Hi all, I am trying to use NcML aggregations in TDS 5.0.0 with WMS, but the 'time' parameter in URL is not having any effect when accessing a 'GetMap' URL. I get the same image regardless of what value I set for 'time'. The value for 'time' is definitely checked, since using the wrong format (e.g. time=hello) gives an error as expected. But a valid timestamp always shows data for the last file in the aggregation. Also, using a valid but out of range timestamp still shows the image for the last file, and doesn't show the error message that THREDDS 4.6.11 did (e.g. 'The value "3000-01" is not valid for the TIME dimension') The full THREDDS version I am using is Version 5.0.0-SNAPSHOT - 2018-02-03T12:01:12. Here is a minimal example catalog showing the problem: <?xml version="1.0" encoding="UTF-8"?> <catalog xmlns="http://www.unidata.ucar.edu/namespaces/thredds/InvCatalog/v1.0"; xmlns:ns2="http://www.w3.org/1999/xlink"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xmlns:xlink="http://www.w3.org/1999/xlink"; name="TDS configuration file" xsi:schemaLocation="http://www.unidata.ucar.edu/namespaces/thredds/InvCatalog/v1.0 http://www.unidata.ucar.edu/schemas/thredds/InvCatalog.1.0.2.xsd";> <service base="/thredds/wcs/" name="wcs" serviceType="WCS"/> <service base="/thredds/wms/" name="wms" serviceType="WMS"/> <service base="/thredds/dodsC/" name="OpenDAPServer" serviceType="OpenDAP"/> <property name="catalog_version" value="2"/> <dataset ID="test.aggregation" name="test.aggregation" urlPath="test.aggregation"> <access serviceName="OpenDAPServer" urlPath="test.aggregation"/> <access serviceName="wms" urlPath="test.aggregation"/> <access serviceName="wcs" urlPath="test.aggregation"/> <netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2"; location="/tmp/simple_aggregation.ncml"/> </dataset> </catalog> where '/tmp/simple_aggregation.ncml' contains: <?xml version="1.0" encoding="UTF-8"?> <netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2"; xmlns:xlink="http://www.w3.org/1999/xlink";> <aggregation dimName="time" type="joinExisting"> <netcdf location="/neodc/esacci/cloud/data/phase-2/L3C/AVHRR-PM/v2.0/AVHRR_NOAA-11/1988/198811-ESACCI-L3C_CLOUD-CLD_PRODUCTS-AVHRR_NOAA-11-fv2.0.nc"/> <netcdf location="/neodc/esacci/cloud/data/phase-2/L3C/AVHRR-PM/v2.0/AVHRR_NOAA-11/1988/198812-ESACCI-L3C_CLOUD-CLD_PRODUCTS-AVHRR_NOAA-11-fv2.0.nc"/> <netcdf location="/neodc/esacci/cloud/data/phase-2/L3C/AVHRR-PM/v2.0/AVHRR_NOAA-11/1989/198901-ESACCI-L3C_CLOUD-CLD_PRODUCTS-AVHRR_NOAA-11-fv2.0.nc"/> </aggregation> </netcdf> I'm using the following WMS URL: https://<hostname>/thredds/wms/test.aggregation?service=WMS&version=1.3.0&request=GetMap&WIDTH=750&HEIGHT=500&STYLES=default&CRS=CRS:84&BBOX=-180,-90,180,90&LAYERS=cot&TIME=1988-11 Note the time is 1988-11. I use the following to find out which files THREDDS is accessing: strace -fp <tomcat PID> 2>&1 | grep -Eo '"/neodc/esacci/.+"' and the output shows that only the 1989-01 file is accessed, which is the final file in the NcML. I can also observe that the map image is the same as the 1989-01 image. (using the 'strace' command and then using OPeNDAP instead of WMS shows the expected files being read, so I think the strace command works as it should). I've tried using the full timestamp format YYYY-MM-DDTHH:MM:SS etc but get the same results. This aggregation works correctly with OPeNDAP, and the same catalog and NcML file work correctly with version 4.6.11, which is why I think it might be a THREDDS problem rather than an NcML problem. But I am not sure. I will attach my threddsConfig.xml and wmsConfig.xml in case there are configuration problems. If anyone knows a fix it would be much appreciated. Thanks, Joe
Attachment:
threddsConfig.xml
Description: threddsConfig.xml
Attachment:
wmsConfig.xml
Description: wmsConfig.xml
thredds archives: