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Re: LDM




When you first came back online, your data was flowing, but now that you've been up for awhile your latency seems to be growing. Here is what I get with a notifyme, these are getting older and older in the past half hour.

Sorry for the delay in getting back to you, but my wife had emergency surgery on Tuesday evening and again on Wednesday morning. I've been ignoring my email during that time, but I'm back to work now.


I saw the same phenomena you refer to. I did an ldmadmin watch at that time and think I have a partial answer.

About 95% or more of the messages that were coming in were NNEXRAD. They seemed to be coming in as fast as my screen could display them. I don't usually see that many NEXRAD messages, so I don't think this was normal.

I was getting an occasional DDPLUS message with DTG's that were getting, relatively speaking, older and older as time passed. I never saw any HDS messages, but they were probably in there, somewhere.

Larry


---===---=-=-=-=-=-=-=-=-=-=-=====[\/]=====-=-=-=-=-=-=-=-=-=-=---===---
-----===(* Climate's what we expect, but weather's what we get. *)===-----
Larry Riddle : Climate Research Division : Scripps Institution of Oceanography
University of California, San Diego : La Jolla, California 92093-0224
Phone: (858) 534-1869 : Fax: (858) 534-8561 : E-Mail: address@hidden



From address@hidden Fri Sep  6 11:23:42 2002
From: Mike Voss <address@hidden>
Subject: Re: LDM - "can't contact portmapper"

Larry,

Thanks for getting back to me on this, I hope your wife is doing well.

On a related matter, and this may or may not have anything to do with
your network, last night for about 12 hours my LDM was out with the
following message in the log file. In looking at the support archives
it appears that recently these messages are due to various firewall
implementations of "Packetshapper" software. I contacted my network
folks and they assured me that "packetshapper" is not running, and
nothing of the sort. So, I thought I would check with you to see if
anything like this is being implemented at UCSD.

--------LDM LOG file------
Sep 06 09:16:32 rossby 132.239.114.58[18929]: run_requester: 20020906071632.744 TS_ENDT {{HDS, ".*"}}
Sep 06 09:17:02 rossby aeolus[18928]: FEEDME(aeolus.ucsd.edu): can't contact por
tmapper: RPC: Timed out
Sep 06 09:17:07 rossby 132.239.114.58[18929]: FEEDME(132.239.114.58): can't cont
act portmapper: RPC: Timed out
Sep 06 09:29:27 rossby aeolus[18928]: run_requester: 20020906072927.397 TS_ENDT {{NNEXRAD, "^SDUS5."},{FNEXRAD, ".*"},{DDPLUS, ".*
Sep 06 09:29:32 rossby 132.239.114.58[18929]: run_requester: 20020906072932.967 TS_ENDT {{HDS, ".*"}}


-----------------------------

Thanks,
Mike



At 04:30 PM 9/6/2002 +0000, you wrote:

When you first came back online, your data was flowing, but now that you've been up for awhile your latency seems to be growing. Here is what I get with a notifyme, these are getting older and older in the past half hour.

Sorry for the delay in getting back to you, but my wife had emergency surgery on Tuesday evening and again on Wednesday morning. I've been ignoring my email during that time, but I'm back to work now.

I saw the same phenomena you refer to.  I did an ldmadmin watch at that time 
and think I have a partial answer.

About 95% or more of the messages that were coming in were NNEXRAD.  They 
seemed to be coming in as fast as my screen could display them.  I don't 
usually see that many NEXRAD messages, so I don't think this was normal.

I was getting an occasional DDPLUS message with DTG's that were getting, 
relatively speaking, older and older as time passed.  I never saw any HDS 
messages, but they were probably in there, somewhere.

Larry


---===---=-=-=-=-=-=-=-=-=-=-=====[\/]=====-=-=-=-=-=-=-=-=-=-=---===--- -----===(* Climate's what we expect, but weather's what we get. *)===----- Larry Riddle : Climate Research Division : Scripps Institution of Oceanography University of California, San Diego : La Jolla, California 92093-0224 Phone: (858) 534-1869 : Fax: (858) 534-8561 : E-Mail: address@hidden



--------------------------
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


From address@hidden Fri Sep  6 14:08:13 2002
Subject: Re: LDM - "can't contact portmapper"

Thanks for getting back to me on this, I hope your wife is doing well.

She's home and feeling better.

On a related matter, and this may or may not have anything to do with your network, last night for about 12 hours my LDM was out with the following message in the log file. In looking at the support archives it appears that recently these messages are due to various firewall implementations of "Packetshapper" software. I contacted my network folks and they assured me that "packetshapper" is not running, and nothing of the sort. So, I thought I would check with you to see if anything like this is being implemented at UCSD.

The LDM shut itself down last night for no known reason. I brought it back up first thing this morning and it seems to be running OK at this time. Do you have data coming in now?


To the best of my knowledge, we are not running any firewall software. I will check for certain when/if I can get an appointment with my system admin.

I've rebuilt my ldmd.conf file so that FNEXRAD and NNEXRAD data are fed to aeolus via "192.52.106.21" (which is thelma's IP address) and everything else is fed via "thelma.ucar.edu". I'm hoping that running parallel feeds from thelma will allow the DDPLUS and HDS data to stay more current. Stranger things have happened.

In any case, let me know what, if any, difference this makes at your end.

Larry


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