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20040122: LDM performance +

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  • Subject: 20040122: LDM performance +
  • Date: Thu, 22 Jan 2004 14:30:46 -0700 (MST)
Hi Chris,

How are things in beautiful FLA?

I see the mighty Avalanche handed Florida a nice 6-5 loss yesterday :)

On a more serious note:


1)

Please check your ldmd.conf file on:

 wxdev3.db.erau.edu

We are seeing a leading .* on your requests.


    ~/logs: fgrep '[5550]' `ls -rt ldmd.log*` | less
    ldmd.log.14:Jan 08 20:04:34 atm.geo.nsf.gov wxdev3(feed)[5550]:
up6.c:331: Starting Up(6.0.14/6):
20040108165450.524 TS_ENDT {{CONDUIT,  ".*avn*"}}

The regular-expression ".*avn*" is pathological because of the (useless)
".*" prefix.  I wouldn't be surprised if the upstream process on Atm was
spending most of its time in the regular-expression library.


Information on pathological regular expressions can be found at


http://my.unidata.ucar.edu/content/software/ldm/ldm-6.0.14/basics/ERE.html

2)

Please place the line:

exec    "rtstats -h rtstats.unidata.ucar.edu"

at or near the top of your ldmd.conf file.

i.e.

# Programs that share a queue with rpc.ldmd
# are started by it and are in the same process group.
#

exec    "xcd_run MONITOR"
exec    "pqbinstats"
exec    "pqact"
exec    "pqact -f NNEXRAD /usr/local/ldm/etc/pqact.nexrad"
exec    "rtstats -h rtstats.unidata.ucar.edu"

exec    "/opt/ldm/noaaport/nwstg_mps0"
exec    "/opt/ldm/noaaport/goese_mps1"
exec    "/opt/ldm/noaaport/goesw_mps2"
exec    "/opt/ldm/noaaport/gms-meteo_mps3"

3)

You indicated a desire for GEM model output from the CMC, is:

wxdev3.db.erau.edu

the machine you wish it sent to...( do you have an IP as well)..?

Jeff
---------------------------------------------------------------------
Jeff Weber                                    address@hidden        :
Unidata Program Center                        PH:303-497-8676        :
University Corp for Atmospheric Research      3300 Mitchell Ln       :
http://www.unidata.ucar.edu/staff/jweber      Boulder,Co 80307-3000  :
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