Re: CONDUIT Migration

Steve,

I am leaving for vacation tomorrow morning, can this wait until
the first week of August when I'm back?

Side note, we'll be in the Boulder area next Wed/Thur, maybe
my family and I will swing by Unidata and say hi to everyone..

Pete

In a previous message to me, you wrote: 

 >
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 >
 >Pete and David,
 >
 >We would like to add data to the CONDUIT data stream. Following feedback
 >from the message below, users are not ready at this time to have the 1
 >degree GFS go away, so at this time, we are looking at a bandwidth
 >increase for the 0.5 degree GFS, and RUC2 hourly grids.
 >
 >One item related to GEMPAK that Pete had mentioned was the amount of
 >CPU required to decode GRIB2. I have modified the GEMPAK dcgrib2 decoder
 >for 5.9.3 to eliminate the unpacking and repacking of these grids using
 >existing GRIB1 bit packing, so now it is just about the same as using
 >FILE.
 >
 >As you are both directly affected by any increase in bandwith for
 >CONDUIT, I would like to make sure this is within your capability.
 >We are duplicating all data products at the moment for a peak of 4GB of
 >data per hour. In order to transition the products, we would phase in
 >the new names over a period of days/weeks so that you would not have to
 >relay duplicate data, but you do have the capability to receive that
 >data now. 
 >
 >The NCEP LDM server for the new CONDUIT stream of products is
 >ncepldm.woc.noaa.gov. You should be configured to connect to that name
 >now. This is a front end to 2 machines named ldm1.woc.noaa.gov and
 >ldm2.woc.noaa.gov. Eventual plans are for NCEP to have 6 machines that
 >the virtual name ncepldm.woc.noaa.gov can access (adding 2 each at the
 >Southern Region office in Fort Worth and at NOAAs' Boulder location). 
 >
 >I will be updating the documentation of request lines and pqact actions
 >for the NCEP file names. If you have any questions, please let me know.
 >
 >Steve Chiswell
 >Unidata User SUpport
 >
 > 
 >
 >
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 >Content-Disposition: inline
 >Content-Description: Forwarded message - CONDUIT testing
 >Content-Type: message/rfc822
 >
 >Subject: CONDUIT testing
 >From: Steve Chiswell <address@hidden>
 >Reply-To: address@hidden
 >To: address@hidden, address@hidden
 >Cc: address@hidden
 >Content-Type: text/plain; charset=ISO8859-1
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 >Organization: Unidata
 >Message-Id: <address@hidden>
 >Mime-Version: 1.0
 >X-Mailer: Ximian Evolution 1.2.0 
 >Date: 03 May 2006 10:19:12 -0600
 >
 >Pete and David,
 >
 >We're exploring options at NCEP to add products to the CONDUIT
 >data stream. Would you mind verifying that you are able to
 >connect to the host ldm2.woc.noaa.gov either with ldmping
 >or notifyme from f5 and flood?
 >
 >This host resides at the NOAA operatins center and directly accesses
 >NCEP's new servers, so the products (currently GFS only) being inserted
 >into the queue have NCEP file names rather than the NWS FTP file names
 >that the current CONDUIT products have, so please don't open
 >a feed request yet that would let these duplicate but MD5 unique
 >products escape to downstream sites. The host at WOC isn't a permanent
 >machine yet, so may go up and down. If/when there are new products, we
 >can use the OK/NOT features of the ldmd.conf ALLOW entries to
 >enable you to get products if you wish without passing them on to an
 >unexpecting downstream site.
 >
 >Please let me know if you have problems connecting.
 >
 >Thanks,
 >
 >Chiz
 >
 >--=-LakfCynbWmlZZiWYydUo--


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^ Pete Pokrandt                    V 1447  AOSS Bldg  1225 W Dayton St^
^ Systems Programmer               V Madison,         WI     53706    ^
^                                  V      address@hidden       ^
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^ University of Wisconsin-Madison  V       262-0166 (Fax)             ^
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