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Re: 20010426: New LDM/IDD node

Hi Adam,

(jweber) laraine:/home/jweber 1 % ldmping -i5 -h sirocco.srcc.lsu.edu
Aug 23 19:55:33      State    Elapsed Port   Remote_Host
rpc_stat
Aug 23 19:55:33 RESPONDING   0.127509  388   sirocco.srcc.lsu.edu  
Aug 23 19:55:38 RESPONDING   0.036370  388   sirocco.srcc.lsu.edu  
Aug 23 19:55:43 RESPONDING   0.035674  388   sirocco.srcc.lsu.edu  
Aug 23 19:55:48 RESPONDING   0.035661  388   sirocco.srcc.lsu.edu  
Aug 23 19:55:53 RESPONDING   0.035857  388   sirocco.srcc.lsu.edu  
Aug 23 19:55:58 RESPONDING   0.035385  388   sirocco.srcc.lsu.edu  
Aug 23 19:56:03 RESPONDING   0.035772  388   sirocco.srcc.lsu.edu  
Aug 23 19:56:08 RESPONDING   0.035702  388   sirocco.srcc.lsu.edu  


Hmmm, cannot replicate here. This lends me to believe it may have
something to do with your ISP or network conditions. Perhaps it is getting
"clogged" and therefore cannot resolve the ldmping packets.

The NNEXRAD issue may also be playing a part, we (LSU) may be feeding too
many folks the NNEXRAD feed, so the machine may fall behind for awhile
during these peak data periods...When this happens again, try doing a
traceroute, I know these are small packets, but it may lend some
additional info.. 


There is no reason the LDM should just quit, and I am very surprised there
is no log entry regarding the shutdown. Could you please snip the tail of
your log and send to me, maybe I can see something in there that might
give a clue as to what is going on.

I will contact LSU and see if any other downstream sites have mentioned
difficulties, we have not heard from them here at Unidata..but that does
not always mean all is well.

What are you requesting from LSU?

How is your request line configured?

I guess we still have some "tuning" left for your LDM..


I am cc'ing Anne Wilson who helps develop the LDM code, she is away this
week, but will be back monday and can lend insight then if we have not
solved the problem by then.

Thank you,

 -Jeff
____________________________                  _____________________
Jeff Weber                                    address@hidden
Unidata Support                               PH:303-497-8676 
NWS-COMET Case Study Library                  FX:303-497-8690
University Corp for Atmospheric Research      3300 Mitchell Ln
http://www.unidata.ucar.edu/staff/jweber      Boulder,Co 80307-3000
________________________________________      ______________________

On Thu, 23 Aug 2001, adam  taylor (994) wrote:

> I am the new contact.  address@hidden
> 
> I have an interesting problem on this end but I'm not sure who to direct
> this to.  When i run:
> 
> ldmping -i5 -h sirocco.srcc.lsu.edu
> 
> I get:
> 
> (DATE)     State Elapsed  Port Remote_Host          rpc_stat
> (THE DATE) NAMED 12.132903   0 sirocco.srcc.lsu.edu can't contact
>                                                     portmapper: 
>                                                     RPC: Timed out 
> and i get that almost without fail every time.  Every once and a 
> while i get it to say RESPONDING and a time of around 3 or so.
> 
> I have gotten numbers in the 30's before but for the most part, 12 or so
> is the average.
> 
> Also, I have been watching LSU's feed for a while and there are 5 to ten
> minute times where i get nothing but nexrad feed products and even then it
> is real slow.
> 
> Also one more thing, the ldm server is just spontaniously quiting with no
> error message of anykind.  I have noticed that it happens, or seems, then
> when there is a really bad network lag it seems to quit.  I was watching
> it today and just all of a sudden the feed stopped.  when i ran ldmadmin
> isrunning it came back as no.  I have version 5.1.2 running on a dual P3
> 933 with 1 GIG RAM running RedHat 7.0
> 
> Any throughts on this???
> 
> Thanks in advance
> 
> Adam
> _________________________________________________________________________
> 
> On Thu, 23 Aug 2001, Jeff Weber wrote:
> 
> > Hey Adam, 
> > 
> > While I have you...
> > 
> > Is 
> > 
> > Chris Clarke
> > 
> > address@hidden
> > 
> > 318-342-1891
> > 
> > Still current contact info for UNL or should you  be the contact?
> > 
> > Thank you,
> > 
> > -Jeff
> > ____________________________                  _____________________
> > Jeff Weber                                    address@hidden
> > Unidata Support                               PH:303-497-8676 
> > NWS-COMET Case Study Library                  FX:303-497-8690
> > University Corp for Atmospheric Research      3300 Mitchell Ln
> > http://www.unidata.ucar.edu/staff/jweber      Boulder,Co 80307-3000
> > ________________________________________      ______________________
> > 
> > On Thu, 23 Aug 2001, adam  taylor (994) wrote:
> > 
> > > Ok, the feed has decided to return to normal, we are finally getting the
> > > HDS and WMO feeds too.  Thanks anyways.
> > > 
> > > Adam
> > > 
> > > 
> > 
> > 
> 
>