[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Staging #NGZ-668874]: RE: Requesting LDM access for FNMOC feed.

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: [Staging #NGZ-668874]: RE: Requesting LDM access for FNMOC feed.
  • Date: Thu, 19 Jun 2008 10:28:22 -0600
> O.K. that'd be good.
> 
> -----Original Message-----
> From: Unidata IDD Support [mailto:address@hidden]
> Sent: Wednesday, June 18, 2008 6:33 PM
> To: Zehel, Samuel
> Cc: address@hidden; address@hidden; address@hidden
> Subject: [Staging #NGZ-668874]: RE: Requesting LDM access for FNMOC feed.
> 
> > I'm seeing some strange behavior.
> >
> > I have setup shu.cup.edu to allow 'ANY' feed request to shu1.cup.edu 
> > (158.83.1.171), and I have added a single request of 'REQUEST ANY ".*" 
> > shu.cup.edu' to the ldmd.conf of shu1, however our network monitors show 
> > that there is only about 3.5 Mbit transfer rate between shu and shu1.  This 
> > is confusing, because I'm seeing about an 18.6 Mbit transfer rate between 
> > shu and the outside world.
> >
> > It is also strange that if I perform the following:
> > notifyme -vl- -f CONDUIT -h ldm.meteo.psu.edu -o 3600
> > I get a flow of responses from shu, however if I execute following on shu1:
> > notifyme -vl- -f CONDUIT -h shu.cup.edu -o 3600
> > I get nothing.
> >
> > Are there certain feeds flagged as 'non-forwarded' so that shu cannot 
> > accept 'request' entries for them?
> >
> > P.S. I have eliminated the NGRID data request from shu.cup.edu, however the 
> > dataflow doesn't seem to have decreased very much.
> 
> Hi Samuel,
> 
> All feeds are treated alike in the IDD/LDM world. I suspect there may be 
> firewall issues or volume throttling occurring locally. We can offer you a 
> feed from our machine to shu1 to verify any local issues. I would contact 
> your network folks first to see if they can shed some light on this.
> 
> 
> Cheers,
> 
> Jeff
> 
> Many sites use the LDM internally and have not experienced this issue.
> Jeff Weber
> Unidata User Support
> http://www.unidata.ucar.edu
> 
> Ticket Details
> ===================
> Ticket ID: NGZ-668874
> Department: Support IDD
> Priority: Normal
> Status: Open
> 
> 
Hi Samuel, 

We have an "allow" for shu1 on:

idd.unidata.ucar.edu

What response did you get from your network folks?

Cheers,

Jeff


Jeff Weber
Unidata User Support
http://www.unidata.ucar.edu

Ticket Details
===================
Ticket ID: NGZ-668874
Department: Support IDD
Priority: Normal
Status: Open