Re: [netcdfgroup] Failure accessing an HYRAX OpenDAP server...

The difference with pydap is probably that you adding a constraint
that is causing the server to ignore whatever variable
is causing the problem. If you ask pydap for the whole
dataset, does it fail?
(e.g. something like:
http://ingria.coas.oregonstate.edu/opendap/aggregation/ocean_time_aggregation.ncml.ascii
=Dennis Heimbigner
 Unidata

On 10/17/2016 4:16 PM, Chris Barker wrote:

On Mon, Oct 17, 2016 at 2:36 PM, dmh@xxxxxxxx <mailto:dmh@xxxxxxxx>
<dmh@xxxxxxxx <mailto:dmh@xxxxxxxx>> wrote:

    The log and show=fetch appear to not work under python
    for some reason; stdout/stderr redirect?


I don't think so -- and I do get a lot of "Log:prefetch" messages, so
stdout.stderr seems to be working.




    In any case I can duplicate the error using wget e.g.
      wget
    
'http://ingria.coas.oregonstate.edu:80/opendap/aggregation/ocean_time_aggregation.ncml.dods
    
<http://ingria.coas.oregonstate.edu:80/opendap/aggregation/ocean_time_aggregation.ncml.dods>'



hmm, I don't seem to have wget, but with curl, I get the below results,
ending in:

Data:

Error {

    code = -111;

    message = "libdap error transmitting DataDDS: Could not read the
variable `ntimes'.";

-- if that's the fatal error, then yup -- not the netcdf lib -- and yet,
we can get the data with PyDAP, and if I put this:


http://ingria.coas.oregonstate.edu/opendap/aggregation/ocean_time_aggregation.ncml.ascii?u[0][0][0:10][0:10]

into my browser, I do get data.

I have asked this on support@xxxxxxxxxxx <mailto:support@xxxxxxxxxxx> --
and they have pointed out that that is a pretty old version of Hyrax --
_maybe_ that's the problem.

-CHB


$ curl
'http://ingria.coas.oregonstate.edu:80/opendap/aggregation/ocean_time_aggregation.ncml.dods'

Dataset {

    Int32 ntimes;

    Int32 ndtfast;

    Float64 dt;

    Float64 dtfast;

    Float64 dstart;

    Int32 nHIS;

    Int32 ndefHIS;

    Int32 nRST;

    Int32 ntsAVG;

    Int32 nAVG;

    Int32 ndefAVG;

    Float64 Falpha;

    Float64 Fbeta;

    Float64 Fgamma;

    Float64 nl_tnu2[tracer = 2];

    Float64 nl_visc2;

    Float64 Akt_bak[tracer = 2];

    Float64 Akv_bak;

    Float64 Akk_bak;

    Float64 Akp_bak;

    Float64 rdrg;

    Float64 rdrg2;

    Float64 Zob;

    Float64 Zos;

    Float64 Znudg;

    Float64 M2nudg;

    Float64 M3nudg;

    Float64 Tnudg[tracer = 2];

    Float64 FSobc_in[boundary = 4];

    Float64 FSobc_out[boundary = 4];

    Float64 M2obc_in[boundary = 4];

    Float64 M2obc_out[boundary = 4];

    Float64 Tobc_in[boundary = 4][tracer = 2];

    Float64 Tobc_out[boundary = 4][tracer = 2];

    Float64 M3obc_in[boundary = 4];

    Float64 M3obc_out[boundary = 4];

    Float64 rho0;

    Float64 gamma2;

    Int32 LtracerSrc[tracer = 2];

    Int32 spherical;

    Float64 xl;

    Float64 el;

    Int32 Vtransform;

    Int32 Vstretching;

    Float64 theta_s;

    Float64 theta_b;

    Float64 Tcline;

    Float64 hc;

    Float64 s_rho[s_rho = 40];

    Float64 s_w[s_w = 41];

    Grid {

      Array:

