issue_comments: 627346640

Thank you @ocefpaf!

But it raised the same error. I also try to load "u" variable with matlab ncread through opendap and also failed! So maybe is not a problem related with python...? I am very confused!

```Loading files: http://193.144.213.180:8080/thredds/dodsC/Wind/Wind_ERA5/Global/Wind_ERA5_Global_1998.05.nc http://193.144.213.180:8080/thredds/dodsC/Wind/Wind_ERA5/Global/Wind_ERA5_Global_1998.06.nc

---

RuntimeError Traceback (most recent call last) d:\2020_REPSOL\Codigos_input_TESEO\user_script.py in 58 # ) 59 ---> 60 ERA5_windIHData2txt_TESEO(lonlat_box=[-4.5, -2.5, 44, 45], 61 date_ini=datetime(1998, 5, 28, 0), 62 date_end=datetime(1998, 6, 1, 12),

d:\2020_REPSOL\Codigos_input_TESEO\TESEOtools_v0.py in ERA5_windIHData2txt_TESEO(failed resolving arguments) 826 827 # From xarray to dataframe --> 828 df = ds.to_dataframe().reset_index() 829 del ds 830 print('[Processing currents 2D...]')

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\xarray\core\dataset.py in to_dataframe(self) 4503 this dataset's indices. 4504 """ -> 4505 return self._to_dataframe(self.dims) 4506 4507 def _set_sparse_data_from_dataframe(

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\xarray\core\dataset.py in _to_dataframe(self, ordered_dims) 4489 def _to_dataframe(self, ordered_dims): 4490 columns = [k for k in self.variables if k not in self.dims] -> 4491 data = [ 4492 self._variables[k].set_dims(ordered_dims).values.reshape(-1) 4493 for k in columns

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\xarray\core\dataset.py in (.0) 4490 columns = [k for k in self.variables if k not in self.dims] 4491 data = [ -> 4492 self._variables[k].set_dims(ordered_dims).values.reshape(-1) 4493 for k in columns 4494 ]

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\xarray\core\variable.py in values(self) 444 def values(self): 445 """The variable's data as a numpy.ndarray""" --> 446 return _as_array_or_item(self._data) 447 448 @values.setter

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\xarray\core\variable.py in _as_array_or_item(data) 247 TODO: remove this (replace with np.asarray) once these issues are fixed 248 """ --> 249 data = np.asarray(data) 250 if data.ndim == 0: 251 if data.dtype.kind == "M":

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\numpy\core_asarray.py in asarray(a, dtype, order) 83 84 """ ---> 85 return array(a, dtype, copy=False, order=order) 86 87

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\dask\array\core.py in array(self, dtype, kwargs) 1334 1335 def array(self, dtype=None, kwargs): -> 1336 x = self.compute() 1337 if dtype and x.dtype != dtype: 1338 x = x.astype(dtype)

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\dask\base.py in compute(self, kwargs) 164 dask.base.compute 165 """ --> 166 (result,) = compute(self, traverse=False, kwargs) 167 return result 168

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\dask\base.py in compute(args, kwargs) 442 postcomputes.append(x.dask_postcompute()) 443 --> 444 results = schedule(dsk, keys, kwargs) 445 return repack([f(r, a) for r, (f, a) in zip(results, postcomputes)]) 446

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\dask\threaded.py in get(dsk, result, cache, num_workers, pool, **kwargs) 74 pools[thread][num_workers] = pool 75 ---> 76 results = get_async( 77 pool.apply_async, 78 len(pool._pool),

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\dask\local.py in get_async(apply_async, num_workers, dsk, result, cache, get_id, rerun_exceptions_locally, pack_exception, raise_exception, callbacks, dumps, loads, **kwargs) 484 _execute_task(task, data) # Re-execute locally 485 else: --> 486 raise_exception(exc, tb) 487 res, worker_id = loads(res_info) 488 state["cache"][key] = res

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\dask\local.py in reraise(exc, tb) 314 if exc.traceback is not tb: 315 raise exc.with_traceback(tb) --> 316 raise exc 317 318

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\dask\local.py in execute_task(key, task_info, dumps, loads, get_id, pack_exception) 220 try: 221 task, data = loads(task_info) --> 222 result = _execute_task(task, data) 223 id = get_id() 224 result = dumps((result, id))

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\dask\core.py in _execute_task(arg, cache, dsk) 119 # temporaries by their reference count and can execute certain 120 # operations in-place. --> 121 return func(*(_execute_task(a, cache) for a in args)) 122 elif not ishashable(arg): 123 return arg

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\dask\core.py in (.0) 119 # temporaries by their reference count and can execute certain 120 # operations in-place. --> 121 return func(*(_execute_task(a, cache) for a in args)) 122 elif not ishashable(arg): 123 return arg

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\dask\core.py in _execute_task(arg, cache, dsk) 119 # temporaries by their reference count and can execute certain 120 # operations in-place. --> 121 return func(*(_execute_task(a, cache) for a in args)) 122 elif not ishashable(arg): 123 return arg

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\dask\core.py in (.0) 119 # temporaries by their reference count and can execute certain 120 # operations in-place. --> 121 return func(*(_execute_task(a, cache) for a in args)) 122 elif not ishashable(arg): 123 return arg

