you want to ingest so that any changes I
make will not intefere with what you are attempting to do.
Additionally, before we can make the ldmd.conf changes 'root' will need
to modify /etc/hosts to add a line that looks like:
# Make some aliases for thelma.ucar.edu
192.52.106.21 thelma.ucar.edu thelma1.ucar.edu thelma2.ucar.edu
thelma3.ucar.edu thelma4.ucar.edu thelma5.ucar.edu
This creates 4 aliases for the machine thelma.ucar.edu. We will use
these aliases to split your data request into the smaller pieces that I
indicated above. Be aware that the white space between the IP number
and first name is a tab. The rest of the white space are spaces.
> Only SSH access is provided, no telnet or ftp ports open.
This is how we setup our machines also.
> Once again, we apologize for delay.
Again, no need to apologize. We are just getting to the point of wanting
to test a new LDM, so your email is timely to say the least.
> Best regards,
Please let me know when you have finished the installation of LDM 5.2.2,
or, at least, the steps that need to be done by 'root':
cd ~ldm/ldm-5.2.2/src
make install_setuids
modification of /etc/hosts
Cheers,
Tom
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