        Float64 Cs_r[s_rho = 40];

      Maps:

        Float64 s_rho[s_rho = 40];

    } Cs_r;

    Grid {

      Array:

        Float64 Cs_w[s_w = 41];

      Maps:

        Float64 s_w[s_w = 41];

    } Cs_w;

    Float64 user[Nuser = 25];

    Float64 h[eta_rho = 522][xi_rho = 310];

    Float64 f[eta_rho = 522][xi_rho = 310];

    Float64 pm[eta_rho = 522][xi_rho = 310];

    Float64 pn[eta_rho = 522][xi_rho = 310];

    Float64 lon_rho[eta_rho = 522][xi_rho = 310];

    Float64 lat_rho[eta_rho = 522][xi_rho = 310];

    Float64 lon_u[eta_u = 522][xi_u = 309];

    Float64 lat_u[eta_u = 522][xi_u = 309];

    Float64 lon_v[eta_v = 521][xi_v = 310];

    Float64 lat_v[eta_v = 521][xi_v = 310];

    Float64 lon_psi[eta_psi = 521][xi_psi = 309];

    Float64 lat_psi[eta_psi = 521][xi_psi = 309];

    Float64 angle[eta_rho = 522][xi_rho = 310];

    Float64 mask_rho[eta_rho = 522][xi_rho = 310];

    Float64 mask_u[eta_u = 522][xi_u = 309];

    Float64 mask_v[eta_v = 521][xi_v = 310];

    Float64 mask_psi[eta_psi = 521][xi_psi = 309];

    Float64 ocean_time[ocean_time = 1026];

    Float32 zeta[ocean_time = 1026][eta_rho = 522][xi_rho = 310];

    Float32 ubar[ocean_time = 1026][eta_u = 522][xi_u = 309];

    Float32 vbar[ocean_time = 1026][eta_v = 521][xi_v = 310];

    Float32 u[ocean_time = 1026][s_rho = 40][eta_u = 522][xi_u = 309];

    Float32 v[ocean_time = 1026][s_rho = 40][eta_v = 521][xi_v = 310];

    Float32 w[ocean_time = 1026][s_w = 41][eta_rho = 522][xi_rho = 310];

    Float32 temp[ocean_time = 1026][s_rho = 40][eta_rho = 522][xi_rho =
310];

    Float32 salt[ocean_time = 1026][s_rho = 40][eta_rho = 522][xi_rho =
310];

    Float32 AKv[ocean_time = 1026][s_w = 41][eta_rho = 522][xi_rho = 310];

    Float32 AKt[ocean_time = 1026][s_w = 41][eta_rho = 522][xi_rho = 310];

    Float32 AKs[ocean_time = 1026][s_w = 41][eta_rho = 522][xi_rho = 310];

    Float32 tke[ocean_time = 1026][s_w = 41][eta_rho = 522][xi_rho = 310];

    Float32 shflux[ocean_time = 1026][eta_rho = 522][xi_rho = 310];

    Float32 latent[ocean_time = 1026][eta_rho = 522][xi_rho = 310];

    Float32 sensible[ocean_time = 1026][eta_rho = 522][xi_rho = 310];

    Float32 lwrad[ocean_time = 1026][eta_rho = 522][xi_rho = 310];

    Float32 swrad[ocean_time = 1026][eta_rho = 522][xi_rho = 310];

} ocean_time_aggregation.ncml;

Data:

Error {

    code = -111;

    message = "libdap error transmitting DataDDS: Could not read the
variable `ntimes'.";

};


--

Christopher Barker, Ph.D.
Oceanographer

Emergency Response Division
NOAA/NOS/OR&R            (206) 526-6959   voice
7600 Sand Point Way NE   (206) 526-6329   fax
Seattle, WA  98115       (206) 526-6317   main reception

Chris.Barker@xxxxxxxx <mailto:Chris.Barker@xxxxxxxx>