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\dask\core.py in _execute_task(arg, cache, dsk) 119 # temporaries by their reference count and can execute certain 120 # operations in-place. --> 121 return func(*(_execute_task(a, cache) for a in args)) 122 elif not ishashable(arg): 123 return arg

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\dask\core.py in (.0) 119 # temporaries by their reference count and can execute certain 120 # operations in-place. --> 121 return func(*(_execute_task(a, cache) for a in args)) 122 elif not ishashable(arg): 123 return arg

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\dask\core.py in _execute_task(arg, cache, dsk) 119 # temporaries by their reference count and can execute certain 120 # operations in-place. --> 121 return func(*(_execute_task(a, cache) for a in args)) 122 elif not ishashable(arg): 123 return arg

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\dask\array\core.py in getter(a, b, asarray, lock) 98 c = a[b] 99 if asarray: --> 100 c = np.asarray(c) 101 finally: 102 if lock:

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\numpy\core_asarray.py in asarray(a, dtype, order) 83 84 """ ---> 85 return array(a, dtype, copy=False, order=order) 86 87

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\xarray\core\indexing.py in array(self, dtype) 489 490 def array(self, dtype=None): --> 491 return np.asarray(self.array, dtype=dtype) 492 493 def getitem(self, key):

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\numpy\core_asarray.py in asarray(a, dtype, order) 83 84 """ ---> 85 return array(a, dtype, copy=False, order=order) 86 87

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\xarray\core\indexing.py in array(self, dtype) 651 652 def array(self, dtype=None): --> 653 return np.asarray(self.array, dtype=dtype) 654 655 def getitem(self, key):

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\numpy\core_asarray.py in asarray(a, dtype, order) 83 84 """ ---> 85 return array(a, dtype, copy=False, order=order) 86 87

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\xarray\core\indexing.py in array(self, dtype) 555 def array(self, dtype=None): 556 array = as_indexable(self.array) --> 557 return np.asarray(array[self.key], dtype=None) 558 559 def transpose(self, order):

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\numpy\core_asarray.py in asarray(a, dtype, order) 83 84 """ ---> 85 return array(a, dtype, copy=False, order=order) 86 87

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\xarray\coding\variables.py in array(self, dtype) 70 71 def array(self, dtype=None): ---> 72 return self.func(self.array) 73 74 def repr(self):

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\xarray\coding\variables.py in _scale_offset_decoding(data, scale_factor, add_offset, dtype) 216 217 def _scale_offset_decoding(data, scale_factor, add_offset, dtype): --> 218 data = np.array(data, dtype=dtype, copy=True) 219 if scale_factor is not None: 220 data *= scale_factor

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\xarray\coding\variables.py in array(self, dtype) 70 71 def array(self, dtype=None): ---> 72 return self.func(self.array) 73 74 def repr(self):

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\xarray\coding\variables.py in _apply_mask(data, encoded_fill_values, decoded_fill_value, dtype) 136 ) -> np.ndarray: 137 """Mask all matching values in a NumPy arrays.""" --> 138 data = np.asarray(data, dtype=dtype) 139 condition = False 140 for fv in encoded_fill_values:

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\numpy\core_asarray.py in asarray(a, dtype, order) 83 84 """ ---> 85 return array(a, dtype, copy=False, order=order) 86 87

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\xarray\core\indexing.py in array(self, dtype) 555 def array(self, dtype=None): 556 array = as_indexable(self.array) --> 557 return np.asarray(array[self.key], dtype=None) 558 559 def transpose(self, order):

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\xarray\backends\netCDF4_.py in getitem(self, key) 70 71 def getitem(self, key): ---> 72 return indexing.explicit_indexing_adapter( 73 key, self.shape, indexing.IndexingSupport.OUTER, self._getitem 74 )

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\xarray\core\indexing.py in explicit_indexing_adapter(key, shape, indexing_support, raw_indexing_method) 835 """ 836 raw_key, numpy_indices = decompose_indexer(key, shape, indexing_support) --> 837 result = raw_indexing_method(raw_key.tuple) 838 if numpy_indices.tuple: 839 # index the loaded np.ndarray

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\xarray\backends\netCDF4_.py in _getitem(self, key) 83 with self.datastore.lock: 84 original_array = self.get_array(needs_lock=False) ---> 85 array = getitem(original_array, key) 86 except IndexError: 87 # Catch IndexError in netCDF4 and return a more informative

~\AppData\Local\Continuum\miniconda3\envs\TEST\lib\site-packages\xarray\backends\common.py in robust_getitem(array, key, catch, max_retries, initial_delay) 52 for n in range(max_retries + 1): 53 try: ---> 54 return array[key] 55 except catch: 56 if n == max_retries:

netCDF4_netCDF4.pyx in netCDF4._netCDF4.Variable.getitem()

netCDF4_netCDF4.pyx in netCDF4._netCDF4.Variable._get()

netCDF4_netCDF4.pyx in netCDF4._netCDF4._ensure_nc_success()

RuntimeError: NetCDF: Access failure```