[thredds] Caching problems with virtual datasets

• To: thredds@xxxxxxxxxxxxxxxx
• Subject: [thredds] Caching problems with virtual datasets
• From: Heiko Klein <Heiko.Klein@xxxxxx>
• Date: Tue, 19 Jan 2010 14:45:28 +0100

Hi,

I have a caching problem with forecast files served within a aggregated
virtual dataset:

<dataset name= "met.no NorthSeaBio4 Aggregation Best Estimates 24hour"
ID="mipom_northseabio4_best_estimate_24h"
urlPath="mipom_northseabio4_best_estimate_24h" >
 <netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2";>
  <aggregation dimName="time" type="joinExisting" recheckEvery="15 min">

 <scan location="/metno/prosjektdata/sea/bio/24h/" suffix=".nc"
subdirs="false"  />

  </aggregation>
 </netcdf>

</dataset>


Some files are regularly deleted/updated, so they shouldn't be cached.
Thredds 4.1 allows now for the <datasetRoot cache="false"> element, but
unfortuneatly, I don't have a datasetRoot, and even when trying to add a
datasetRoot, i.e.

<datasetRoot path="mipom_northseabio4_best_estimate_24h"
location="/metno/prosjektdata/sea/bio/24h/" cache="false"/>

didn't seem to avoid the caching of the files.

Is it possible to avoid caching of nc-files within virtual datasets per
dataset?


Best regards,

Heiko