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Im getting a 404 from the browser on http://portal.nersc.gov/pydap/cpmmjo/wrfidv_d01_2011-11-01_01.nc.dds but 200 on http://portal.nersc.gov/pydap/20C_Reanalysis_ensemble/analysis.derived/pwat/pwat_1928.daily.nc.dds that would imply a server problem. did someone seesomething different? John > Thanks for passing it along Yuan. > > The 500MB file opens too quick in idv to have been downloaded I think. > > > > Sent from my iPad > > On May 23, 2013, at 12:10 PM, "Unidata IDV Support" <address@hidden> wrote: > > >> Comments from the PyDAP hosting institution: > >> > >> "Let us know if there is anything we can do on our end to help. > >> Would it be possible to get the underlying HTTP query URL that is > >> breaking? That would allow us to determing whether this is a client issue > >> or a server side problem. > >> In other words, I'm looking for the URL that the client sends across, > >> including the parameters sent in to the file (stuff after the ? symbol). > >> eg. > >> http://portal.nersc.gov/pydap/cpmmjo/wrfidv_d01_2011-11-01_01.nc?DN[0:1:5][0:1:26]&; > >> " > >> > >> > >> Is there something else they should be running (like Hyrax instead of > >> pydap?) > >> Are there best practices aspects to this, or do java netCDF library > >> authors just > >> pick their priorities one by one, and this one is a low priority? > >> > >> > >> Thanks > >> Brian > > > > Brian, > > > > I moved this ticket to netCDF-Java group to see if they have any good > > solution. My guessing is that when you try to access the small file in the > > PyDAP, it is actually downloaded to the local tmp dir and opened in the > > IDV, and this doesn't work for the very big one and doesn't matter you > > select one field or the whole file. > > > > > > Yuan > >> > >> On May 20, 2013, at 1:05 PM, Unidata IDV Support wrote: > >> > >>> Brian, > >>> > >>> The problem appears to be a function of the file size. The first file you > >>> sent us is 3G, the second is 500M. Moreover, IDV support for pydap may be > >>> limited. > >>> > >>> Best Wishes, > >>> > >>> Unidata IDV Support > >>> > >>>> But if pydap is the problem, why does this one work OK? > >>>> It is on the same pydap server, just a different directory path to the > >>>> .nc file > >>>> http://portal.nersc.gov/pydap/20C_Reanalysis_ensemble/analysis.derived/pwat/pwat_1928.daily.nc > >>>> > >>>> > >>>> > >>>> > >>>> On May 20, 2013, at 11:56 AM, Unidata IDV Support wrote: > >>>> > >>>>>> Hello idv folks. > >>>>>> > >>>>>> Any bells ring about why this remote data file fails me? > >>>>>> > >>>>>> Thanks for any ideas. > >>>>>> Brian > >>>>> > >>>>> Brian, > >>>>> The pydap is quite different comparing to the regular opendap > >>>>> dataset. The url is basically a http link and the netCDF java library > >>>>> is not ready to access this kind of dataset. > >>>>> > >>>>> > >>>>> Yuan > >>>>>>> java.io.EOFException. > >>>>>>> In grads, the reading error appears as > >>>>>>> gadsdf: SDF file has no discernable X coordinate. > >>>>>>> > >>>>>>> > >>>>>>> --------------- > >>>>>>> Example of unopenable URL: > >>>>>>> http://portal.nersc.gov/pydap/cpmmjo/wrfidv_d01_2011-11-01_01.nc > >>>>>>> But when I download the file > >>>>>>> Downloads/wrfidv_d01_2011-11-01_01.nc > >>>>>>> it works OK. > >>>>>>> > >>>>>>> > >>>>>>> So it is a PyDAP serving issue. > >>>>>>> > >>>>>>> > >>>>>>> ------------ > >>>>>>> This file on the same server works: > >>>>>>> http://portal.nersc.gov/pydap/20C_Reanalysis_ensemble/analysis.derived/pwat/pwat_1928.daily.nc > >>>>>>> so it seems the PyDAP server itself is OK. Just the files or tree are > >>>>>>> not set up right? > >>>>> > >>>>> > >>>>> Ticket Details > >>>>> =================== > >>>>> Ticket ID: MHJ-258620 > >>>>> Department: Support IDV > >>>>> Priority: Normal > >>>>> Status: Closed > >>>> > >>>> Brian Mapes > >>>> address@hidden or address@hidden > >>> > >>> > >>> Ticket Details > >>> =================== > >>> Ticket ID: MHJ-258620 > >>> Department: Support IDV > >>> Priority: Normal > >>> Status: Closed > >> > >> Brian Mapes > >> address@hidden or address@hidden > > > > > > Ticket Details > > =================== > > Ticket ID: MHJ-258620 > > Department: Support netCDF Java > > Priority: Normal > > Status: Open > > > > Ticket Details =================== Ticket ID: MHJ-258620 Department: Support netCDF Java Priority: Normal Status: Open