Good afternoon,
Lately we've been noticing that the GFS grib2 files coming in over the LDM
don't always completely download (partial or missing files). Yet, the GFS
GEMPAK grid files always completely download. Our pqact is setup to both
download the raw grib2 files and create GEMPAK grid files (see pqact.conf /
ldmd.conf entries below)
pqact.conf
#GFS GRIB2 FILES (00Z)
CONDUIT gfs.t(..)z.pgrbf([0-9]+).grib2
FILE data/grib/gfs/\1/gfs.t\1z.pgrbf\2.grib2
#GFS GEMPAK FILE (00Z)
CONDUIT gfs.t(..)z.pgrbf([0-9]+).grib2
PIPE decoders/dcgrib2 -d data/gempak/logs/dcgrib2_CONDUITgfs.log
-e GEMTBL=/data/gempak/gempak/tables
data/grid/gfs/\1/gfs.t\1z.pgrbf\2.gem
ldmd.conf
exec "pqact -f CONDUIT etc/pqact.conf"
REQUEST CONDUIT "gfs\.t00z.pgrbf.*" PRIMARY
REQUEST CONDUIT "gfs\.t00z.pgrbf.*" SECONDARY
I've read several support requests dealing with CONDUIT latency. One
possible solution would be to split the CONDUIT feed into several streams as
noted in
(http://www.unidata.ucar.edu/support/help/MailArchives/idd/msg04397.html ).
request CONDUIT "MT.gfs_CY.(00|12).*[05]$" idd.cise-nsf.gov PRIMARY
request CONDUIT "MT.gfs_CY.(00|12).*[16]$" idd.cise-nsf.gov PRIMARY
request CONDUIT "MT.gfs_CY.(00|12).*[27]$" idd.cise-nsf.gov PRIMARY
request CONDUIT "MT.gfs_CY.(00|12).*[38]$" idd.cise-nsf.gov PRIMARY
request CONDUIT "MT.gfs_CY.(00|12).*[49]$" idd.cise-nsf.gov PRIMARY
My question is, when splitting a CONDUIT feed into several streams, how
would we have to change our pqact.conf entries?
Would the following syntax be correct?
Before:
CONDUIT gfs.t(..)z.pgrbf([0-9]+).grib2
FILE data/grib/gfs/\1/gfs.t\1z.pgrbf\2.grib2
After:
CONDUIT[05]$ gfs.t(..)z.pgrbf([0-9]+).grib2
FILE data/grib/gfs/\1/gfs.t\1z.pgrbf\2.grib2
Before:
CONDUIT gfs.t(..)z.pgrbf([0-9]+).grib2
PIPE decoders/dcgrib2 -d data/gempak/logs/dcgrib2_CONDUITgfs.log
-e GEMTBL=/data/gempak/gempak/tables
data/grid/gfs/\1/gfs.t\1z.pgrbf\2.gem
After:
CONDUIT[16]$ gfs.t(..)z.pgrbf([0-9]+).grib2
PIPE decoders/dcgrib2 -d data/gempak/logs/dcgrib2_CONDUITgfs.log
-e GEMTBL=/data/gempak/gempak/tables
data/grid/gfs/\1/gfs.t\1z.pgrbf\2.gem
Thanks in advance for your help,
Evan Lowery
