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Re: 20020915 SJSU Latency

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  • Subject: Re: 20020915 SJSU Latency
  • Date: Mon, 16 Sep 2002 12:34:41 -0600 (MDT)
Hi Mike, 

Thanks for adding rtstats, was going to do it while I was on, but thought
I would let you designate when rossby went down...

No, it is not normal for these "other" feeds to lag..It did this when I
added motherlode as the HDS feed, odd...

I suspect the IDS and NNEXRAD will catch up, but it is curious why they
take so long to fire up, this may be part of the HDS problem from aeolus.

Still investigating..

Thanks for adding the rtstats, this will help all of us better diagnose
events at SJSU!
 
More later,

-Jeff
____________________________                  _____________________
Jeff Weber                                    address@hidden
Unidata Support                               PH:303-497-8676 
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 Mon, 16 Sep 2002, Mike Voss wrote:

> Jeff,
> 
> I added " rtstat" to ldmd.conf.
> 
> When I restarted the LDM, HDS started flowing right away, but
> IDS|NEXRAD..etc is not flowing. It's like the program is having
> trouble syncing up product queue info to see what products should be
> sent. Is this normal? In my experience it is not normal.
> 
> Data did flow well over the weekend even though our network still has
> a bottle neck with large packets at 130.65.80.1. This problem is still
> being looked at by network engineers...no answer yet on why it's
> happening or what the fix is. I think the data flow has been able to
> overcome this because the rest of the network between here and
> UCSD/UCAR has been fine.
> 
> Gotta go hack away and get my data flowing. Oh, I see IDS|NEXRAD data
> is flowing again, but with a 30 minute latency. Should that really
> happen when I just stop and start the LDM? It was flowing with no
> latency previous to the restart.
> 
> Thanks,
> 
> -Mike
> 
> 
> 
> At 10:12 AM 9/16/2002 -0600, Jeff Weber wrote:
> >HI Mike, 
> >
> >Data seems to be more timely, but we are coming off the weekend..
> >
> >Will you please add:
> >
> >exec    "rtstats -h rtstats.unidata.ucar.edu"
> >
> >in your ldmd.conf file.
> >
> >And then start and stop..Do this at your convenience.
> >
> >
> >You can place this directly under:
> >
> >exec    "pqbinstats"
> >
> >This will allow us to more closely monitor traffic, and you can access
> >these stats as well at:
> >
> >http://www.unidata.ucar.edu/staff/chiz/latency/rtstats/index2.shtml
> >
> >Thanks,
> >
> >-Jeff
> >____________________________                  _____________________
> >Jeff Weber                                    address@hidden
> >Unidata Support                               PH:303-497-8676 
> >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
> >________________________________________      ______________________
> 
> --------------------------
> Mike Voss                                
> Department of Meteorology               
> San Jose State University                        
> One Washington Square                      
> San Jose, CA 95192-0104   
>              
> 408.924.5204 voice
> 408.924.5191 fax   
> 
>