[ldm-users] Missing Data Using Primary/Alternate Hosts

[Gerry Creager]

Shelly,

What version of LDM are you running?  Since v6.x, the 
'PRIMARY|ALTERNATE' construct is not needed and identical feeds are 
going to fail over between the 2 servers (kitty, hawk) that have the 
identical requests.  One thing you're likely to see if kitty and hawk 
are co-located is that they'll swap around a lot.  That shouldn't cause 
problems, though.

For the sake, of testing, why don't you mod your ldmd.conf to remove the 
'PRIMARY' and 'ALTERNATE' associated with the CLG/VIS analysis files and 
restart LDM.  You might also want to turn verbose logging on, and 
possibly create a separate pqact instance for the NCV files, at least 
for troubleshooting.

gerry

Shelly Knight wrote:
> Hi,
> 
> We currently have 2 project machines (kitty and hawk) running an ldm and
> ingesting data from our divisions' main ldm server (awl). Kitty and hawk
> then feed about 5-6 project machines.
> 
> We'd like kitty and hawk to serve as primary and alternate feeds, so I
> have the ldmd.conf file setup like this on the project's downstream hosts:
> 
> request EXP     "^([0-9]{12})_NCV_"   kitty.rap.ucar.edu
> request EXP     "^([0-9]{12})_NCV_"   hawk.rap.ucar.edu
> 
> For this particular dataset, we should be receiving files every 5
> minutes. When I have it setup as a primary and alternate feed, the data
> comes in sporadically, but roughly every 10 minutes. If I remove one
> host, we receive the data every 5 minutes.
> 
> What am I doing wrong in my config file? I've attached a copy of the
> whole file for you.
> 
> Thanks!
> Shelly
> 
> Shelly Knight
> ADDS Development Team
> NCAR/RAL
> (303)497-2821
> 
> 
> 
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-- 
Gerry Creager -- gerry.creager at tamu.edu
Texas Mesonet -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.862.3982 FAX: 979.862.3983
Office: 1700 Research Parkway Ste 160, TAMU, College Station, TX 77843