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Hello, I have a collection of ROMS model forecast runs set up in an FMRC. My "TwoD" and "Runs" datasets work fine. However, the "ConstantOffsets" dataset gives a 404 not found when you try to access it. No errors appear in any THREDDS or tomcat logs. Interestingly it's only when you try to access: http://tds.marine.rutgers.edu:8080/thredds/dodsC/roms/espresso/2013_da/avg_roc/offset/ESPRESSO_Real-Time_v2_Averages_Runs_and_Offset_Collections_Offset_12.0hr.html meaning you get the meta data page with the OPeNDAP access link but get a 404 when you click that link. I have a very similar dataset (a few less variables and slightly different run-time) that works fine. The biggest difference is that the dataset that doesn't work was created in NetCDF-4 format. However, I have tried converting the files (with NCO) to NetCDF-3 and still get the same 404 error. I have even converted the working dataset to NetCDF-4 and that dataset continues to work. I have turned "Files" on for the "ROMS ESPRESSO Real-Time Operational IS4DVAR Forecast System Version 2 2013-present" datasets at: http://tds.marine.rutgers.edu:8080/thredds/roms/espresso/catalog.html if anyone would like to reproduce this. Perhaps with a debugging build of the TDS. I am using Java 1.7.0_21, Tomcat 7.0.40 and THREDDS 4.3.16 - 20130319.1353. A subset of the working, older dataset is the last link on that page. Thanks, David Robertson catalog.xml excerpt: <featureCollection name="ESPRESSO_Real-Time_v2_History_Runs_and_Offset_Collections" featureType="FMRC" harvest="true" path="roms/espresso/2013_da/his_roc"> <metadata inherited="true"> <documentation type="summary"> Runs and offset collections for history </documentation> </metadata> <collection spec="/home/om/dods-data/thredds/roms/espresso/2013_da/his/.*\.nc$" name="espresso_2013_da_his_roc" dateFormatMark="#espresso_his_#yyyyMMdd_HHmm" /> <update startup="nocheck" trigger="allow" /> <protoDataset choice="Penultimate"> <netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2" location="nc/cldc.mean.nc"> <remove name="ocean_time" type="variable" /> </netcdf> </protoDataset> <fmrcConfig regularize="false" datasetTypes="TwoD Runs ConstantOffsets Files" /> </featureCollection> _______________________________________________ thredds mailing list address@hidden For list information or to unsubscribe, visit: http://www.unidata.ucar.edu/mailing_lists/ -Lansing Madry Unidata Boulder, Colorado