Re: [las_users] Dataset Remembers Vector Configuration

[Cyndy Chandler <cchandler@xxxxxxxx>]

John,

This sounds like a cache problem to me.
I have several test LAS running at my site, and in each of the 
$LAS_ROOT/server/las.xml configuration files, I have set the the server 
property 'use_cache' to FALSE.  This allows me to test modifications to 
various server components, because each product returned by LAS is 
generated again, and not coming from a cached version.  You can see that 
a cache of products would be useful for server performance reasons, but 
for a testing environment, it can be problematic.

<properties>
  <product_server>
   <use_cache>false</use_cache>
  </product_server>

To specify that the server should not use cached products to respond to 
requests, but generate new ones each time.

See this document for an explanation
http://ferret.wrc.noaa.gov/Ferret/LAS/Documentation/manual/customize.html

Note - You must be using at least LAS v6.2

hope this helps,
Cyndy


John.Schattel@noaa.gov wrote:

> Hi All,
>
> I have an LAS running which had one vector defined using the u and v 
> variables (surface current) in a dataset.  The dataset I am using also 
> contains variables u_air and v_air (components of the wind).  So I 
> added another vector definition to the dataset .xml file.  I then 
> changed a custom script that was only plotting u and v so that it would 
> only plot u_air and v_air.  Finally I performed a make to rebuild the 
> LAS.  The new LAS showed both vector check boxes.
>
> Of the five files (datasets) that you can click on in the LAS, the ones 
> that I had previously clicked on (had seen the u/v vector 
> configuration) would still only produce surface current plots 
> regardless of which of the two available vector check boxes were 
> selected.  When I clicked a file that had not been clicked on, I could 
> get the wind vectors to plot.  When I changed back to just u and v.  
> The files that had been used to plot u_air and v_air still plotted the 
> wind data.
>
> How is the LAS remembering this configuration information and how do 
> I "reset" the relationship between dataset and the vector operations in 
> the LAS?
>
> In advance, thanks for any light you can shed on this difficult to 
> understand behavior.
>
> John
>
>  

--
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Cyndy Chandler		| voice: (508) 289-2765
MS #43, WHOI		| Office hrs: M-F ~ 9-4
Woods Hole, MA  02543	| FAX: (508) 457-2161
cchandler@whoi.edu | http://www.whoi.edu/people/cchandler
Ocean Carbon and Biogeochemistry Data Management Office
Department of Marine Chemistry and Geochemistry
Woods Hole Oceanographic Institution