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Jessica,
I too am ingesting NOAAPORT data using the pqing -P <port number> directly
from our Unisys NOAAPORT
Receive System. I have occasional, unexplained problems with the pqing
just stopping, not receiving data via the socket.
Although I haven't related it to another LDM feeding from this system. In
fact, if I am correct the pqing has little
to do with feeding downstream sites, rather the rpc.ldm does much of that,
I believe.
I am running 3 different pqing processes, with the NRS system filtering
the WMO headers to mimic the Unidata
feed types for compatibility. I am running Linux Mandrake 7.1 on this
system, but the problem also occurred on our
AIX 4.3 RS/6000 when I tested on that platform a few months ago, so I don't
think the problem is platform specific.
* DDPLUS|IDS feed type
* HDS feed type
* NNEXRAD feedtype
Almost always 1 will quit while the others continue. I have felt like the
problem is more likely with the Unisys NRS software, thats
why I haven't brought it to the attention of the LDM users. But it sounds
like you may be having a similar problem. What type of
NRS system are you using?
I have had much better success when I run just 1 pqing process and ingest
everything as WMO. But this
doesn't suit our current environment.
There may be a bug in the way pqing handles socket connections? I would
curious to know how Unidata is
feeding there top level relay sites from the NRS systems? If they are using
the socket connection?
If I figure anything out from this end I will pass it along.
Mike Dross
Duke Energy
Jessica Thomale
<jthomale@xxxxxxxxxxx. To:
<ldm-users@xxxxxxxxxxxxxxxx>, <support@xxxxxxxxxxxxxxxx>
ou.edu> cc:
Sent by: bcc:
owner-ldm-users@unidat Subject: pqing stopped
inserting when downstream requested feed
a.ucar.edu
02/13/2001 09:01 PM
Good Evening,
We are requesting a NOAAPort feed using pqing -P <port number> on a ldm
server that serves this data to downstream ldm hosts.
Today, when the downstream ldm server started requesting a feed from the
upstream ldm server, one of the pqing processes (importing the NWSTG
channel) mysteriously died. I attached a copy of the two ldmd log files.
Both machines are running ldm-5.1.3. The upstream server is a FreeBSD
(version 4.2) box. The downstream server is a Solaris/x86 box (version 8).
There appears to be a problem with the product queue on the upstream ldm
server.
Has anyone experienced any problems similar to this problem?
Thank you in advance for any assistance,
Jessica
--
Jessica M. Thomale
Oklahoma Climatological Survey
E-mail: jthomale@xxxxxx
Mail: 100 E. Boyd, Suite 1210 Norman, OK 73019-1012
Phone: (405) 325-7809
Fax: (405) 325-2550
(See attached file: ldmd.log.downstream)
(See attached file: ldmd.log.upstream)
Attachment:
ldmd.log.downstream
Description: Binary data
Attachment:
ldmd.log.upstream
Description: Binary data
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