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RE: help with serious LDM feed issues

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  • Subject: RE: help with serious LDM feed issues
  • Date: Sun, 12 Sep 2004 10:57:44 -0400
Ours had to do with TCP and UDP both having to have been forwarded if I recall.
Turns out the packets for LDM are TCP, but the firewall firmware had some kind 
of issue,
and the workaround was to forward both.

Ray

> -----Original Message-----
> From: address@hidden
> [mailto:address@hidden]On Behalf Of Robert Mullenax
> Sent: Sunday, September 12, 2004 10:24 AM
> To: 'address@hidden'; address@hidden
> Subject: RE: help with serious LDM feed issues
> 
> 
> Our IT folks have been all through the firewall and can't seem to find any
> problems.
> However, this was the likely suspect since the firewall is new.  Do you have
> any
> details on what the issue was with your firewall?
> 
> Thanks,
> Robert
> 
> 
> -----Original Message-----
> From: address@hidden
> [mailto:address@hidden]On Behalf Of Ray Weber
> Sent: Sunday, September 12, 2004 9:10 AM
> To: address@hidden
> Subject: RE: help with serious LDM feed issues
> 
> 
> We had an odd issue such as this once with a firewall. Might explore that
> possibility.
> 
> Ray Weber
> MA Skywarn
> 
> > -----Original Message-----
> > From: address@hidden
> > [mailto:address@hidden]On Behalf Of Robert Mullenax
> > Sent: Sunday, September 12, 2004 8:09 AM
> > To: 'address@hidden'
> > Subject: help with serious LDM feed issues
> > 
> > 
> > We are getting a CRAFT feed via LDM and another data feed from an external
> > source.   Starting about 4 days ago, the feed became useless.  Even though
> > there
> > is gobs of bandwidth available even one CRAFT site ends up with latencies
> > over 10-15 minutes, whereas it used to be 2-4 seconds.   The upstream
> > site gets a lot of I/O, can't connect errors while trying to send to our
> > machine.
> > Not only is latency a problem, but even the files we do get are usually
> > incomplete.  I am also receiving an LDM feed from a NOAAport SDI ingestor
> > and that feed is absolutely fine and bulletproof.  
> > Our ldmd.log is full of messages like this:
> > 
> > Sep 12 00:04:21 xxxxxxxx xxx.xxx.xxx.xx[25954]: ERROR: requester6.c:206:
> > Connection to upstream LDM closed
> > 
> > We also get a lot of these: down6.c:511: Discarding incomplete product
> > 
> > Our IS folks checked the firewall and made sure everything is allowed
> > through properly.   I am losing hair and turning gray rapidly over this.
> > Is this an LDM issue and not a network issue?  Anyone have any thoughts?
> > I have stopped and restarted the machine and rebuilt the queue a few
> times.
> > 
> > I am running ldm-6.0.14 on Solaris 9 x86.  This combo has been 100%
> > bulletproof
> > for us.
> > 
> > Thanks,
> > Robert Mullenax
> > 
> > 
> > 
> > 
> > 
> > 
>