Re: [las_users] F-TDS error

[Roland Schweitzer <Roland.Schweitzer@xxxxxxxx>]

On 12/09/2010 10:43 AM, John Relph wrote:

Roland Schweitzer wrote:
  

John,

The test that is failing is access to the F-TDS version of the data
URL for the data sets installed with LAS.  When LAS starts is creates
a small journal file in the directory you chose in the configuration
step which sets up access to that data set via F-TDS. When I click on
the LAS OPeNDAP link (http://data.nodc.noaa.gov/thredds/dodsC/las/) I
see the default data sets instead of those that are configured into
your LAS.
    

Where is the name of that directory recorded in the configuration?  That
is, in which configuration files would I find the name of that directory
so that I can verify that the configuration is correct?
  

$TOMCAT_HOME/webapps/las/WEB-INF/classes/resources/ferret/FerretBackendConfig.xml

There are actually three directories that are used for LAS and F-TDS to communicate and they are attributes on the <invoker> element:

 <invoker base_dir="resources/ferret"
                 executable="/home/porter/tmap/ferret/x86_64-linux/bin/ferret"
                 time_limit="3600" template_dir="templates"
                 output_dir="/home/porter/rhs/tomcat/webapps/las/output"
                 http_base_url = "http://porter.pmel.noaa.gov:8920/las/output"
                 iosp_script_dir="resources/iosp/scripts"
                 iosp_temp_dir="/home/porter/rhs/tomcat/content/las/conf/server/temp"
              iosp_data_dir="/home/porter/rhs/tomcat/content/las/conf/server/data/dynamic"
              las_tfds_data_dir="/home/porter/rhs/tomcat/content/las/conf/server/data"
                 iosp_base_dir="resources/iosp"
                 opendap_base_url = "http://porter.pmel.noaa.gov:8920/thredds/dodsC/output"/>

I'm not sure why those files are not being written at start up, but
perhaps there is a permission problem with the directory vis a vis the
process that is running tomcat.  F-TDS and LAS need to write in that
directory to do their work.  You can remove the default data set
directories now that you have your own data configured, but you should
see new directories created when LAS starts.
    

I don't see those directories at all.  Of course, since I'm not sure
where I'm looking, I don't know exactly what I'm looking for either.
  

In my case, you see the directory is called: /home/porter/rhs/tomcat/content/las/conf/server/data

which looks like:

[rhs@porter ferret]$ ls /home/porter/rhs/tomcat/content/las/conf/server/data
coads_climatology_cdf             NOAA_NCEP_EMC_CMB_Ocean_Analysis_ml
dynamic                           ocean_atlas_subset
levitus_climatology_cdf          
NOAA_NCEP_EMC_CMB_Ocean_Analysis

Another possibility is that the FerretBackendConfig.xml file and the
FerretConfig.xml file in F-TDS that are being used are pointing to the
wrong directory for deployment on the public server.
    

In which directories are those two configuration files expected to be
found on a correctly configured system?
  

$TOMCAT_HOME/webapps/las/WEB-INF/classes/resources/ferret/FerretBackendConfig.xml
(as mentioned above) and
$TOMCAT_HOME/webapps/thredds/WEB-INF/classes/resources/iosp/FerretConfig.xml

In most cases these files will be identical.

Roland

        -- John

  

Roland

On 12/09/2010 09:32 AM, John Relph wrote:
    

Folks,

I'm having a problem with LAS 7.2 Beta 2 and F-TDS.  LAS gives the
following error when using the functions under "Apply analysis":
-------
A component needed for your request is down or was not installed.
If you are the site adminstrator, verify that your F-TDS installation is
working correctly, then restart your servlet container (Tomcat) or
reinit your server from the admin page.
-------

The problem can be reproduced by following these steps, using the NODC
LAS at http://data.nodc.noaa.gov/las/ :
1) Choose the World Ocean Atlas 09>  1 degree>  nitrate>  monthly>
Nitrate dataset
2) Click on "Apply analysis" link at the bottom.
3) Choose the "Average" Analysis type and the "Area" Analysis region
type (though other choices result in the same error)
4) Click on "Update Plot". The error shows up in the graph area.

Ferret is installed as part of LAS and TDS, as per
http://ferret.pmel.noaa.gov/LAS/documentation/installer-documentation/installation/installing-and-integrating-tds-with-las/



Have I missed something?

         -- John