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[CONDUIT #AJB-585237]: Duplicate CONDUIT toplevels now active in Boulder, CO

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  • Subject: [CONDUIT #AJB-585237]: Duplicate CONDUIT toplevels now active in Boulder, CO
  • Date: Fri, 15 Oct 2010 07:43:59 -0600
Hi Art,

We have been in contact with the folks at the WOC recently about parallel
toplevel machines that they have setup for CONDUIT distribution.  They
are wanting to conduct a test of the parallel systems as soon as possible
since the location hosting the existing machines (SSMC) will have a 
power outage of about half a day in mid November.  Rebecca Cosgrove
sent me the following note this morning letting me know the names
of the machines that they want all sites requesting CONDUIT data
from toplevels (i.e., Unidata and Penn State) to use:

  Date:    Thu, 14 Oct 2010 18:28:09 EDT
  To:      Unidata Support <address@hidden>
  cc:      Dataflow Team <address@hidden>, _NOAA WOC <address@hidden>
  From:    Rebecca Cosgrove <address@hidden>
  Subject: Hostnames for CONDUIT

  Here are the hostnames for the CONDUIT systems in Boulder and Silver Spring.
  Just so I don't drop any balls... you said you'd contact PSU with the 
  new names, right?

  ncepldm1.woc.noaa.gov (SSMC)
  ncepldm4.woc.noaa.gov (BOULDER)

NB:  These are the names of the LVS server front ends to the clusters
in each location.  The following comment I just received explains why
the name you may currently be using works:

  Date:    Fri, 15 Oct 2010 09:32:31 EDT
  To:      Unidata User Support <address@hidden>
  cc:      Rebecca Cosgrove <address@hidden>, 
           Dataflow Team <address@hidden>, _NOAA WOC <address@hidden>
  From:    Chi Kang <address@hidden>
  Subject: Re: 20101014: Hostnames for CONDUIT

  No they are not the names of the each server.

  >>ncepldm1.woc.noaa.gov (SSMC) (3 ldm servers in the back)
  >>ncepldm4.woc.noaa.gov (BOULDER) (3 ldm severs in the back)

  these are the hostnames of the ip address on the LVS directors.

  ncepldm.woc.noaa.gov has the same IP as ncepldm1.woc.noaa.gov we would
  like you to switch the hostname you use to connect with us.

  WOC has a numbering system, w1 sites are SSMC  / w2 ITC / w3 Norman /
  w4 boulder / w5 SRH / w6 Seattle, etc.

So, please do the following:

- use 'notifyme' to verify that you are ALLOWed to request data from
  each WOC machine listed above

- change your ~ldm/etc/ldmd.conf REQUEST line for CONDUIT from the SSMC
  machine to ncepldm1.woc.noaa.gov

- add a redundant CONDUIT feed to the Boulder machine, ncepldm4.woc.noaa.gov

- stop and restart your LDM

Thanks in advance for doing this quickly!

Cheers,

Tom
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