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Re: DODS AS

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  • Subject: Re: DODS AS
  • Date: Thu, 11 Sep 2003 12:31:33 -0600
Joe McLean wrote:
John Caron wrote: 


Joe McLean wrote:

> Hi John,
> Thanks for looking.
> I have been messing with the catalog since I sent the email.
> I received this error (in dodsC/logs/CatalogServlet.log) using your
> example structure of the catalog, so I added a 'Top-level' dataset.
> ---------------------
> [...]
> file:/usr/local/www/html/TOMCAT_DEMO/las/las_servlet/jakarta/webapps/dodsC/WEB-INF/dodsAS/AggServTestCatalog.xml: 
> The content of element type "catalog" must match "(dataset)".
> [...]
not sure where that error is coming from. send me more context if you want. 


from http://unidata.ucar.edu/packages/dods/server/agg-html/agg_26.html
[...] A catalog element contains exactly one top-level dataset. [...]

The example you gave me had the structure:
<catalog...>
      <service.../>
      <service.../>
      <dataset..>
            <property.../>
            <dataset...>
            </dataset>
      </dataset>
</catalog>
Since the catalog did not have exactly one dataset element, I changed the structure to: 
<catalog...>
      <dataset...>
            <service.../>
            <service.../>
            <dataset..>
                  <property.../>
                  <dataset...>
                  </dataset>
            </datset>
      </dataset>
</catalog>


sorry, looks like i just cut and pasted incorrectly


>
> ---------------------
>
> I tried with the absolute paths in the stdmet service element both
> with 1 slash and with 3.  The catalog is visible, but the links to
> OPeNDAP products return the error string:
>
> Error { code = -1; message = "HTTPClient/ModuleException"; };
>
if the dods url is in the NcML, use dods: instead of http:
This worked, thanks, I was able to access the aggregated dataset with Ferret. 

the Data Request Form link again appears as
http://stout.pmel.noaa.gov:8180/TestNcML.xml.html

when we need
http://stout.pmel.noaa.gov:8180/dodsC/TestNcML.xml.html


when i do it from here, i get:

http://stout.pmel.noaa.gov:8180/dodsC/TestNcML.xml.html
I used the full path and three slashes in the stdmet service base attribute, file:///. I have cleared browser caches and stop/started the server again. No change. This may be TOMCAT and not the Agg Catalog. 


what version tomcat? might need upgrading?

BTW, there is some info at

http://stout.pmel.noaa.gov:8180/dodsC/debug

that i havent documented, but might be useful anyway
Thanks for your help. I will begin larger aggregations and add lon/lat axes tomorrow. How would I add a global attribute? 


<netcdf ...>
 <nc:attribute name="scale" type="double" value="1.2"/>



NcML tutorial at

http://www.unidata.ucar.edu/packages/netcdf/ncml/NetcdfDataset.html

also see main page

http://www.unidata.ucar.edu/packages/netcdf/ncml/