[thredds] thredds4.5 and Feature Collections

• To: thredds@xxxxxxxxxxxxxxxx
• Subject: [thredds] thredds4.5 and Feature Collections
• From: Roy Mendelssohn - NOAA Federal <roy.mendelssohn@xxxxxxxx>
• Date: Thu, 30 Oct 2014 16:17:36 -0700

Hi All:

Nothing like FeatureCollections to help one feel old and slow - and boy do I 
feel old and slow.  I have been putting off upgrading to thredds 4.5 just 
because of the changes  (I had enough trouble getting featureCollections 
working the first time around).

I have a working thredds4.3 feature collection that is failing with thredds4.5 
on my test server on my laptop.  So, though what is wrong is probably obvious, 
it hasn’t been obvious to me, nor to my bum knee.  So here goes.

1.  Do I understand correctly that a featureCollection will only work in 
thredds4.5 with TDM running, or is that only if the dataset is being updated?

2.  If I look at:

http://www.unidata.ucar.edu/software/thredds/current/tds/UpgradingTo4.5.html

I see:

 <update startup="nocheck" trigger="allow"/>
 <tdm startup="true" rescan="0 8,23,38,53 * * * ? *" trigger="allow"/>
replaced with:

  <update startup="never" trigger="allow"/>
  <tdm rewrite="test" rescan="0 8,23,38,53 * * * ? *" trigger="allow"/>
I had update on startup before  (more below) does it need to be “never” always  
(or basically I am unclear in what sense one  replaces the other).  I didn’t 
have an update command, just 

       <tdm startup="true" rescan="0 0/15 * * * ? *" trigger="allow"/>


I have looked at the logs and it is unclear to me what is causing the error.  
Below I have put what I hope are the relevant parts of the the catalogs.  If 
someone can point out the problem, I would be most grateful.

-Roy

thredds4.3:

     <featureCollection name="FNMOC NAVGEM 0.5-degree 6-hourly Pressure" 
featureType="GRIB" harvest="true" path="FNMOC/navgem/pressure/6hr">
       <dataFormat>GRIB-1</dataFormat>
       <metadata inherited="true">
          <serviceName>all</serviceName>
          <documentation type="summary">
              FNMOC 1-degree pressure fields from the NOGAPS model
           </documentation>
       </metadata>

       <collection 
spec="/u00/FNMOC/NAVGEM/pressure/**/US058GMET-GR1mdl.0018_0056_00000F0..#yyyyMMddHH#_0102_000000-000000pres$"
                   olderThan="5 min"/>
       <tdm startup="true" rescan="0 0/15 * * * ? *" trigger="allow"/>
       <gribConfig datasetTypes="Best LatestFile" />
     </featureCollection>

thredds4.5:

     <featureCollection name="FNMOC NAVGEM 0.5-degree 6-hourly Pressure" 
featureType="GRIB1" harvest="true" path="FNMOC/navgem/pressure/6hr">
       <dataFormat>GRIB-1</dataFormat>
       <metadata inherited="true">
          <serviceName>all</serviceName>
          <documentation type="summary">
              FNMOC 1-degree pressure fields from the NOGAPS model
           </documentation>
       </metadata>

       <collection 
spec="/u00/FNMOC/NAVGEM/pressure/**/US058GMET-GR1mdl.0018_0056_00000F0..#yyyyMMddHH#_0102_000000-000000pres$"
                   olderThan="5 min"/>
        <update startup="never" trigger="allow"/>
       <tdm rewrite="test" rescan="0 0/15 * * * ? *" trigger="allow"/>
       <gribConfig datasetTypes="TwoD Best LatestFile" />
     </featureCollection>



**********************
"The contents of this message do not reflect any position of the U.S. 
Government or NOAA."
**********************
Roy Mendelssohn
Supervisory Operations Research Analyst
NOAA/NMFS
Environmental Research Division
Southwest Fisheries Science Center
***Note new address and phone***
110 Shaffer Road
Santa Cruz, CA 95060
Phone: (831)-420-3666
Fax: (831) 420-3980
e-mail: Roy.Mendelssohn@xxxxxxxx www: http://www.pfeg.noaa.gov/

"Old age and treachery will overcome youth and skill."
"From those who have been given much, much will be expected" 
"the arc of the moral universe is long, but it bends toward justice" -MLK Jr.