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Re: phone message -- sample XML to follow (here it is)

Hi Kevin, Steve:

You should try putting the ncoords attribute on the outer aggregation:

             <netcdf
             xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2";
             ncoords="36500">
               <aggregation type="union">
                  <netcdf
                  
location="file:/data/gfdl_cm2_0/CM2Q-d2_1PctTo4x_j1/pp/atmos/ts/daily/pr_A2.00010101-01001231.nc"
                  />
                  <netcdf
                  
location="file:/data/gfdl_cm2_0/CM2Q-d2_1PctTo4x_j1/pp/atmos/ts/daily/tasmax_A2.00010101-01001231.nc"
                  />
                  <netcdf
                  
location="file:/data/gfdl_cm2_0/CM2Q-d2_1PctTo4x_j1/pp/atmos/ts/daily/tasmin_A2.00010101-01001231.nc"
                  />
               </aggregation>
             </netcdf>

let me know if that helps.

Id like to test this nested aggregation as a use case . Can I get those 9
files? thanks.


Steve Hankin wrote:

(This is a continuation of the conversation that Kevin O'Brien started
with you.)

Hi John,

Below is the ncML and TDS configuration information.  It all "works"
...  except the caching.  Any clues?

     - Steve

===

This from threddsConfig.xml

  <AggregationCache>


<dir>/home/pmel/DataPortal/apache-tomcat-5.5.25/content/thredds/cacheAged/</dir>

    <scour>24 hours</scour>
    <maxAge>90 days</maxAge>
  </AggregationCache>


===

And this is the latest ncML that Kevin tested:  "It took nearly two
minutes to open the aggregation the first time.  After that, accesses
were quick -- evidently caching was working.  Then I restarted the
tomcat server, and again it took nearly two minutes to open the
aggregation.  I could see that the cache file in the caching directory
was again updated after the second tomcat restart (ie, the cache was
rewritten rather than used)..."

<catalog name="test IPCC Datasets"

xmlns="http://www.unidata.ucar.edu/namespaces/thredds/InvCatalog/v1.0";
        xmlns:xlink="http://www.w3.org/1999/xlink";>

  <service name="thisDODS3" serviceType="OpenDAP" base="/thredds/dodsC/" />


     <dataset ID="CM2Q-d2_1PctTo4x_j1 atmos daily all vars
00010101-03001231 test" name="CM2Q-d2_1PctTo4x_j1 atmos daily all vars
00010101-03001231 test"
urlPath="ipcc_ar4_CM2.0_R1_1to4x-0_daily_atmos_00010101-03001231_test">
        <serviceName>thisDODS3</serviceName>
        <netcdf
xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2";>
          <aggregation dimName="time" type="joinExisting">
             <netcdf
xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2";>
               <aggregation type="union">
                  <netcdf


location="file:/data/gfdl_cm2_0/CM2Q-d2_1PctTo4x_j1/pp/atmos/ts/daily/pr_A2.00010101-01001231.nc"

ncoords="36500"   />
                  <netcdf


location="file:/data/gfdl_cm2_0/CM2Q-d2_1PctTo4x_j1/pp/atmos/ts/daily/tasmax_A2.00010101-01001231.nc"

ncoords="36500" />
                  <netcdf


location="file:/data/gfdl_cm2_0/CM2Q-d2_1PctTo4x_j1/pp/atmos/ts/daily/tasmin_A2.00010101-01001231.nc"

ncoords="36500" />
               </aggregation>
             </netcdf>
             <netcdf
xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2";>
               <aggregation type="union">
                  <netcdf


location="file:/data/gfdl_cm2_0/CM2Q-d2_1PctTo4x_j1/pp/atmos/ts/daily/pr_A2.01010101-02001231.nc"

ncoords="36500" />
                  <netcdf


location="file:/data/gfdl_cm2_0/CM2Q-d2_1PctTo4x_j1/pp/atmos/ts/daily/tasmax_A2.01010101-02001231.nc"

ncoords="36500" />
                  <netcdf


location="file:/data/gfdl_cm2_0/CM2Q-d2_1PctTo4x_j1/pp/atmos/ts/daily/tasmin_A2.01010101-02001231.nc"

ncoords="36500" />
               </aggregation>
             </netcdf>
             <netcdf
xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2";>
               <aggregation type="union">
                  <netcdf


location="file:/data/gfdl_cm2_0/CM2Q-d2_1PctTo4x_j1/pp/atmos/ts/daily/pr_A2.02010101-03001231.nc"

ncoords="36500"/>
                  <netcdf


location="file:/data/gfdl_cm2_0/CM2Q-d2_1PctTo4x_j1/pp/atmos/ts/daily/tasmax_A2.02010101-03001231.nc"

ncoords="36500"/>
                  <netcdf


location="file:/data/gfdl_cm2_0/CM2Q-d2_1PctTo4x_j1/pp/atmos/ts/daily/tasmin_A2.02010101-03001231.nc"

ncoords="36500" />
               </aggregation>
             </netcdf>
          </aggregation>
        </netcdf>
      </dataset>

</catalog>




Steve Hankin wrote:

Hi John,

We're at the phone number in the signature line below.  Will follow
this email shortly with some XML fragments ... hoping maybe you have a
suggestion.

   - Steve



--
Steve Hankin, NOAA/PMEL -- address@hidden
7600 Sand Point Way NE, Seattle, WA 98115-0070
ph. (206) 526-6080, FAX (206) 526-6744

"The only thing necessary for the triumph of evil is for good men
to do nothing." -- Edmund Burke